He won’t sell you something you don’t need. That’s for sure. There’s a difference between “selling” and helping someone get what they want to achieve their goals best.
@@Stapleton42 this guy is the "Tommy Chong" of turbos..... I can tell turbo talk gets him just as excited as a Big Ole Fatty does for Tommy on Cheech and Chong him and Tommy look like they could be brothers especially nowadays... I would have to see a picture of him to see if him and Tommy look alike in their yesteryear's
I’m a Millwright by trade and have had a fair bit of formal training on turbochargers and their applied theories and principles. Robert is spot on with his explanations. In fact, skidding, and fretting are two of the largest factors of failure we see in overlubed high RPM scenarios. The more I listen to the guy, the more he confirms my next turbo choice. Wouldn’t matter if he sold some off the shelf, generic whatever. He understands it and that goes light years farther than someone selling something because it’s shiny and makes cool noises. 👍🏻👍🏻
Great to see another millwright and someone else understanding a lot of the video. Turbos aren’t as simple as a lot make them out to be and I’ve been questioned so much in my turbo choice for my k20. ( local 1090 )
G'Day Benjamin,,My Sons name,,but any way,,yep and yep,,we use special 6202 bearing with super duper cage tech to stop cages blowing up with bearing run up to speed,, REG,Roller entry Guides,use's a 60mm dia,carbide roll when new,,we use these roll to stand bars up in a mill to make round rods,,we would machine roll to scrap diameter of 30mm,,Imagine how fast this one runs,, We roll 17 kilometres of steel,5.5 diameter in about a min,,2 sec gap and another bar up the previous bar arse,InThat 2 seconds,cooling water would slow down roll to a stop,,then we hit it again flat out for a min..Balls were accelerating that fast we would blow the cage right out of the bearing,Used Air/ oil Lub system,,Ashlow Or woener,,Injected 0.3cc of oil in air line every 30 secs,and the air at 200 kpa would blow dribble into bearing,, Ex millwright, One Steel Rod Mill,Newcastle.Australia,
Thanks for the kool video. Some old dude told me that journal bearing turbos take a beating in commercial vehicles for a million miles or more all the time, and often times they don't go bad. He also stated that journal bearing turbos are cheaper and easier to maintenance. In addition, they almost never need special tools to be repaired.
@@Stapleton42 One thing he didn't mention is that ball bearing turbos spool faster than journal ones. That is why you pay more money for the ball bearing. Journal bearing is old technology. Ball bearings allow you to run a larger turbo with less lag especially utilizing twin scroll or variable geometry inlets.
@@robertyoung6626 You're very welcome. Your explanations are so everyday, it just makes it easier for the less informed among us to learn something. The BoostedBoiz and PFI speed have used cheap eBay turbos to great effect and learning about journal turbos, from you today, has explained a few things for me. Hope to see you on the channel again sometime. 👍🇬🇧
The first time I met Robert was at his home outside of Austin TX. I drove down there to pick up the FP T-28 that had just came out. He gave me a little tour of the shop and a spare 14B compressor wheel to fix an old turbo. Dude knows his shit and is down to earth as hell. From that day on he earned my business and Is a cool guy to boot. Long live FP!
Robert is talking, take a seat! There is no video thats to long with robert talking shop. Ive had the pleasure of knowing about him for 10 years or so now. He got his start in the DSM platform and he still supports us with products and sponsoring events.
the way that he explains all of this is is amazing gives examples and dumbs it down a bit props to robert for making this so understandable and also didnt know a turbo needed water?? literally learn something every video cant wait for more
I think spool characteristics are the biggest factor that I see for customers choosing ball bearing turbos. If I’m building a street car for a customer who is more an enthusiast than a racer we’re going to lean them towards a ball bearing unit. This will offer them good boost and throttle response without much effort on part of the driver. Some guys don’t want to brake boost and setup various anti lag tunes they literally just want the power to be there when they flat foot the gas pedal and a ball bearing unit is much more well suited to that purpose than a JB setup. I also find certain units very well suited to niche builds as well; when I was choosing a turbo for my B20Vtec I knew I wanted response, off idle torque and good power at low boost because the engine is an 88x89mm stock sleeve B20B running 12.6:1 static. I ended up running a GTX3076R and a was able to make 460whp at ~13psi and basically tune it to perform almost like a stout NA build because of the way the power came on and held.
Fantastic explanation of the differences! thanks for posting this. Its amazing how this platform helps everyone learn and helps us to share the experience
I will always believe there are many different types of people in this world like for instance smart people that cannot explain and then there are smart people that can elaborate and paint a picture for you and this man has all the analogies I like this dude
Thank you for great information I have been using journal bearing turbos for 10 years for street and most people think ball bearing is better than journal turbo . Thank you
I was once told " If you cant explain it to a 5yr old, then you don't understand well enough to teach." This man is on point. No bs just facts and excellent analogies.
