Just a note on the pistons: the reason they blow ringlands like that is due to the very tight stock ring gap. Lots of guys havs really good results using stock pistons with wider ring gaps in the high .020" and low .030" ranges. With the stock gap of .015" pump gas is just too much heat for them at the 500+ mark, and they but together.
@@COMotorsports For sure. I do see a surprising amount of people running genuinely 600whp through bone stock motors on full e85 and doing it for a long time. Whether or not they have blown ring lands and send it anyway I'm not really sure lol. But like you said, the main key is keeping heat and knock away.
Fully agree with you, running boost on std ring gap is playing with fire it WILL break the ring glands it just a matter of time even on a forged piston 🏁
They sound amazing for sure! I currently own an Atlas with the 3.6 flavor and it replaced my Touareg that was recently totaled which had the 3.6 flavor in it as well. Very smooth engines that sound awesome when you "feed em the onions" Now it might not be the most powerful engine out there but the Acura Vigor inline 5 sounds even better. One of the best sounding engines ever made!
Now we're in my wheelhouse 💪. My stock rods lasted until 30psi, 20* of timing, on e85, and borg s366. So approx 600-700 wtq is the limit or stock rods. Stock pistons are good to about 600whp with them being gapped to roughly 0.025". Anything more and you need aftermarket forged. When tuning, keeping it a point or two on the rich side and will save the hot cylinders. A head spacer/low conpression pistons are only necessary when using pump gas. E85 does not need lowered compression so you get to keep low-end torque when using corn juice. The mk3 12v vr6 has a FIBER head gasket and MUST be replaced if turboing. It will not hold pressure well. While the head is out, put new valve seals in and HD springs.
when they do get built though it makes an insane amount of power idk all that is done to the cars to make them reliable with that power but all the videos the car is a daily driver most the time even with the insane power @@patriklenck1735
Would you guys ever consider making videos recording the process of building an engine? Kind of like what humble mechanic does, I think you'd provide a lot of great info for people building their engines
@COMotorsports Builds for a purpose like a budget build to go racing etc brings views from people who aren't as nerdy about all the internal details of engines. Go challenge the beard :D
So i own a b5. It started life as a 1.8t with a 5 speed. At 302,411 miles one of the injectors shit the bed resulting in a hole in the piston, tube 3. I bought a 24v vr6 from my local wrecking yard for $460. I did carillo rods, weisco forged pistons with the stock crank. My grandpa has been a motorsports focused engine machinist for 50 years. He has a full blown machine shop in his garage which is less than a mile from me. We balanced the rotating assembly and did quite a bit of work lightening the crank. The largest force difference is under 3oz so, detrimental harmonics are essentially non existent. I used all ARP hardware. I ported the stock head myself, the most aggressive techtonics cams they offer, their dual valve springs, stainless retainers and keepers. Krabifab longitudinal intake manifold as well as their longitudinal equal length exhaust manifold. I went with a Borg Warner efr 8374 which means i had to cut off the external waste gate tube from my $1600 exhaust manifold but the packaging benefits the efr line gives you are absolutely astonishing. Blowoff valve AND waste gate all on the turbo? YES PLEASE!! Worth every penny. Im not a wealthy man. I have a scalding hot wife and twin 6 year old boys. So i bought everything one piece at a time. Took me 18 months to acquire all the parts. I found a 6 speed from a b7 rs4, gpa and i machined an adapter plate, clutch masters twin disc, lightweight single mass flywheel. I kept the OE front diff and modified the rear subframe to accept a 2019 rs6 rear diff. I bought a wavetrac center for the bias adjustability i currently have it at 30/70 and its absolutely fantastic it really changed the characteristics. All ECS suspension arms, fortune coilovers. My subframe bushings are solid billet aluminum, rear diff bushings are poly. It has b7 rs4 brakes from the same car i got the transmission from. I got the car down to 2880 lbs with me in it, absolutely perfectly corner balanced and 52/48 weight distribution. Ive owned 33 performance cars in my life. Every single one i modified extensively. Ive never had a car that felt THIS different after i finished the build. It feels nothing like an a4 anymore in the best ways possible. Other than my 2016 Shelby gt350r its the best car ive ever owned. I do have custom subframe connectors that tie into the custom strut tower braces i made. But no cage. The chassis is so stiff it picks up a wheel pulling into my driveway. Its absolutely unbelievable. I have it on e85 right now and a very conservative tune. She makes 704whp @ 7300 rpm, 590 lb ft with a straight up diesel curve. My dad owns a seriously badass 2018 gt3 rs. My little black 4 door Audi makes it look stupid. My dad was a naval aviator. One of the few Marines who flew f-14s. Yes just like Maverick hes the coolest person i know. He wont ride in my car. He has once. He'll never do it again because i made him puke. He said he blew chow three times in his tenure. I caused him to lose breakfast driving to lake Tahoe from Reno, Nevada where we live. Even though hes 64 that should give you an idea of the raw speed this car is capable of. It sits on 18×10 3 piece wheels with 295/40r18 r888 all the way around. Yes 100 treadwear tires really really helps those entry speeds but they're just 295s. I finished the car 11 months ago, ive put over 12,000 miles on it and all ive had to do is preventative maintenance. Change the fluids. Buy yourself a b5 and vr6 swap it. You dont have to go crazy like i did. An ebay turbo kit and coilovers with good tires will give you goosebumps i promise. Oh, most importantly, the car is on a haltech elite 2500 stand alone ecu. Thats the biggest thing is ripping absolutely every single OE computer and wire out of the car and starting over. I saved 180 pounds in electronics alone.
You should do some videos on your car; you can't say all that and not have some videos on it lol. Not in a position to own a "fun" car right this minute, but the B5 and B6 A4s have always been near the top of my list when I do.
