Some dos and don'ts for mods to the gen 3 Hemi.
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- Опубліковано 3 жов 2024
- In this video I go over some mods to the modern hemi. Most mods don't yield a huge gain In power on their own. If taken as a whole bolting on an additional 100 naturally adpirated hp isn't too difficult but get your pocket book ready because it's about to get hit..hard.
Is your couch floating? LOL
lmao!
I see you doing some research checking out other dodge videos! I'm a subscriber of yours and just wanted to give you a shout out! Keep it up. And yes, the couch is floating lol
😂😂
OMG!
Hahaha I think it is 😂
B Mason you do make some very good valid points, but, I have a 2016 Shaker R/T (5.7), modified by HHP. Included is a CompCam 270, HHP/BES Racing stage 3 CNC ported aluminum heads, Manley
heavy duty push rods, 180 temp thermostat, JBA long tube headers, JBA high flow catted mid pipes
into a Borla cat back exhaust system. Custom dyno tuned with the result being 444 RWHP and 428 Ft. Lbs. RWT. Also changed to a LSD rear with 3.69 gears. Other mods have also been done . Yes it was expensive but the dramatic increase in performance is worth every penny to me.
We have recently tuned a car with similar mods, Very fun car!
Great video! Good to put this info out there for others. I've had great luck so far at the track with just basic mods. These cars are really great right out of the factory though. Hemifever tune will pick up about 20-25rwhp. Best mod for these cars is drag radials for the rear tires and a tune. Those two things right there will help you get into the high 11's in good air.
Cam, headers, injectors and _good_ tune make the 5.7 scream. She picks up between 60-70hp. Add porting, remove cats, resonators and get as close to straight pipes as you can, and forget it! Gaining over 100 ponies.
Heinrich Von Kekelnazi
That’s cap cam itself can gain u 70-80
Joseph Ventura
Maybe 40-45 GHP. THATS ABOUT IT, long tubes gains you zilch. Go with nitros, that will give you those kinds of gains.
What size injectors?
what cam are you guys talking about? be specific and show me a dyno video please
So why not just put in a supercharge?
Good video B Mason! hey I wanted to comment on the intake manifold I have the luxury of speaking with SRT engineers since I work at the headquarters here in Auburn Hills. a couple of weeks ago I spoke with their air flow expert about the what could be done to increase horsepower in the 6.4. he said the intake manifold is where the power is in the stock engine. when the engine was developed there was absolutely zero budget for the intake manifold. he explained the intake manifold is a 3-piece unit and they used the 5.7 SRV truck intake, just changed the TB location. He said if I bolt on a 6.4 "Big Gas" intake manifold (truck), the 6.4 is over 500hp! He said the truck intake works better simply because it was developed for 6.4 litres. guess who has a 6.4 truck intake...😁
Eagle Apache awww man!!! I need to find a truck intake and give it a shot.
This post has really piqued my interest. Please keep me update bmason if you find one. That is a mod anyone can fairly easily do and really might be the holy grail when it comes to intakes.
JetTech1966 will Do! I am trying to see what it would take to make it work on a car. different inlet side than ours. still collecting data.
B, did you ever locate one and run some tests with it? Cheers.
Mechanic I haven't had a chance to dig into it. this house is wrecking my free time. Not to mention the budget. I do need to look into it.
Good stuff, I have a 2015 R/T premium with the A8. You are pretty much right on based on my modding experience. I went with long tubes and no cats. The sound is great, but the gains were similar to aftermarket or SRT shorties and now I have to deal with CELs for no cats and rear O2 sensors. I would only recommend them if planning on cam, boost, or spray. The only nice gains on my 5.7 setup that you didn't mention was the exhaust, specifically from cats back. The stock suitcase mid muffler set up has to go on the 5.7 RT (~20hp gain). From the cats forward, there really wasn't much to gain. I also changed out my 2.62 gears for a scat pack 3.09 LSD and that made a HUGE difference. 2 tenths easy in the 1/4 if you can get it to hook up and drastically changes the cornering ability/launch. My stock 5.7 was a mid/high 13s car stock, 325hp/340tq on a dyno jet. It's putting down 370hp/400tq with a mopar CAI, exhaust, tune, and gears and now runs a 13 flat on street tires. As you said, it's a 12.5-12.9 car with a few mods, a tune, and a tire for the strip. Super fun car, I still get 23mpg on the highway with no MDS. Mine also has the premium option package with all the goodies. Also came with that factory white leather, a factory option only available in the RT trim package. Take care and keep making great videos sir!
zachbiff the 2011+ cars do not have "suitcase" mufflers. They're separate. Go back and get a refund, you got screwed.