Robert really knows his stuff! FP make some great turbos! 10yrs+ now running his fp Green & Black on my 2.2L Evo 9mr! solid power & reliability what more could you ask for... maybe a FP Zero haha
So refreshing to hear an intelligent person speak that can articulate themself this good !! Best video i have watched on UA-cam in a long time , no bullshit , just well explained facts
This is exactly what I wanted to hear when I clicked on it. I love how I get real info especially when they answer questions at the same time wish I knew this guy give us ama with him please
I have another question. What happens when you add a BOV to a bypass system? I have seen some guys adding a BOV to their factory bypass system and an intake. What effects will take place when you start vent to atmosphere instead of recirculating back into the intake. For context, I would like to add a BOV to my Veloster N but im not sure if it's a good idea.
Man, it's awesome to see Robert share the knowledge with passion and breaking it down to simple terms. I highly enjoyed this talk. Keep at it man, great content.
I'm planning to use a 35 year old Garrett turbo with a modern billet compressor wheel on my Volkswagen TDI. The turbine geometry is still the same that gets used today, the housing A/R is tight enough (0.36), and I don't have any need for ball bearings. I could use a VNT on it instead but the wastegated turbo will never have issues with sticking vanes. Old technology isn't always bad.
By far the best video on UA-cam!! All because I love being educated!! This is great information for anyone that is boosted in any platform of motorsports
@@Stapleton42 best video by far!! Like I said before all because I love being educated. Anything that revolves around motorsports I'm glued to that video, and this video takes the whole CAKE 🎂 son!!
Dang...thank you Mitchell for sharing this video! Learned so much!! I was always told that journal bearing is oem/cheap application and ball bearing was the high end full race application. And holy cow just like that I am today years old 😂😂 Thanks to Robert too!!
I’m so glad you put up this video because it explained a lot. I was totally confused after watching yesterday’s video. I’m still learning about turbo’s and the current racing methods. Yes I’m a dinosaur.
This was super cool to hear specifics about. I remember seeing when i was in highschool that the ball bearing turbos sounded better or something like that but i never thought more of them for any reason.
DN (diameter in mm times speed in RPM) limit on a bearing is a real concern when designing a turbo, or any turbomachinery that spins fast. If I remember rightly, for some ball bearings it is around 1.8 million. I was experimenting with air bearings, also. But these are a pain to design right, and require very high surface speeds, which works against the burst speed limit. However, the DN limit is in excess of 3 million; quite frankly, they have a low limit, before they 'take off'. But the oil sleeve on the roller element bearing is to dampen rotordynamics vibration in general, not just for shock loads. Journals have a natural damping characteristic of the oil film; rolling element bearings are naturally stiff. This makes them rough for any critical speed. Great point on cooling, though. Differential thermal expansion is also often a killer. I once killed a micro gen set by inadequate cooling: shaft journal and the bearing sleeve 'grew' into one another. Fun times.
I have a 2001 Silverado 3500 dually With a 496 and a GT 45 journal bearing turbo charger only running about five psi. I often get the “why not ball bearing they are better “responses to my set up. I agree marketing push is ball bearing as a better product but there is no reason a journal bearing will not be just as good in a correct application.
Since English isn't my first language...whats the conclusion now? Ball bearing turbos not best choice for my planned Audi RS3 (2018) Stage 3 but TTE700 instead or what? Maybe someone can summarise his words and give me advice? Thanks
This video was so helpful thank you for the great analogies and deeply explaining the benefits and cons to each. I believe this helped me decide the turbo to pick for my street build. Building a sohc 2.4l Nissan 240 sx power goal is 430whp , think after watching this i can save some money and go with a gt3582r journal bearing turbo as opposed to ball bearing ones i was looking at. Please if you have a different opinion on what setup i should run for hp goal I’m all ears!!
This guy is awesome. They had a shop around the corner from me in the early 2000s. Back then they had the dsm game on lock. Keep up the awesome content homie. 😎👍
I'm confused for the longest time whether I should go for journal or ball bearing turbo for my 3S-GTE powered street project car. Thanks to this video, I'm convinced enough to go for a journal bearing since I'm not planning to do crazy amounts of boost. I just want a fun and reliable project car that I can daily without having to worry about something breaking expensive if things go south (as in the case of ball bearing turbos which aren't almost always rebuildable unlike journal bearing turbos). I guess ball bearing turbos have their place in proper applications. Regardless, any type of turbo should last as long as they're properly operated, matched, and taken care of. Cheers!