@@02honeydew dude all my friends say the same thing. Im in introvert man. I hate the spotlight i hate cameras. Im a business owner, i have an 18 year old son and my lady and i just jad twin boys. The last thing i have time for is filming my cars, trying to figure out how to upload the footage, then i have to see all the morons who drive a fucking Tesla talk shit. I build my cars for me and the people i love. I have absolutely no desire to share what i fought overseas for and worked my hands to the bone for, for people who dont have any respect whatsoever. Not talking about you bro but you know what I'm saying Im sure. I don't have an Instagram, Facebook, none of it. Hey if you are that way, i have nothing against that whatsoever. Its just not for me. And honestly bro, i don't even have pictures of my cars in my phone. My family is my locked screen background, my dog is my desktop background. I get baked with my lady at night, we do our thing and i have insomnia so after she passes out i stay awake watching videos and writing comments that are way way way too long because I'm stoned. But i don't bullshit anyone. I don't see the point in typing lies i don't have the imagination. I could write a badass book if I did that would be a lot easier than what i do for a living. I build cars for a living. My cars are relatively mild and simple compared to what my clients bring me. When you do the work yourself and get most parts at cost you can accomplish some impressive things ya dig? Cheers brother. Don't drive fast, fly low.
@@kelevra558Well, I can respect that and I get what you're saying. Either way, sounds like you've built an awesome car for sure. I guess if things ever change/you change your mind and you wanna show what you've got going on, you best post on here in this comment that you've made a video about it so I can watch it lol.
@@02honeydew you have my word brother. Maybe when the offspring are old enough to film. I just dont have the patience and or time ya dig? Like I'm not a dick about it if people want to go for a freeway blast I'll always take them out. Another issue is the amount of times I've...lets say allegedly got scared because a UFO with blue and red lights was trying to follow me and I took off. Its happened at least 25 times
We need a much longer video with some brand specifics for build parts. Really enjoy hearing your guy's opinions and what has TRULY worked for you on the dyno. Thanks Guys!!
@@LOTEK575a lot of it is factual, i kinda get what you mean like a lot of it is just opinions and preferences but saying NONE of this is factual is really making you look silly
In regards to the cast cranks, been in the facebook groups for almost a decade now and have seen them fail in cars. Usually upwards of 5-600+ to the wheels and experiencing detonation. Also seen a lot of experienced tuners use cast cranks in close to 4 digit builds perfectly fine. It seems the cast cranks just aren't able to hold detonation very well, which still isn't good but is different than "you can't use these ever."
@@COMotorsports Yea I can. Unfortunately Facebook is not the greatest with finding old posts. I definitely remember seeing 2-3 posts in the 2 years or so about people in BUB/MK5 motors windowing their blocks at not that crazy power levels
in Europe we have no problems with stock pistons and stock gaps, obviously we have 95/98/100/102 octane at the pump, it also depends on the EGT and as written in the software, however forged pistons are always a guarantee
I run 15psi on a Mk4 gasket and non-intercooled on a 66mm turbo, but I'm also on e85. Just found your channel. Now build an 8 valve if you really wanna steal my heart. 🤪
Let's Gooooooooo boys!!! Hell yeah. Another super dope video. The videos are getting better and better. So much knowledge. Thank you and the team for all the hard work. I think I commented on a video or 2 back asking you guys to build vr6 and my prayers were answered 🤣 can't wait to watch all the episodes.
Good video. I am about to embark on a 550WHP (approx) 3.2 into a 2001 S4 B5 manual. Learned a lot and will do rods, pistons and a good head. Flywheel and adapter is probably the single biggest $$$. Probably go with Holset Cummins turbo at around 18-22 boost. Pick N Pull has my motor for $349CDN complete from Toureg.
Im building a boosted 12v in a mk2 golf right now. I'm getting close to being finished. I didn't do apr rod bolts or upgraded pistons, though. Hopefully, with the united motor sports tune I can get close to 400 wheel hp. Also got 2 spare engines and an extra transmission 😅
I just watched this. My future plans are build either a 2.5l 5 cylinder with a double overhead cam head and turbo (with a 5 speed) and a stand alone tune or a VR6 with a turbo and a tune ( and a 5 speed ). Either would go in a 2003 EuroVan camper. I am aiming for better than stock power and good highway fuel economy. To wow the crowd I’d find an Audi SR3 and mate that engine up to a 5 speed ( that will probably blow up! ). I also have to hit the lottery to afford this! Thought you would enjoy this train of thought of mine. Cheers, G.
Just want to add, you can use stock head bolts with a head spacer. HPA uses them even with a 5mm head spacer plus 2 full gaskets, and have had no lifted heads on their 780ftlb of tq builds. ARP head studs should be a requirement for 800+.
You mentioned head spacers but when using forged pistons that lower compression is a head spacer still necessary? I guess a better question would be: what compression ratio is recommended for pump gas as you mentioned?
@COMotorsports The head spacer is a great option though, as it makes the VR a non interference motor. So maybe take that into account when making your purchase.
I have an R36 Passat wagon coming to Edmonton in the next couple of weeks. Would love to bring it over to you guys some day... although it sounds like boosting will be quite a bit more complicated vs. the 3.2.
We didn't really talk about this in videos but the issue was the engine I got for that project ended up being a dud,, bad compression in one cylinder. I have sourced another engine from a friend however it went way down the priority list after that happened.
Never heard about the mk5 r32 crank cracking but I have heard from a German guy who has 1200hp turbo vr6 that he is using a crack from a 1st gen VR6 (AAA) corrado motor and mk3 gti VR6. The mk4r32 vr6 crank starts to crank at around 800whp
We have one stashed... the original one we planned to do the engine ended up being trash so we had to track down another... which is why it's been put on hold. We have one now, but that was the major hang up.
Great video! Question though, have you guys actually seen any situations where the stock rod bolts were the initial breaking point in a turbo VR6 build? The reason I ask is that theoretically speaking, the instant of maximum strain on a rod bolt is at TDC on the exhaust stroke. When you add boost, the backpressure in the exhaust port in front of the turbine wheel, and the incoming boost itself depending on overlap, actually cushions the piston at TDC on the exhaust stroke, thus reducing strain on the rod bolts. Presumably you might also add to the top end of the RPM range with the help of boost, so that adds strain to the rod bolts, but I don't know at what point the strain forces actually become higher than they were with the factory N/A configuration. I suspect that rod bolts really aren't necessary at all in a turbo setup like they would be in an aggressive all-motor setup.
Great video. Can't wait to boost my vr. Pistons aren't in the budget unfortunately but I will be running a head spacer with arp rod bolts and head studs. I got my hands on unitronic bt630 so I guess we'll see how that does for now. Thankfully I have access to petro 94
Interested how you deal with the timing chain for the cams... I used a 3.15mm spacer to drop CR to 8.9:1 but it was enough of a lift to mean I had to make a couple of mods to the top chain cover and chain guide to get it to fit where it had pulled the chain up enough to make the tensioner guide catch the cover... I know on the HPA kit where it drops the CR to 7.5:1 they supply a chain with an extra link... is this something you do or anything you would recommend to do to mitigate the inevitable chain fun and games?