I wish I had guys like you around back in the mid-90's when I got into modding my Fox body. Of course with that car there are COUNTLESS different parts and upgrades to choose from. I wasted a lot of time and money, and put way too much faith in ADVERTISED hp gains, but then again I learned from those mistakes.
Oh man, the 90`s amd early 00`s was rough on us then. Was good times though. I rem thinking if I ever reached 400hp off of 6psi, I’d be all set.
Very good information 👍🏻 thanks for making another great video
charlie ryan thank you for watching!
B Mason I love my Charger scat pack but this car is so expensive to mod with little to show for it
I have a 2014 Durango RT with a 5.7, & although it is easily the best sounding exhaust I have ever heard on a stock SUV, I have heard that a cat back exhaust is an efficient upgrade. I also saw many negative comments on the MSD as far as reliability is concerned, but at least I don't always have to deal with the poor throttle response, as mine has a switch (ECO) on the dash that disables the MSD. Since I do a lot of long trips, I would like to see an increase in fuel economy. I'm currently getting 22 - 23 MPG.
Very informative B Mason. When I dropped a valve into my combustion chamber, I didn't give up as so many 5.7 hemi owners seem to have done. I rebuilt the engine myself with the following mods. Original cylinder heads were custom reground by an old school head builder with next size larger intake and exhaust valves. (Something you really didn't mention.) K & N drop in air filter. Gibson shorty headers. Stock mid pipes and mufflers. (Gibson is the only CARB certified header for the LX.) And lastly: DiabloSport 91 octane tune including MDS delete and transmission shift stiffener. While often working 7 days a week to have money for family AND toys, my Magnum took three years to complete. Consequently, I forgot how the wagon drove comparing then to now. I do believe it's faster, but definitely louder exhaust and firmer shifts. With those four mods, I'm guessing 40 HP gain. Appreciate any feedback.
Positive Vibration I would guess roughly 30hp to the wheels if you kept the stock cam. we are basically on the same page in terms of gains. you probably picked up some torque down low as well I'm glad to hear you didn't give up on her! those magnums are getting harder and harder to come by.
15 mins of my life i wont get back thanks
Thank you for enjoying my video.!
That certainly answers some of my questions.Explains it when asked Hennessy if they do modifications on the 392.
I always enjoy your videos Bmason. You are definitely a wise man when it comes to engines and cars. I love it!! Oh yeah, today I tried to best my 4.9 0 to 60....I totally suck at launching my car. I tried a slow roll on the throttle, I tried a little more aggressive roll. 5.0 is all I could get. Tuesday I have 4 new Atturo AZ850's being delivered. I hope they grip better than those damn Pirelli's lol....those things are junk!!!!
JetTech1966 thank you very much. I have to agree. the stock Pirelli tires are garbage for traction. I've heard some good things about those atturos. keep me posted on how they do!
Will do sir. I will probably have them installed within the next few weeks. They are hard to find these days and are not as cheap as they once were unfortunately.
Preach brother! The best, most realistic advice I’ve seen on UA-cam. Listen to this guy, he knows what he’s talking about. All great points. The 5.7 does get much better results from mods than the 6.4, but most numbers from manufactures are way over rated. Thanks for spitting some truth!
Totally agree with you. Been working on my 2006 Charger 5.7 since brand new and figured out what works and whats bs. First mod- 22"x10 wheels, looked cool, weighed down and changed steering feel negatively... Changed to 2013 Challenger wheels. Eibach adjustable coilovers/camber-adj/sways...great add. Many coldair intakes, back to factory. 2013 performance heads with pistons (after dropping a couple valve seats)...great add too. Predator tuner (mostly for parameter controls, trans, revlim, shift points/firm,etc) wish i could flip a switch to go from Pred-aggress tune to factory sets quickly tho. Went thru a few exhaust setups (straight pipes - toooo fn loud) found that cats on, H pipe, suitcase out, flowmasters on gives a great low note at idle but once woken up it screams within reasonable levels. Here cops notice rips from loud exhausts and they chase you/ticket you, im no longer young, dumb and certainly not rich so driving habits inevitably changed for the better. Sorry for the long novel, looking forward to more of your uploads. ✓
Awesome. You confirmed my suspicions when I was looking for increases on my ‘05 5.7.