Could also thermally insulate the hot side from the cold side, whether it was a longer distance between the two or modified oil passages in the turbo. Not very much heat transfer through the shaft itself, but the cartridge's bearing housing is what does most of it. The need for water cooling is a sign of inefficiency which I interpret the design needs to be changed
I’ve always been a fan of journal bearing over ball bearing....(mostly because I’m cheap) and always been shamed for it... ball bearing have their place.... but IF they were the best, at that type of load, in that situation they’d be more widely used... but we use journal bearings in engines, for a reason. Keep them oiled, and They do work!!
I'm not sure I agree with Robert's comments, although I've got a lot of respect for what FP have achieved. Regarding the fluid film discussion-Air hockey uses air. This is a fluid of bugger-all viscosity which leads to zero heat, versus oil which is significantly higher and generates significant drag and heat. I've got a Forced Performance turbo in my Subaru at the moment and I'm happy with it for now. Not all of us would do something so stupid as upping the boost control solenoid duty cycle when their combination mysteriously drops boost. Whatever the case, I've got good results with my FP Green (not just on dyno but using GPS trace at the track to verify) and I'm looking forward to having a good crack with a ball-bearing Blouch sometime soon.
@@Stapleton42 the air hockey analogy is OK for explaining how the oil film works to avoid wear, but it's a bit misleading in other ways that also describe how sleeve-bearing turbos work. The air hockey analogy may be misinterpreted by some as leading to lower drag on the shaft when compared to BB turbos.
Man really.....your content keeps getting more information and more in-depth about race car and real life situations then any other channels on here...👏👏👏👏#staysaucy #stapelton42 #turbo8689 Your my 1rst now to watch now..
@@Stapleton42 and I thank you so much for that..love getting notifications that you put a upload up..makes my day..so glad I saw you on pfi speed with the #lsxcalade on the dyno, cuzz man your channel is 🔥🔥🔥
my old boss raced superstock and the two things he always stressed with the racecars was when it starts up it needs to get up to temp. and after a weekend racing they fogged the engine with marvel mystery oil before loading it back in the trailer. all that stuff worked when the engine got torn down at the end of the year the valves, seats, rings and everything looked like it was just assembled
Marvel's mystery oil is absolutely nasty if you let it sit. It congels into almost a glue. I see no reason to ever use that product. If you want to fog the engine use ATF. It has amazing anti-corrosion properties and will not go off on you turing into glue.
Just subscribed to your channel a few days ago been following your IG for a while but I've learned more in these last 2 turbo videos than I knew when I had my pte boosted 5.3. Really liking what you got going on here man keep it up! Excited to see how Uncle Rob turns put each step of the way
Hes recorded a tech talk that was about an hour long .Search for Forced performance Tech talk. Also you can pick up alot of tech talk from the Power and Speed podcast episodes 68 and 155 and the Do it for a living podcast episode 10. All of these are on youtube.
He just saved me an ass ton of money and more than likely the same amount of aggravation. Even going to hit up their site today with a huge thank you for getting this info out there. Great job on this one Mitchell. Thanks 🦅🇺🇸✌️ Edit: They have a Facebook and Instagram. Go drop them a huge thanks for this info.
So I seen somewhere that bov block off plates are only rly safe for ball bearing and not journal bearing so is doing a bov block off plate safe for journal bearing
I love to hear an engineer over a salesman
He won’t sell you something you don’t need. That’s for sure. There’s a difference between “selling” and helping someone get what they want to achieve their goals best.
Best vid on UA-cam right now
Very well said
@@BGCONTRACTINGLLC if you like that. Check out Gale banks’ duramax project
@@Stapleton42 this guy is the "Tommy Chong" of turbos..... I can tell turbo talk gets him just as excited as a Big Ole Fatty does for Tommy on Cheech and Chong him and Tommy look like they could be brothers especially nowadays... I would have to see a picture of him to see if him and Tommy look alike in their yesteryear's
The knowledge this guy has is unreal. Definitely someone who knows what he is talking about.
Robert should teach, this was great.
This was unbelievable content
Tommy Chong's really cleaned up his act, I didn't know he was such a pro on turbskis!