I have a Audi A3 3.2vr6 first gen, mine have forged pistonrods and stock pistons and can run fine at 750whp. I've heard the rods blow at 500hp, but pistons can take a beating. Mk5 r32 crank crack at 500hp ive heard from my tuner and vr6 engine builder
@@NeTRoMA3 you might be running e85? i run e85 and make 750whp with forged rods and stock pistons also. otherwise if i was running pump fuel i wouldve upgraded pistons also.
I’ve got an A3 8P BDB motor and from what Ive read has a forged crank 🤷♂️ “same” motor (BUB) used in R32 IV/V. Is there a way to definitively say if the crank is cast / forged? I always was under impression it was forged and not given it a full inspection 🙈. Going with 9.25 compression JE’s with MaxSpeeding H rods (with 2000 Arp’s), plus headstuds, and adding a brace plate as well. Pretty much using HPA inlet / exhaust and BW EFR92/74 turbo, cnc ported head, Newman cams, supertech valves, EcuMaster, Deka clutch… so gone the whole hog here. Looking to run 750hp … fuel will always be 99 RON … any advice for the build to make so sure I dont trash all this expense!!!?
Mk5 r32 when we turbo them we aim to run them at 480hp @ the crank, when there 500+ @ the crank they have a good chance the crank will let go in the long run, mk4 r32 had a forged crank and mk5 r32 had a cast crank, we have seen afew mk5 r32 cast cranks snap at 500+hp in the long run
When going for forged pistons and rods does the crankshaft need balancing or it's not necessary? And if it needs to be does it get balanced on its own or it needs counter weights like on a V8 engine?
Hello I really love your videos!!! I want to install a turbo for my VR6 2.8 12V, but I want it for daily driving. Can you recommend me something? Wich turbo can I use?? Is it necessary to change the pistons?? Thank you ver y much four your help!
@@Chumbucketsecret Depends on your skill level, how much you can fabricate yourself, quality of parts used.... it will not be cheap even if you did EVERYTHING yourself. Again boosting a 3.6 will not be cheap. Tuning alone will be a hurtle.
I bought a 2.0t BPY gti engine from canada that im going to build up for my mk6 R. Im gonna do pistons rods new valve seals.. i already have ttrs lpfp modded and the vis motorsport hpfp. I got a big turbo ready to make 500+ crank hp with meth and ill need to find a clutch to hold the power.
Hi is the 3.2 vr6 BDB forged crank? I’m thinking of getting a 2.15mm spacer for 9.6:1, I’ve got an Eaton r1320 supercharger with a forge reduction pulley, I’m wanting to use with it, I want a reliable daily 400-450 bhp, can you suggest injector size ?
Quick question, I'm building a 12v and have a head spacer (9.5 compression) schrick 288 cams, what size injectors do you recommend? I have ID1000 but not planning on running e85 anymore, I have a local gas station that sells 100 octane at the pump
ive always wanted to do a vr6 or i5 swap into my rs5 with a 8hp55 but leaned more to vr6 12v. everything is there to do the swap and i love the simplicity of the 12v for power except ive had concerns with the drivers side engine mounting. one option is the iabed oil bracket.plate that has the bolt holes for mounting arms but at 600-800awhp ive had concerns with possible leaking. can you guys give me some insight in this situation? my alternative is sleeving a 4.2 which i already have with the hp trans but i go crazy for vr's
Hi i wondering for a 3.6 VR6 on a porsche cayenne a turbo to gain torque and around 450 hp. Witch setup did you recommend for it ? what kind of turbo ? head gasket spacer, upgrade on fuel system and rest stock ?
A local vw enthusiast shop mentioned to me that running a double head gasket is better than a gasket/head spacer/gasket on these engines since the head spacer wouldn't "tolerate much boost". Is the two head gasket route even an option? I'm still naive and inexperienced so thank you for answering my previous question you guys are really cool
It is possible to stack gaskets but it's just more room for error. If you look at an MLS gasket you will see it's 3 layers. The middle layer gets taken out and the spacer goes in its place which replicates a stock gasket, just thicker.
@@COMotorsports Is the head spacer absolutely needed in each case or running something like JE pistons with CR 8.5 is a better option? For fueling i'm planning to get what's best at the pump + an octane booster additive most likely
I assume that was the case just want to always double confirm with experienced people. Thank you so much for replying to all my stupid questions ❤ I really appreciate the content you guys bring and time taken to reply
How much can the factory Intake manifold take in regards to boost? 3.2 bhe Its plastic and long but it hides the turbo view pretty well so I'm wondering if it can be used until some limit
Haven't pushed one, I wouldn't bother the effort to build a turbo kit around something that's going to fail doesn't make sense. Cause when it fails you're redoing intake and charge piping to run a short runner.
@COMotorsports what is your preferred head gasket for a 3.2L motor build using 9:1 pistons instead of a headspacer with plans to run 14-28psi? Block will be slightly overbored to 84.5mm.
I have a MK4 R32 and I'm running a G30-770 turbo build. It's on a standalone and tuned on e85 at 500hp with stock bottom end/head was rebuilt. I'm curious if you have ever seen the clutch pressure plate dig into gearbox housing so bad that it cracks the housing? We installed a brand new single disc ACT clutch with ACT flywheel. I drove maybe 5 months and couldn't get the car into gear. Stock 02m gearbox and the pressure plate was digging so bad it left indents on the housing. I had it diagnosed and they suspected crank walk. Wear spec is .30mm and I measured .38mm. Would the crank walk cause that much damage to the gearbox or is that more a clutch fitment or install error? I pulled the pan to see if I had any thrust bearings or metal shavings and absolutely nothing.
@@COMotorsports I did ask them if the spacer was present and they mentioned it wasn't. Shop told me that the spacer was too thin and wouldn't assist with causing that much damage.
@@j7d7s I can tell you on our drag car if it's not there it will eat the case. This is a twin setup but my point is it can make a difference depending on the setup.