Eagle Apache is correct. My inside contacts confirmed the 6.4 used a 5.7 intake due to 2 reasons - more low to mid torque - and wait for it..... Cost savings.
another great video. I am looking for something fairly basic to add some power but it seems like everything cost too much with very little gain. looks like I will stay stock for a while. Thanks again..👍
you talked about the factory undertuning the 3 gen hemi. i dont know much about the 3 gen Hemi. i run the early ones a lot. but thats a diff story. about the 3 gen IMHO any / ALL cars are only developed / tuned to when they meet the design criteria then they STOP working on them. and put them in to production. IMHO. i love your talk iam looking forward to seeing the others.
just got my first hemi. i had a cummins but that hemi it gets the job done. 2016 5.7 hemi
You speak the truth. Cam, head work and a good custom tune works well.
great information! i just purchased a 2015 scat pack and literally love the power it makes stock all i have planned to do is the hellcat airbox mod with a good set of slicks for the track
I picked up 55whp with the MMX nsr stg3 cam.... a total of 85whp gains with longtubes and catless mids also.. great video. im looking into the new Holley Sniper EFI Intake, that should put me over the 500whp mark easier enough
Alot of the modifications you have noted don't bring may gains stand alone however if you tuned the motor, you will see crazy gains. A cam plus a tune can easily see 50 hp. So if you spend the money and do a larger throttle body plus the cam and exhaust( full exhaust, not the cat back) you can see extreme gains
Your mistaken its not about how much 1 part changes how the motor runs. Its about how all the parts work together. +2 hp is lame, +10 hp is not really noticable, but when it is all added up new heads, cam, intake, carb and air cleaner on a new ls or hemi engine it will make a difference. Stock cam with aftermarket heads makes no sense and new cam with stock heads doesnt make sense either. Its how things cooperate
The point of this was to illustrate the lack of aftermarket support for the gen 3 Hemi. I agree, it IS THE COMBINATION which is greater than the sum of its parts. Unfortunately, there are not that many matched combinations for this platform. The heads flow incredible numbers as stock castings, so a traditional camshaft swap will often create a lazy engine lower in the RPM range with a marginal increase up top. Intake manifolds are limited to ported factory pieces and are therefore hampered by factory inlet tracts/designs. the 5.7 is in a better position than the 392 in terms of gains (% gain over stock) , but then the cost becomes a factor.
B Mason bullshit there are several types of different intakes available for the gen 3 hemi. clearly you dont know wtf you are talking about. ritters, arrow, joe rivera, just to name a few intakes
Iv seen a 26i cam and tune ALONE gain damn near 50 hp on a 5.7 non mds truck engine. That's worth about the cost of a grand to me. I agree that there isn't a lot of aftermarket compared to an ls or say a older 5.0 mustang but the mods do work
Branden Childers without a Dyno slip, don't fertilze the field with it.
P Kranz it wasn't my truck but it was on a dyno and there are PLENTY of dyno sheets to prove that gain. Look around on Google on the dodge forums. It's definitely not some amazing secret
Good point dude everything you talkin about make sense I like I love this car this car is awesome I'm currently doing the same things you have done to yours I appreciate everything you're doing keep up the good work don't worry about the guy complaining about you can bolt everything on Under the Sun and spend millions of dollars and yeah you go faster yeah we all know that
Nitrous will love that ported stuff 👍
I feel like most of this is aimed at bigger hemis. 5.7s gain a lot from very little from what I've experienced. Especially when it comes to a daily.
I have to disagree on the cold air intake. I have a 2005 ram with the hemi. I have tried the drop in filter and it seemed to run worse. I bought a k and n cold air intake from Amazon for a little over 200 dollars that promised a little over 10 horsepower and 10 foot pounds of torque to the rear wheels. I would tell anyone it is completely worth it! The best 200 I ever spent on my truck! I can't speak for any other brand than k and n but it definitely is something you truly feel in the seat of your pants!
Bruce Borneman on the truck and an old vehicle it probably does make a difference. The intake exhaust and cats on the 392s are as good and straight through as they can possibly be. You are going to see extremely small gains if any from an intake exhaust or cat delete on a 392
Not to mention the 5.7 in the Ram puts out 395HP and the 5.7 in the Challenger puts out 375HP. It has to do with the lager intake on the Ram.
Where do you get your numbers? Thought was 345hp
GusgusA1 the older 5.7 makes 345 hp the newer (not sure what year) Dodge bumped up the power to 395 hp. in the trucks. The jeeps/ cars are all rated differently
I'm with you Professor ; I would wait until any telltale signs of MDS problems before doing a Cam swap but at the same time I would be hoping for lifter problems so I could swap out that little bump stick for one that will give my car the baddest sounding idle. Who cares if I only get 25-30 more hp ?
BDOG JR agreed!
I don't even need to listen to this guy,don't touch your car nothing works
Thank you for getting the point out that removing the cats has no gains that make it worth doing. 👍🏾👍🏾👍🏾
Ummm yea they do! Sold my cats and got a comp 268 with the coin! 50-60hp gains roughly lol
I like your videos man good work.
i want a cam for my scat pack shaker. nice little boost in horsepower and more importantly, I want my shaker to shake :)
Takes a little wind out of my sails but he has forgot more about cars than I will ever know.
The couch is floating in the back ground.🤣🤣🤣
Nothing make power with you ha ha
Haha I knew that LegMaker guy was a sham! Great marketing though, I'm happy with my K-N. Great videos man I wish I knew about you a couple years ago.
The tune from hemi fever for any hemi with the msd you can turn that shit off and it never comes back on .iv had it for over 3 years and no problems
This literally the video I've been looking for, and thank you so much B Mason for doing this!
A little bit of your terminology went over my head but knowing WHAT to research is the first step, I think.
Yesterday, a friend helped me get the Mopar front strut brace and the Hellcat air intake installed, along with the K&N filter. So far it's been minimal as far as performance but handling has really been noticeable for cornering!
Onto my next question - from what I understand, our Scat Packs are rated for 91 octane and it's possible to do a 93 octane tune, since that's what most gas stations around me take, to increase a bit of power? Is this what you meant by a very minor change?
And to expand on my original comment, could you do a video on visual mods that scream MOPAR but not ricer? For example: hood wraps, caliper paints (since scat packs have the boring black), hood pins, headlight and taillight tints, other decals like the bee badge (I envy those Charger SP owners!) and other Mopar related products. I'd love to hear your opinions on the matter! I mean, not only do we want our cars to perform the best, we want them to stand out in the crowd as well.
Great vid with helpful info and it's nice that someone includes the 6.1 for a very welcome change as I'm often left out because everything is about the 5.7 and 6.4, and that really sucks. I realize that it's because the 6.4 replaced it in SRT,s, so I get it but there's no reason that those of us with the 6.1 can't get any updated info and a little respect. I was thinking about doing a throttle body on my Challenger, but after watching this vid am having second thoughts. If I had the intake ported and Polished and then added the throttle body, do you think that they would work together better than just doing the port job?.
i have a 09 R/T 6M track pack (3.92 diff with 18" rims instead of 20's)), mods include ,392 cam, wide band 02. (tune by johan)bbk shorties, custom cat back ,fastman 82mm TB, 180 deg stat , complete rear suspension urethane bushing kit (wheel hop is gone) custom franken intake induction piping, i used 4" pvc drainage pipe (thin wall) 90" silicone elbow 4"-3" entering the TB then turning down into the fender area with a large K&N conical filter. all joint connections were smoothed out eliminating anything that would cause turbulence. i also smoothed out the inside of the k&n coupler to create a bell mouth . it was squared off go figure . relocated the IAT,over towards the fender tubing .the goal here was to smooth out the entire leignth of the induction system as well as stabilizing IAT temps. the next step was trying to keep it as cool,as possible . you guys all know that the rad fan blows directly onto the intake pipe ,TB and the IAT, heating it all up, i made a air deflector that directs the fan air bellow the TB and pipe preventing the hot air from directly hitting it. the result was IAT temps at ambient when moving and about 10 deg above when stopped with a rapid adjusting when moving. smoothing out the induction system to the TB is the way to go ,keeping IAT temps in check is critical .
my ride also has a wide band 02, in my opinion you cant dial in or tune it without that ! my A/F is on average at 12.7-1 at wot in all 3 ranges when i data log ,yes lean is power in a nat asp. the last thing on list is to clean up the casting flaws in the intake manifold ports.
im sorry guys i have no track times or dyno results (coming soon) . i also hooked up my manometer to the intake plumbing to check for pressure drop .its below 5" wc. meaning almost 0 restrictions (no vacuum at WOT) in the induction tubing .
on average my car runs about 4 sec 0-60 lowest was 3.9 . on a 60 deg day .its also hard to stop wheel spin. all these mods were very cheap BTW. thanks for reading . great Chanel !
Good job man, very thorough. ..new sub for sure
Bottom line is your ECU needs to be programmed/updated to take into account all the above. If you are changing out exhaust, intake, and engine components, but you have taken a hard look at your ECU and a custom tune, you won't get far.
old post I know but, comp cams 274 in my 5.7L, long tubes high flow cats, 3000 rpm stall, loved it, swapped my 5.7L intake for a 2.9L Whipple, love it MORE!