I have a 3.6 VR6 I'm looking to boost and I can't find a headspacer anywhere. By any chance do y'all sell headspacers or know any company's selling them for the 3.6
Maybe you guys can give some insight. I Have a built 3.2 bottom end stock head. Did 3/8 bolts whole nine. But it does have a cast crank mk5 3.2 engine. I want to make close to 800whp. Don’t know if I should change the crank
I would love to see a VR5 build! I was looking for into them but there only seems to be a video in Polish and some french forums. Im sure its quite similar to the VR6 but it would be cool to see the differences and hear them turbo'd! Also question, is the 3.2 vr6 block is the same as a 2.8 block just bored out and with a larger crank stroke?
I was planning on doing this to the vr6 corrado I had but to many problems with the car to keep up with so I ended up selling it last year.. kinda disappointed that I sold it now 😅
It's all applies. Headspacer for most average builds, upgraded pistons for guys wanting to push it a bit further is sort of the recipe. Doesn't matter which vr were talking about really.
We have one stashed, the reason you don't see many of them boosted is because they're a direct injected engine, unlike the 3.2's. So it adds a bunch of complexity when it comes to fueling and standalone.
Just a note on the pistons: the reason they blow ringlands like that is due to the very tight stock ring gap. Lots of guys havs really good results using stock pistons with wider ring gaps in the high .020" and low .030" ranges. With the stock gap of .015" pump gas is just too much heat for them at the 500+ mark, and they but together.
Agreed (to an extent lol), we've done it and still had issues. It really comes down to the fuel being used. The real answer is keeping the knock out.
@@COMotorsports For sure. I do see a surprising amount of people running genuinely 600whp through bone stock motors on full e85 and doing it for a long time. Whether or not they have blown ring lands and send it anyway I'm not really sure lol. But like you said, the main key is keeping heat and knock away.
Fully agree with you, running boost on std ring gap is playing with fire it WILL break the ring glands it just a matter of time even on a forged piston 🏁
Why use stock rods might Aswell throw some aftermarket since ur there
agreed, mine mad 602whp on pump e85 on a stock piston and rod setup
The VR6 is one of my all time favorite engines. They just sound so good with a high flow exhaust.
Way better than any of the popular i6 engines
They sound amazing for sure! I currently own an Atlas with the 3.6 flavor and it replaced my Touareg that was recently totaled which had the 3.6 flavor in it as well. Very smooth engines that sound awesome when you "feed em the onions"
Now it might not be the most powerful engine out there but the Acura Vigor inline 5 sounds even better. One of the best sounding engines ever made!
Now we're in my wheelhouse 💪.
My stock rods lasted until 30psi, 20* of timing, on e85, and borg s366. So approx 600-700 wtq is the limit or stock rods.
Stock pistons are good to about 600whp with them being gapped to roughly 0.025". Anything more and you need aftermarket forged.
When tuning, keeping it a point or two on the rich side and will save the hot cylinders.
A head spacer/low conpression pistons are only necessary when using pump gas. E85 does not need lowered compression so you get to keep low-end torque when using corn juice.
The mk3 12v vr6 has a FIBER head gasket and MUST be replaced if turboing. It will not hold pressure well. While the head is out, put new valve seals in and HD springs.
what about a 3.6 if you would know
@@williamhall7446 3.6 is direct injected with high compression. Not the best recepie for a reliable turbo build.
when they do get built though it makes an insane amount of power idk all that is done to the cars to make them reliable with that power but all the videos the car is a daily driver most the time even with the insane power @@patriklenck1735
We’re you referring to 12 or 24v? Besides the last comment
Would you guys ever consider making videos recording the process of building an engine? Kind of like what humble mechanic does, I think you'd provide a lot of great info for people building their engines
If we get as many subs as Humble Ill be more than happy too. Lol
@COMotorsports
Builds for a purpose like a budget build to go racing etc brings views from people who aren't as nerdy about all the internal details of engines. Go challenge the beard :D
@@MycketTuff Agreed! That's the stuff humble never really talks about, could be very useful
@@COMotorsportsI would pay for a full-build course alla’ Horse Power Academy
@@COMotorsportsyou ever think about a build on patreon or members only UA-cam? I'd gladly throw out a few bucks for an in depth engine build.
So i own a b5. It started life as a 1.8t with a 5 speed. At 302,411 miles one of the injectors shit the bed resulting in a hole in the piston, tube 3. I bought a 24v vr6 from my local wrecking yard for $460. I did carillo rods, weisco forged pistons with the stock crank. My grandpa has been a motorsports focused engine machinist for 50 years. He has a full blown machine shop in his garage which is less than a mile from me. We balanced the rotating assembly and did quite a bit of work lightening the crank. The largest force difference is under 3oz so, detrimental harmonics are essentially non existent. I used all ARP hardware. I ported the stock head myself, the most aggressive techtonics cams they offer, their dual valve springs, stainless retainers and keepers. Krabifab longitudinal intake manifold as well as their longitudinal equal length exhaust manifold. I went with a Borg Warner efr 8374 which means i had to cut off the external waste gate tube from my $1600 exhaust manifold but the packaging benefits the efr line gives you are absolutely astonishing. Blowoff valve AND waste gate all on the turbo? YES PLEASE!! Worth every penny. Im not a wealthy man. I have a scalding hot wife and twin 6 year old boys. So i bought everything one piece at a time. Took me 18 months to acquire all the parts. I found a 6 speed from a b7 rs4, gpa and i machined an adapter plate, clutch masters twin disc, lightweight single mass flywheel. I kept the OE front diff and modified the rear subframe to accept a 2019 rs6 rear diff. I bought a wavetrac center for the bias adjustability i currently have it at 30/70 and its absolutely fantastic it really changed the characteristics. All ECS suspension arms, fortune coilovers. My subframe bushings are solid billet aluminum, rear diff bushings are poly. It has b7 rs4 brakes from the same car i got the transmission from. I got the car down to 2880 lbs with me in it, absolutely perfectly corner balanced and 52/48 weight distribution. Ive owned 33 performance cars in my life. Every single one i modified extensively. Ive never had a car that felt THIS different after i finished the build. It feels nothing like an a4 anymore in the best ways possible. Other than my 2016 Shelby gt350r its the best car ive ever owned. I do have custom subframe connectors that tie into the custom strut tower braces i made. But no cage. The chassis is so stiff it picks up a wheel pulling into my driveway. Its absolutely unbelievable. I have it on e85 right now and a very conservative tune. She makes 704whp @ 7300 rpm, 590 lb ft with a straight up diesel curve. My dad owns a seriously badass 2018 gt3 rs. My little black 4 door Audi makes it look stupid. My dad was a naval aviator. One of the few Marines who flew f-14s. Yes just like Maverick hes the coolest person i know. He wont ride in my car. He has once. He'll never do it again because i made him puke. He said he blew chow three times in his tenure. I caused him to lose breakfast driving to lake Tahoe from Reno, Nevada where we live. Even though hes 64 that should give you an idea of the raw speed this car is capable of. It sits on 18×10 3 piece wheels with 295/40r18 r888 all the way around. Yes 100 treadwear tires really really helps those entry speeds but they're just 295s. I finished the car 11 months ago, ive put over 12,000 miles on it and all ive had to do is preventative maintenance. Change the fluids. Buy yourself a b5 and vr6 swap it. You dont have to go crazy like i did. An ebay turbo kit and coilovers with good tires will give you goosebumps i promise. Oh, most importantly, the car is on a haltech elite 2500 stand alone ecu. Thats the biggest thing is ripping absolutely every single OE computer and wire out of the car and starting over. I saved 180 pounds in electronics alone.