Did you loose torque on the low end?
Sent here by Demonology,watched a couple vids of yours and 👍.Subbbed
Thank you very much! I appreciate it!
Top mod for a 5.7 at least in a pickup truck version. Longtubes! Your 392's come with a MUCH better manifold. The cast iron lumpy turds hanging on the side of the 5.7 neuter all power.
Enjoy your videos keep up the good work!
I had good luck with long tubes, cai and dyno tune. Ended up putting down 393/418 in my 5.7.
Thats crazy, 393 is 30 more than what I got with longtubes! What dyno was that, I need to go there 😂
El Peasant it was a dyno jet😂
Great points, would love a supercharger but don't want to void my maxcare lifetime warranty thanks
Bought a 10 R/T 5.7 Challenger less than a year ago and have recently started looking into power mods and parts in general. Listening to this guy talk I am agreeing with the insane cost of this stuff. Lifters and intakes are nuts. Exploring a super charger, exhaust and tune it. Boosting the power too much then it needs a better clutch and obviously more rubber for traction. Looking like $10K easily.
This validates what I have found over the years.....leave it alone unless you are going to bore and stroke/power adding inductions. Otherwise......leave it alone
On my 392 I had my poly intake ported and cleaned up ... matched to heads ... and gained 18 whp and 20 ft lbs which I was very impressed with bang for the buck wise. Got more from that than headers and head porting!
274 cam did well but most gains up high. The mid size cam would be a better choice (270) next time. Cai and throttle body swaps gained 8-9whp really nothing to speak of.
If I had to do a 392 over again I'd do headers, 270 like custom cam and ported intake. Done.
Almost feel like with the 5.7 hemi in my ram a nice exhaust which I have and doing a street tune is perfect for your everyday commute truck.
I bought my Jeep with a cold air intake preinstalled. I don't notice any preformance gains but it takes up less space under the hood for after market junction boxes for auxiliary wiring for lights and stuff.
35 to 40 hp with no problems with the hemi fever tune and she always runs super
I have to disagree with the cam statement. Its not about the overall peak gains, but the the area under the torque curve or everyday useable torque. If you cant notice that the amount of power from just about any given rpm to the engines peak torque rpm has increased and stays more consistent throughout said rpm range (versus having a tq curve that looks like Mount Everest with a long ramp to peak tq and a quick drop off with no real length of being flat or near flat to the peak hp mark) then i wouldnt be giving mod recommendations. And this goes for upgrading the cam or cams on ANY engine.
Remember folks hp = tq x rpm/ 5252 so wherever we can make more torque (not just just at peak) we can also make more measureable horsepower. Now if we are talking about butt dynos, i would agree you wont feel near as much peak hp increase but the tq curve (and thus horsepower) throughout the rpm range will be greater than it was on stock cam or cams and in someplaces it will be SIGNIFICANTLY greater and hold near that plateau longer to peak hp.
I enjoyed your video. All those things we did as kids on poly's and wedge's gave a good bit but hemis come out of the factory with them done now. I am keen on some exhaust mods on my 6.1 mostly for sound but also in prep for some forced induction. It seems shoving some extra air in there is the best bang for buck.I'm interested to hear your thoughts on the best tuning options for pos displacement superchargers and maybe the best kits you've found? The Edelbrock kit ticks a few boxes but its exy. Whipple seem good but I cant find a complete kit...maybe I'm looking in the wrong places there.
I like the procharger system for these cars. A set of longtubes, and full exhaust will help it breathe on the top end. As for tuning, I use HP tuners myself and for tuners, Alex Peitz is the best in the business for getting forced induction combinations down the road safely.
Great Blog. Great informantion.
Kobe Barnes thank you very much
Most videos on youtube are BS. Yours is not BS. I have a 5.7 1500 and recently installed a K&N cold air intake and I really didn't feel much of a difference. I felt a difference when my Brother reset the ECU to performance mode. I really felt that. Was it my imagination or am I just having a hard time from keeping my right foot off the firewall?
The only mods I've done to my charger and challenger are suspension mods by Hotchkis those two big fat girls handle pretty good now so far no problems
So, the best thing seems to just save your money and buy a supercharger.
The Hellcats use a supercharger for very good reasons.
My car picked up almost 200 hp with the addition a kenne bell 2.8 twin screw
2010 srt8 challenger 6 speed. 13.60s at 103 mph with a few mods at 3000 foot DA to 11.70s at 121.55 mph at DA 3600 feet into a 20 mph head wind.
That was on 12 lbs boost and 305 45 18 Mickey's at 18 lbs pressure slipping clutch just a bit off line to avoid blowing the tires off. Video clip on my UA-cam channel type in Doug Kreutz 206 vids
I put jba 1 3/4" long tubers with straight 3" pipe to the crossover, 2 1/2" pipe to the tips, and a tune using hp tuners. Gained right at 46 rwhp. Only spent about $1k
David Perkins which website did you get it from . Do the headers fit with the rest of the stock exhaust .
Good video..basically if you got deep pockets then dig away at getting everything you said not to get and if you got shallow pockets then pretty much stick to your advise.. I can say that back in 2008 my brand new jeep srt8 6.1 ran consistent 13.1's ran about 15 passes that day and could not get 12's to save my life...following week I went back to the track with just a AFE intake and managed to get 3 runs in the 12's out of 8 passes...think it was12.93- 12.99 only mod was the CAI I can't scientifically say it's what helped me to get into the 12's but I can say I didn't hit 12's without it!
Great vedeo . Yassin from morocco.thinks
So I have a question for you: where can i find the rocker arm set (who makes them) and also, I’ve seen scat pack owners with the stock airbox make only 400-410whp and I’ve seen a UA-camr named SRT.B5 get headers, CAI, and tune up to 472rwhp on the dyno. That in my opinion is the best way to go starting out for power and cost.
Dude how about the incredible sound my mopar CAI makes when I hit it and how much fun I had installing it. And a definite power gain no question. Worth every penny
Thanks mason i have a 2005 scsb with a hemi that i have had for years and would love to send it over to inertia motorsports here in Austin but dam the money 😭😭
No kidding... Easy to put a hurt in the wallet region for sure.
thanks for the sound advice , you've basicly said what Ive learned already, the 6.4l is basicly maxed out from the factory, ive found the only increases are when its all bee combined, cai, resonator delete, tune and intake , Ive done all my mods in that order, I recently got a great deal on a used NOS system and paid for the diablo tune for a 100hp shot and for 200 for the kit and 125 for the tune ,its been my best mod, the diablo tuner , was essential for the nos to pull timing , it also lets me play with the shift points f/a ratio and traction control , rev limiter etc , amd most important to me anyways, change the tire sizes .so I get accurate wheel speed sensing , because theres always that one cop you know????
Good vid man quick question what's your thoughts on an idea I have
I own a 05 Ram 1500 with the 5.7 4dr 4x4 going on 200,000 miles and I was thinking about rebuilding it down the road and making it a 6.1 or 6.4 what's your thoughts thanks
Thumbs up and great since of humor
Mason, you seem to be the best person on UA-cam to ask this question to. If I wanted drop in pistons and rods on my Jeep SRT, how difficult would it be to do it myself? Do you know of any videos that show how to do this?
SRT- Mustang Killer you will need to remove the engine, this is not a probject for the uninitiated. Proper measurements need to be taken at the crank, rod journals and rings. Better to have a pro do it.
A Mason sorry but I'm unable to purchase a fine ride but huge mopar fan!
slipped a 392 (6.4) 1957 version in a 52 (cringe) for some, Chevy club coupe...summer of 67.....back in the day....but what I found out dealing with the fun factor, shorty headers, factory performance computer, gears
played with street cars 3:90s were great and now with over drive. maybe 4:10s with tall tires, and most of all if we are talking about enjoying off the line, a decent converter, mine is the over the counter from mopar the 2300 but all this in a 5.9 magnum 00 rt Dakota.. fun is fun magnums don't like revs. I know its not a hemi but its about. the enjoy the pull..everything you said I've applied to my magnum..5.9 doing so since 97...a little head work , some 1.7 rockers a little cam, and the best is the m1 intake..picked up 5 mph with it the last mod. I made..94 Dakota 5.9 yes I swapped it ..still running at 245k but. I do appreciate what you posted ..and I subbed..
thanks
Good info
Sir, I have an 18' T/A "392" auto. Been in touch with Jay Greene. He told me that with his tune and (PCU) swap with a Fastman ported Throttle Body. I could expect a 25-30 HP gain @ crank? Will I have normal non-open throttle operation's. I was told that the stock exhaust manifolds are made like a short to mid length headers? Please reply...
Have had my 2019 Charger Scat Pack for about 3 months here in Germany. There is a wrecked Hell Cat that will be parted out. Not sure of year yet. Would getting the Intake box and Throttle Body help cool the intake, maybe help with MPG? HP, would be a bonus, but not priority.