You should do some videos on your car; you can't say all that and not have some videos on it lol. Not in a position to own a "fun" car right this minute, but the B5 and B6 A4s have always been near the top of my list when I do.
@@02honeydew dude all my friends say the same thing. Im in introvert man. I hate the spotlight i hate cameras. Im a business owner, i have an 18 year old son and my lady and i just jad twin boys. The last thing i have time for is filming my cars, trying to figure out how to upload the footage, then i have to see all the morons who drive a fucking Tesla talk shit. I build my cars for me and the people i love. I have absolutely no desire to share what i fought overseas for and worked my hands to the bone for, for people who dont have any respect whatsoever. Not talking about you bro but you know what I'm saying Im sure. I don't have an Instagram, Facebook, none of it. Hey if you are that way, i have nothing against that whatsoever. Its just not for me. And honestly bro, i don't even have pictures of my cars in my phone. My family is my locked screen background, my dog is my desktop background. I get baked with my lady at night, we do our thing and i have insomnia so after she passes out i stay awake watching videos and writing comments that are way way way too long because I'm stoned. But i don't bullshit anyone. I don't see the point in typing lies i don't have the imagination. I could write a badass book if I did that would be a lot easier than what i do for a living. I build cars for a living. My cars are relatively mild and simple compared to what my clients bring me. When you do the work yourself and get most parts at cost you can accomplish some impressive things ya dig? Cheers brother. Don't drive fast, fly low.
@@kelevra558Well, I can respect that and I get what you're saying. Either way, sounds like you've built an awesome car for sure. I guess if things ever change/you change your mind and you wanna show what you've got going on, you best post on here in this comment that you've made a video about it so I can watch it lol.
@@02honeydew you have my word brother. Maybe when the offspring are old enough to film. I just dont have the patience and or time ya dig? Like I'm not a dick about it if people want to go for a freeway blast I'll always take them out. Another issue is the amount of times I've...lets say allegedly got scared because a UFO with blue and red lights was trying to follow me and I took off. Its happened at least 25 times
Yeah posting a short on UA-cam is difficult. Come on, all that explaining and? Nothing.
Great VR6 info thank you! We're starting a project and gathering info, making notes, etc.
Can't wait to see you push the stock VR. You should call it the VRTurd.
We need a much longer video with some brand specifics for build parts. Really enjoy hearing your guy's opinions and what has TRULY worked for you on the dyno. Thanks Guys!!
Do some research instead of regurgitating someone else’s opinion.
None of this is factual. At all. Lolol.
@@LOTEK575a lot of it is factual, i kinda get what you mean like a lot of it is just opinions and preferences but saying NONE of this is factual is really making you look silly
A 2004 Jetta body, some kind of 4motion AWD, a 24v VR6 making 700 horsepower, and a sequential shift transmission. Wouldn't that be a sweet package.
That's currently what I'm looking to do, minus the sequential box.
@@Dexs911 Sounds like a fun project. I love a good manual, but it would be hard to deny how quick a sequential would be, without any drop in boost.
I'm in the process of boosting my VR5, here in Canada. Pretty straight forward
In regards to the cast cranks, been in the facebook groups for almost a decade now and have seen them fail in cars. Usually upwards of 5-600+ to the wheels and experiencing detonation. Also seen a lot of experienced tuners use cast cranks in close to 4 digit builds perfectly fine. It seems the cast cranks just aren't able to hold detonation very well, which still isn't good but is different than "you can't use these ever."
Thanks for this insight. I wonder if a girdle would help hold it together
If you know or see of any cast crank failure stories do you mind sharing? Appreciate the info.
@@COMotorsports Yea I can. Unfortunately Facebook is not the greatest with finding old posts. I definitely remember seeing 2-3 posts in the 2 years or so about people in BUB/MK5 motors windowing their blocks at not that crazy power levels
Appreciation from the U.K.!
respect from New Brunswick! Looking forward to swinging on down sometime and checking you guys out in person. Thanks so much!
I'm currently building a 12v VRT here in coloradi springs! I should have everything needed with this week to begin. I'm both scared and excited.
You got this.. slow n steady pace in this case🙏🏾
Hell yeah I can’t wait to see a vr pushed to the limit 🤙
in Europe we have no problems with stock pistons and stock gaps, obviously we have 95/98/100/102 octane at the pump, it also depends on the EGT and as written in the software, however forged pistons are always a guarantee
I run 15psi on a Mk4 gasket and non-intercooled on a 66mm turbo, but I'm also on e85. Just found your channel. Now build an 8 valve if you really wanna steal my heart. 🤪
Appreciate you joining in. As for the 8v.....hmm lol
Sweet set-up 👍🏾 .. definitely agree on the 8v build.. they should go wild and build a g60 turbo😅
Let's Gooooooooo boys!!! Hell yeah. Another super dope video. The videos are getting better and better. So much knowledge. Thank you and the team for all the hard work. I think I commented on a video or 2 back asking you guys to build vr6 and my prayers were answered 🤣 can't wait to watch all the episodes.
Good video. I am about to embark on a 550WHP (approx) 3.2 into a 2001 S4 B5 manual. Learned a lot and will do rods, pistons and a good head. Flywheel and adapter is probably the single biggest $$$. Probably go with Holset Cummins turbo at around 18-22 boost. Pick N Pull has my motor for $349CDN complete from Toureg.
Im building a boosted 12v in a mk2 golf right now. I'm getting close to being finished. I didn't do apr rod bolts or upgraded pistons, though. Hopefully, with the united motor sports tune I can get close to 400 wheel hp. Also got 2 spare engines and an extra transmission 😅
E85?
that thing should cough out 400whp easily on pump gas. mine did 400 @ 15 psi on pump gas
Hunting a body to start my build 😢
I just watched this. My future plans are build either a 2.5l 5 cylinder with a double overhead cam head and turbo (with a 5 speed) and a stand alone tune or a VR6 with a turbo and a tune ( and a 5 speed ). Either would go in a 2003 EuroVan camper. I am aiming for better than stock power and good highway fuel economy. To wow the crowd I’d find an Audi SR3 and mate that engine up to a 5 speed ( that will probably blow up! ). I also have to hit
the lottery to afford this!
Thought you would enjoy this train of thought of mine.
Cheers,
G.
@@g.cooney6599 best of luck
I appreciate this video
Bullikid
Just want to add, you can use stock head bolts with a head spacer. HPA uses them even with a 5mm head spacer plus 2 full gaskets, and have had no lifted heads on their 780ftlb of tq builds. ARP head studs should be a requirement for 800+.
Right up my alley. I'm building one now....
Turbo vr6s sound insane
You mentioned head spacers but when using forged pistons that lower compression is a head spacer still necessary? I guess a better question would be: what compression ratio is recommended for pump gas as you mentioned?
Lower comp pistons, no need for headspacer. It's just used to lower compression.
@COMotorsports The head spacer is a great option though, as it makes the VR a non interference motor. So maybe take that into account when making your purchase.
never thought about the spacer reducing the interference. That is a thought. How much of a spacer would that require? @COMotorsports @@mikel1804
I have an R36 Passat wagon coming to Edmonton in the next couple of weeks. Would love to bring it over to you guys some day... although it sounds like boosting will be quite a bit more complicated vs. the 3.2.
vr6 hooptie.. yeah go for it!
Excited to watch the how far a stock VR6 Will go
These aren’t the guys to watch.
I did 626 on e85 24psi only rev to 6600
@@LOTEK575 what do you mean? Have you seen the 1.8t videos?
eagerly awaiting the VR6 hooptie turbo video. thinking about boosting our lemons fiat x1/9 with a VR6.
We didn't really talk about this in videos but the issue was the engine I got for that project ended up being a dud,, bad compression in one cylinder. I have sourced another engine from a friend however it went way down the priority list after that happened.
Never heard about the mk5 r32 crank cracking but I have heard from a German guy who has 1200hp turbo vr6 that he is using a crack from a 1st gen VR6 (AAA) corrado motor and mk3 gti VR6. The mk4r32 vr6 crank starts to crank at around 800whp
I'm looking forward to the VR build.
We have one stashed... the original one we planned to do the engine ended up being trash so we had to track down another... which is why it's been put on hold. We have one now, but that was the major hang up.
@@COMotorsports I'm patiently waiting ✋️ 😌 hope you'll post the entire build 😆
Great video! Question though, have you guys actually seen any situations where the stock rod bolts were the initial breaking point in a turbo VR6 build?
The reason I ask is that theoretically speaking, the instant of maximum strain on a rod bolt is at TDC on the exhaust stroke. When you add boost, the backpressure in the exhaust port in front of the turbine wheel, and the incoming boost itself depending on overlap, actually cushions the piston at TDC on the exhaust stroke, thus reducing strain on the rod bolts. Presumably you might also add to the top end of the RPM range with the help of boost, so that adds strain to the rod bolts, but I don't know at what point the strain forces actually become higher than they were with the factory N/A configuration. I suspect that rod bolts really aren't necessary at all in a turbo setup like they would be in an aggressive all-motor setup.
LOVE WHAT YOU DO !
My dream show car is a Mk1 rabbit with a 12v VR6 with a turbo setup.
Love babble, please more
Please do boosted vr5 very interested in swapping one in my 2.slow jetta
We need to get one first. lol
Great video. Can't wait to boost my vr. Pistons aren't in the budget unfortunately but I will be running a head spacer with arp rod bolts and head studs. I got my hands on unitronic bt630 so I guess we'll see how that does for now. Thankfully I have access to petro 94
Thanks for this video🙏🏾🙏🏾🙏🏾
Interested how you deal with the timing chain for the cams... I used a 3.15mm spacer to drop CR to 8.9:1 but it was enough of a lift to mean I had to make a couple of mods to the top chain cover and chain guide to get it to fit where it had pulled the chain up enough to make the tensioner guide catch the cover...
I know on the HPA kit where it drops the CR to 7.5:1 they supply a chain with an extra link... is this something you do or anything you would recommend to do to mitigate the inevitable chain fun and games?
should mention its 3.2 24v VR
We sell/use spacers that do not require any modifications to the chains.
@@COMotorsports ah OK... What thickness and CR are they?
I have a Audi A3 3.2vr6 first gen, mine have forged pistonrods and stock pistons and can run fine at 750whp.
I've heard the rods blow at 500hp, but pistons can take a beating.
Mk5 r32 crank crack at 500hp ive heard from my tuner and vr6 engine builder
It's reverse. Rods good pistons not so good.
@@COMotorsports weird since mine run fine with stock pistons at 750whp for 20.000miles
@@NeTRoMA3 👍
@@NeTRoMA3 you might be running e85? i run e85 and make 750whp with forged rods and stock pistons also. otherwise if i was running pump fuel i wouldve upgraded pistons also.
How much boost can a competely stock 12v vr6 handle safely
For the vr6 you guys should just do a head spacer and run it on pump gas and see how far it can go.
Hello. Why you dont use crankshaft from 2.8 vr6? In Europe we use it and then dont need head spacer :)
It's very easy to use a headspacer, and gives lots of room for power and reliability with little effort.