I assume I would probably need an adapter for the TB.
Great video as always. I'm considering doing full bolt ons, headers, edelbrock intake manifold and a conservative tune (I want my motor to last) with headers, intake manifold and a tube how much whp do you think I should see? I'll be happy with a 30-40 hp increase and blown away if I see a 50 whp increase. This is on 6.4 Scatpack challenger
The Sri for the 5.7 adds huge sound and throttle response. But not worth $200-$350 . Make your own
gearhead 400 what is the Sri?
Dylan Hicks short ram intake
If you go with some bolt ons and have them dialed in and tuned, your gonna see a big difference.
87MM TB + CAI + RESONATOR AND MUFFLER DELETES? Is it worth it with a drop in Predator 2 Platinum tuning?
Great Vid! Have you had any issues with the MDS on your Challenger? What mileage or factors wear out the MDS? Thanks!
Brian DeCroce I haven't had any issues personally. My truck is MDS and with nearly 80,000 miles on the clock have had no problems with it at all and it gets run pretty hard. Some guys are saying that they are running into problems with the MDS lifters but mileage doesn't really seem to be a factor in nor does the way that the car is run, meaning if it's beating on or what have you. The luck of the draw pretty much dictates when they start to go bad but General consensus has, at least somewhat led to, around 85 to 90 thousand miles. Even then it's not a guarantee that the MDS lifters will fail. If going with a different camshaft it's advised to swap them out. some shops are more sensitive than others mainly because they see the cars that fail they don't see the cars that don't fail, if that makes any sense.
B Mason Thank you for the response! That info Helps!
B Mason what upgrades would you recommend for a 2014 jeep grand Cherokee 5.7 with 45k miles for hp and torque boost?
The MDS issue was largely fixed by 2013, and eradicated by mid-2016.
I have a question that's totally off of the topic but does track mode in a 2018 Scat Pack Challenger turn off MDS. Is MDS anything to worry about as far as prolong engine life? Do some 392 engines never have problems with MDS and others do? Usually I drive my car in track mode and am hoping that when I'm in track mode that MDS will not turn on. What are your thoughts on MDS in the 392 2019 Scat Pack. Do the lifters eventually go bad and most engines or do some never have problems? I appreciate your answers to my questions by the way because nobody really answers them except you and you know your stuff as far as muscle cars go because I can tell who is full of crap and who is on top of things.
My understanding is that MDS is turned off in track mode and for sure in manual mode. As to the lifter issue, I know of some cars that never have the problem, I only know of a few 392 that ever had an actual lifter failure. That's not to say that there's a mileage amount that will determine when a lifter will fail. One of the cars I'm thinking of had a failure at about 30,000 miles. My truck had a failure at 91,000 miles. I know of some trucks and cars that go well over a hundred and fifty thousand miles with no issues.
Great video I would love to hear your thoughts on the pedal commander as I have a 2014 ram 1500 with a 5.7 hemi and am thinking about getting one
Vince Prentice no hp gains really. It’s just to take out the lag.
For someone who gained 130+rwhp on a LS2 vette by going full bolt on and heads/cam through a stalled automatic, I wish FC left more on the table for folks who wanted to mod the 6.4. Other than a muffler delete, Tazer, catch can and hemi fever tune and tires, that will probably be the extent of my scat pack mods.
jeff grabowski I agree. Or at the very least made it easier to do the mods at all... Or supported the platform
With 6-8k you can get 500-530 whp while staying n/a with the 6.4 hemi at the crank thats 600-620 hp
Thank God I don't have a Hemi cause nothing seems to make a difference and everything is crazy expensive......🤔
Problem is I like a Hemi .....
Said that about my Vett.
Hey, been watching a few of your videos, nice info and good work.
I have a question, I live in a very small town with no tuners or dynos for 1000 miles, literally.
I want to add headers and non catted mids to my scat pack.
will I run into any issues ? im guessing ill have a CEL ? or will in NEED a tune no questions asked ?
Stephen Ferguson you will absolutely have a CEL. in reality a cat back / muffler delete will give you some sound without needing a tune. these cars really don't "need" a tune.
I have a buddy with amR/T Charger. We are in North Carolina, so he took it down to Petty;'s Garage. I will ask him for the list of mods that he did, but as far as I know, he just "Scat Packed" the thing. He told me it dyno'd at 425 at the wheels.
Whadda ya think? Is he bullshitting me?