I’ve got an A3 8P BDB motor and from what Ive read has a forged crank 🤷♂️ “same” motor (BUB) used in R32 IV/V. Is there a way to definitively say if the crank is cast / forged? I always was under impression it was forged and not given it a full inspection 🙈.
Going with 9.25 compression JE’s with MaxSpeeding H rods (with 2000 Arp’s), plus headstuds, and adding a brace plate as well. Pretty much using HPA inlet / exhaust and BW EFR92/74 turbo, cnc ported head, Newman cams, supertech valves, EcuMaster, Deka clutch… so gone the whole hog here. Looking to run 750hp … fuel will always be 99 RON … any advice for the build to make so sure I dont trash all this expense!!!?
Really appreciate you fellas getting this out. Any notes on 2618 pistons with regard to drivability, cylinder wall wear, or piston longevity?
Mk5 r32 when we turbo them we aim to run them at 480hp @ the crank, when there 500+ @ the crank they have a good chance the crank will let go in the long run, mk4 r32 had a forged crank and mk5 r32 had a cast crank, we have seen afew mk5 r32 cast cranks snap at 500+hp in the long run
Do you have instances of actual broken mk5 r32 cranks?
the pistons in this video are the 2.8 24 or 12 valve ? also, are 3.2 mk4 pistons have the same weak points. ?
When going for forged pistons and rods does the crankshaft need balancing or it's not necessary? And if it needs to be does it get balanced on its own or it needs counter weights like on a V8 engine?
No
Hello I really love your videos!!! I want to install a turbo for my VR6 2.8 12V, but I want it for daily driving. Can you recommend me something? Wich turbo can I use?? Is it necessary to change the pistons?? Thank you ver y much four your help!
@@RockyM-g4r no problem to daily a turbo vr. Quality of parts make a difference on how reliable a setup can be.
Hey man do you think I can boost my 3.6 Touareg safely without timing too much money? Reliability is a must but budget is Important.
@@Chumbucketsecret budget and reliable typically don't go together. Nor does budget and boosting a 3.6. Find another vehicle or find more money.
@@COMotorsports ball park an estimate on what it would cost? My buddy said 25k…I was thinking more..10k? 15 max.
@@Chumbucketsecret Depends on your skill level, how much you can fabricate yourself, quality of parts used.... it will not be cheap even if you did EVERYTHING yourself. Again boosting a 3.6 will not be cheap. Tuning alone will be a hurtle.
So if you were planning on forged pistons, would it make sense to just get lower compression forged pistons and not need a head spacer?
IF you need the pistons. Otherwise stock pistons are more than adequate for most 500whp builds
it depends on on the fuel you plan to run
I bought a 2.0t BPY gti engine from canada that im going to build up for my mk6 R. Im gonna do pistons rods new valve seals.. i already have ttrs lpfp modded and the vis motorsport hpfp. I got a big turbo ready to make 500+ crank hp with meth and ill need to find a clutch to hold the power.
Looking for clutch recommendations for 450ish torque range
@@haroldbutler778 We offer what you need. You can email us.
Gr8 educational video, as always guys. Planning to go with turbo setup with one 3.2 these days, so every info is useful. Tnx.
I’ve got a mk6 golf r and im just wondering if stage 3 is really worth the money or if stage 2 plus is good enough for a daily.
Dude you are on different movie 😅
Hi is the 3.2 vr6 BDB forged crank? I’m thinking of getting a 2.15mm spacer for 9.6:1, I’ve got an Eaton r1320 supercharger with a forge reduction pulley, I’m wanting to use with it, I want a reliable daily 400-450 bhp, can you suggest injector size ?
Quick question, I'm building a 12v and have a head spacer (9.5 compression) schrick 288 cams, what size injectors do you recommend? I have ID1000 but not planning on running e85 anymore, I have a local gas station that sells 100 octane at the pump
ive always wanted to do a vr6 or i5 swap into my rs5 with a 8hp55 but leaned more to vr6 12v. everything is there to do the swap and i love the simplicity of the 12v for power except ive had concerns with the drivers side engine mounting. one option is the iabed oil bracket.plate that has the bolt holes for mounting arms but at 600-800awhp ive had concerns with possible leaking.
can you guys give me some insight in this situation?
my alternative is sleeving a 4.2 which i already have with the hp trans but i go crazy for vr's
Hi i wondering for a 3.6 VR6 on a porsche cayenne a turbo to gain torque and around 450 hp.
Witch setup did you recommend for it ? what kind of turbo ? head gasket spacer, upgrade on fuel system and rest stock ?
Thanks guys ❤👏👏👏
Looking forward to watching a VR6 piston explode and a rod exit the block soon 😮
A local vw enthusiast shop mentioned to me that running a double head gasket is better than a gasket/head spacer/gasket on these engines since the head spacer wouldn't "tolerate much boost". Is the two head gasket route even an option? I'm still naive and inexperienced so thank you for answering my previous question you guys are really cool
It is possible to stack gaskets but it's just more room for error. If you look at an MLS gasket you will see it's 3 layers. The middle layer gets taken out and the spacer goes in its place which replicates a stock gasket, just thicker.
@@COMotorsports Is the head spacer absolutely needed in each case or running something like JE pistons with CR 8.5 is a better option? For fueling i'm planning to get what's best at the pump + an octane booster additive most likely
@krasimirdavidov4639 if you're doing aftermarket pistons than the headspacer is not required.
I assume that was the case just want to always double confirm with experienced people. Thank you so much for replying to all my stupid questions ❤ I really appreciate the content you guys bring and time taken to reply
Hey Dave so I want to boost my r32, looking to get400-450. so the spacer should be fine?
yep
hell yeah I want to see the VR hoopty.....😮
Good morning, the vr6 3.2 engine without forged, how much horsepower can it resist?
As much as you're comfortable running :)
Stop putting good videos out like this you're going to make me start spending money 😢
Can't spend it when you're gone.
Are there any videos of you guys doing a vr5 build?
We did not get that engine here in North America.
@COMotorsports I'm from south africa there are plenty here if you want to import one lol
How much can the factory Intake manifold take in regards to boost? 3.2 bhe Its plastic and long but it hides the turbo view pretty well so I'm wondering if it can be used until some limit
Haven't pushed one, I wouldn't bother the effort to build a turbo kit around something that's going to fail doesn't make sense. Cause when it fails you're redoing intake and charge piping to run a short runner.