Great advice thanks dude
B Mason - good vid and I'm right on par with you here. I'm rebuilding a steal of a deal 5.7 with my own welded header kit, minor port & polish, bored +.020" and I want to go on without the MDS. I have no wiring harness or computer with this motor (not really stolen but part of the steal deal). This brings me to the cam and computer. If I buy a salvage yard computer and wiring harness, can I still drop in a little bit more cam? Something around a .500" lift.
Thanks...
Greg Hodges you can, bit will need a tune. Don't forget the MDS delete lifters and hardened push rods.
Drop in filter,flowmaster outlaw or american thunder,shorty headers,pedal comander, that's it for me lol
How many generations are in the 5.7 hemi in the ram trucks is it only 2 or 3
the more hemi research i do the more i just wanna drop a cummins in a 1st gen new style charger
thats because most folks tend to lean towards sound, mistaking grumble exhuast notes with power..which is why people tend to lose gas mileage after an exhuast system...hitting the gas harder to hear it..must be power if it is loud...lol
I just did some googling on the MDS system. The 392s do not have it. Then again, I used google to come up with that, so correct me if I am wrong.
And then I did some googling on the gas mileage difference between the 5.7 and the 6.4. It's a 2 MPG difference. It means you are going to get 38 less miles on a tank with the 392. Who is really going to notice that?
And I'll tell ya, the MDS is a noticeable performance hag in my current R/T. When I gun it, throttle response is absolutely horrible. It pauses, scratches it's computer and ponders, while it figures out how many cylinders it wants to use to comply with the command. If I can be RID of that system, and the cost of being rid of it is a measly 2MPG...count one more reason I am a happy boy for having bought a 392 today!
Kennedy McGovern I have a 392 and it does have it, it even has a menu you can go to to monitor when it comes on or not, witch you don't even need because you can tell the difference in the exhaust note. Turn on sport mode or get the tazer if you wanna turn it off.
Yeah, I stand corrected. LOL, this is why I always pose what I find on google as a question.
Thanks brother!
MDS doesn't go on if you put the car in sport mode.
bolt on whipple supercharger kits? yeah ya know im really just not on board with those just yet the stock manifold seems to do just fine your only really gonna gain like 200 horsepower anyway so yeah the stock manifold just seems to do about the same
CobraVette 1 I actually agree with your comment. Considering you will only pick up 200 horsepower, and still be less than a Hellcat. If you have an automatic then you're car's Transmission durability is also less than a Hellcat. Oh yeah, and then there is the cost... for the cash needed for a tune, blower, install ( if not doing the work yourself), a Hellcat could have been purchased. Which would have a better shortblock and better transmission durability.
I was wondering for some mods for my 09 challenger srt8 with the 6.1
Garry Adams TIRES. Tires will make you car a beast trust me. And maybe an exhaust but only if its a full system, dont mess with the mufflers that just reduces back pressure. Bet that chally is hella fun, be careful out there man, God bless.
Everyday Muscle back pressure is a myth I have been building cars for a long time and we tried it on a 5.0 ran a stock engine open headers for a month and no problims
Less back pressure is good. Loss of velocity is bad.
The exhaust systems on the newer (2011+) cars are not restrictive. Pick up a used system for cheap.
Although not applicable to a Gen 3 Hemi, I have tell you this. I saw a vid on UA-cam awhile ago and they tested stamped steel rockers vs roller rockers. It was on a 350 SBC and there was NO effing difference. Can you believe it? Stinkin' ball and stud rockers vs rollers lol.
Anyhow, the gains will be worth it when you up the spring pressure and camshaft no doubt but as you were talking mods to the Hemi and how practically none of them work in of themselves, I couldn't help thinking of that.
BTW, did you see the header dent test? Banging them bad made no difference in power or torque. It wasn't until the *uckin* things were flat that the power even started to fall off. The vid was hilarious. The 1st dent made the power go up.
To me it shows on the street mandrel bent headers are a complete waste of time. Perhaps Bernoilli's principal at work. I'm not sure, but I'll never pay to get mandrel headers built again after watching that and I'll never care about equal length long tube headers either. Scavenging occurs, but in such a narrow bands that it seems pointless in a street driven vehicle now. They work well in the high end but I doubt it's the scavenging more the reduction in pumping losses that help with long tubes.
B Mason- Question for your brain:
Can you let me know what would be needed to put a 6.4 long block into 09 Challenger RT 5.7(pre MDS?) I did my oil change and found a head of a bolt (10mm- no idea where it came from.) From what I have read, there isn't much to do to get this conversion to work. Thanks in advance for the knowledge you have provided.
-Jim