@@COMotorsports makes sense, after seeing how the two turbos position i'll need a short runner either way, thank you for the reply!
@COMotorsports what is your preferred head gasket for a 3.2L motor build using 9:1 pistons instead of a headspacer with plans to run 14-28psi? Block will be slightly overbored to 84.5mm.
Looking forward to the day the 3.2 I have sitting gets some lovin
How about that turbo 2.5 VR6 out of Chinese suvs?? Any thoughts
Please explain... why would upgrading to ARP rod bolts change the inner dimensions and require line-boring? Thanks in advance.
Different clamping force. No different then squeezing a plastic bottle
@@COMotorsports Thank you
What’s Best size head spacer for 400 hp?
How can I gain a little more power? I have a 2005 Touareg with a 241 HP 3.2 VR6 engine.
Tune it
Is it possible for you guys to do a video on swapping a vr6 24v in a mk6 golf tdi ?
I so badly want to awd convert and boost my 18 Passat GT. I would love to be pushing around 500 with my 3.6
Do it
I have a MK4 R32 and I'm running a G30-770 turbo build. It's on a standalone and tuned on e85 at 500hp with stock bottom end/head was rebuilt. I'm curious if you have ever seen the clutch pressure plate dig into gearbox housing so bad that it cracks the housing? We installed a brand new single disc ACT clutch with ACT flywheel. I drove maybe 5 months and couldn't get the car into gear. Stock 02m gearbox and the pressure plate was digging so bad it left indents on the housing. I had it diagnosed and they suspected crank walk. Wear spec is .30mm and I measured .38mm. Would the crank walk cause that much damage to the gearbox or is that more a clutch fitment or install error? I pulled the pan to see if I had any thrust bearings or metal shavings and absolutely nothing.
Did you have the spacer plate in between the engine and trans, that can easily cause your issue.
@@COMotorsports I did ask them if the spacer was present and they mentioned it wasn't. Shop told me that the spacer was too thin and wouldn't assist with causing that much damage.
@@j7d7s I can tell you on our drag car if it's not there it will eat the case. This is a twin setup but my point is it can make a difference depending on the setup.
@@COMotorsports it's only a single disc clutch but it's insane that the thin metal spacer could cause the issue
@@j7d7s all comes down to the stack height of the clutch setup.
I wish you guys had a shop in Massachusetts. I wanna donate my 2017 gti
I have a 3.6 4 motion wagon b6 passat and i really wanna boost it but im broke lol, they hold way more and make more than a 3.2
Have you guys ever done a 3.6 VR6T on a Passat? Is it possible?
I'm tryna boost my 3.6 passat
I have a 3.6 VR6 I'm looking to boost and I can't find a headspacer anywhere. By any chance do y'all sell headspacers or know any company's selling them for the 3.6
do not sorry, the 3.6 is it's own beast to deal with in regards to turboing due to DI.
E85, Rod bolts, head bolts made mid 500s reliably for a while 💪🏻 until I pushed it harder (I wanted to test the limits of the VR)
Mid 5s is effin fast
MK5 R32?
On E85 there's people making nearly double that on same spec.. there's loads of people making that for years on normal pump gas no issues.
@@garyhowe88 any references? I’d love to check them out
@@jorgemendizabal6596 mkiv
Hi, I just bought a Audi TT 3.2 VR6. what would be the most reliable and cost effective way to get it to 400bhp mark?
Turbo is really the only answer
Maybe you guys can give some insight. I Have a built 3.2 bottom end stock head. Did 3/8 bolts whole nine. But it does have a cast crank mk5 3.2 engine. I want to make close to 800whp. Don’t know if I should change the crank
I believe we discuss this in the video.
hope you see it, any info about 2.5 engines ?
a whole bunch coming.
U don't need injectors and fuel pump for 400wheel turbo?
@@roguecaptor8734 yes
44psi good, 45 psi engine very bad.
But got my stock block 12v down to 8.35@157mph
I would love to see a VR5 build! I was looking for into them but there only seems to be a video in Polish and some french forums. Im sure its quite similar to the VR6 but it would be cool to see the differences and hear them turbo'd! Also question, is the 3.2 vr6 block is the same as a 2.8 block just bored out and with a larger crank stroke?
24v have different seperation angles if that's what you mean.
You ask i deliver😁
@@TorpedoStudios I did see some of your videos while doing VR5 research lol. would love to see a build on a 20v vr5!
24v 2.8 vs 24v 3.2 I believe was the question. Same basic block?
Better to drop in lower compression pistons than the spacer?
Depends on power. 90% of VR builds really only need a spacer.
do the 12v cranks fit the 24v VR´s?
We got the VR5 2.5L in Canada but you never got it in the US ??
We didn't get it in Canada to my knowledge.
We definitely did not get the vr5 in Canada
Whats the average cost for 500whp on a vr6 24v?
Depends on quality of parts, labor costs in your area, how you're tuning it, what skills and tools you have.
Hot content 🔥
Make sure you make them exhaust runners extra long 😏
can I ask ..
can you put ITBs on a vr6 ..?
if so is it recommended?
Of course, get the CC ready.
yes. possible, expensive but it will sound so amazing. ITB and turbo I haven't seen anybody do that yet.. ua-cam.com/video/ECdlexvs-YA/v-deo.html
I was planning on doing this to the vr6 corrado I had but to many problems with the car to keep up with so I ended up selling it last year.. kinda disappointed that I sold it now 😅
I’m looking to build a vR6 3.6L v2 atlas se
Can I stock vr6 24v be turbocharged without any upgrades to the internals?
Headspacer allows it to go pretty far in the power department.
No love/mention for the 2.8 24v?
It's all applies. Headspacer for most average builds, upgraded pistons for guys wanting to push it a bit further is sort of the recipe. Doesn't matter which vr were talking about really.
@@COMotorsports Roger that! Thank you
What about the 3.6 vr6? Would you guys do a turbo 3 6 in the future? It seems like the 3.6 vr6 gets no love
We have one stashed, the reason you don't see many of them boosted is because they're a direct injected engine, unlike the 3.2's. So it adds a bunch of complexity when it comes to fueling and standalone.
@@COMotorsports I see, it would be a really cool build though, hopefully 1 day you guys can pull the trigger on that.