When he finally figured out it was Dave at the door, it gave him a Rehab Ephiphany
This comment deserves way more recognition
More like if mark maron went to engineering school lol
😂😂🤣🤣👍👍👍👍
I’m a Millwright by trade and have had a fair bit of formal training on turbochargers and their applied theories and principles. Robert is spot on with his explanations. In fact, skidding, and fretting are two of the largest factors of failure we see in overlubed high RPM scenarios. The more I listen to the guy, the more he confirms my next turbo choice. Wouldn’t matter if he sold some off the shelf, generic whatever. He understands it and that goes light years farther than someone selling something because it’s shiny and makes cool noises. 👍🏻👍🏻
loud turbo noises go brrrr
Great to see another millwright and someone else understanding a lot of the video. Turbos aren’t as simple as a lot make them out to be and I’ve been questioned so much in my turbo choice for my k20. ( local 1090 )
G'Day Benjamin,,My Sons name,,but any way,,yep and yep,,we use special 6202 bearing with super duper cage tech to stop cages blowing up with bearing run up to speed,,
REG,Roller entry Guides,use's a 60mm dia,carbide roll when new,,we use these roll to stand bars up in a mill to make round rods,,we would machine roll to scrap diameter of 30mm,,Imagine how fast this one runs,,
We roll 17 kilometres of steel,5.5 diameter in about a min,,2 sec gap and another bar up the previous bar arse,InThat 2 seconds,cooling water would slow down roll to a stop,,then we hit it again flat out for a min..Balls were accelerating that fast we would blow the cage right out of the bearing,Used Air/ oil Lub system,,Ashlow Or woener,,Injected 0.3cc of oil in air line every 30 secs,and the air at 200 kpa would blow dribble into bearing,,
Ex millwright, One Steel Rod Mill,Newcastle.Australia,
but sutututututuuu
this is why restrictors and stuff exist for ball bearing turbos
This guy gives a solid and detailed explaination that only comes from an intimate knowledge of the subject without being condescending. Awesome.
Very true
Condescending? Toughen up Nancy...
Been working on turbo diesels for 18 years. Learned something new today. Appreciate that.
Really enjoyed hearing Robert share his wisdom and I can honestly say I have a better understanding of turbo mechanics now, GOOD STUFF!
Using an air hockey table as an example to explain dynamic lubrication on bearing journals was a great touch never thought to f it like that
Thanks for the kool video. Some old dude told me that journal bearing turbos take a beating in commercial vehicles for a million miles or more all the time, and often times they don't go bad. He also stated that journal bearing turbos are cheaper and easier to maintenance. In addition, they almost never need special tools to be repaired.
Amazing information right here. 11 mins with this man has taught so much more than folks have learned thru years of online/google searches.
Same lol
@@Stapleton42 One thing he didn't mention is that ball bearing turbos spool faster than journal ones. That is why you pay more money for the ball bearing. Journal bearing is old technology. Ball bearings allow you to run a larger turbo with less lag especially utilizing twin scroll or variable geometry inlets.
More 'Robert', thanks! 👍💯 Edit: Butter in a pan, air hockey and hydro planing. Who knew, but it was all so easy to understand. Great bloke.
100% this ^^
Appreciate it Paul :)
@@robertyoung6626 You're very welcome. Your explanations are so everyday, it just makes it easier for the less informed among us to learn something. The BoostedBoiz and PFI speed have used cheap eBay turbos to great effect and learning about journal turbos, from you today, has explained a few things for me. Hope to see you on the channel again sometime. 👍🇬🇧
He’s so smart
It's very refreshing listening to someone who actually knows what they are talking about.
The first time I met Robert was at his home outside of Austin TX. I drove down there to pick up the FP T-28 that had just came out. He gave me a little tour of the shop and a spare 14B compressor wheel to fix an old turbo. Dude knows his shit and is down to earth as hell. From that day on he earned my business and Is a cool guy to boot. Long live FP!
Thanks! I loved the Austin days :)
This dude is awesome. Spoke with him on RW 2.0. He's dedicated. He went to every track
he's the man
I can't wait to see what Robert says in tomorrow's daily turbo video. Let the golden nuggets of info keep flowing!
Always fascinating listening to someone who has a real passion for what he's talking about! This guy is awesome!
I’ve had a handful of FP turbos over a span of like 20ish years? Still rocking one on my road race EVO!
Such a real dude, and has a way of talking that we just get. Love it
This was the most fun I've had in a long time. And yes, learning is fun to me if it's the right thing.
Its so refreshing to have things explained and simplified by someone who knows EXACTLY what they're on about, very interesting.
Robert is talking, take a seat! There is no video thats to long with robert talking shop. Ive had the pleasure of knowing about him for 10 years or so now. He got his start in the DSM platform and he still supports us with products and sponsoring events.
Robert is the man for sure
We need to hear more from him. I love knowledgeable people. They help us enjoy our products because they solve problems.
the way that he explains all of this is is amazing gives examples and dumbs it down a bit props to robert for making this so understandable and also didnt know a turbo needed water?? literally learn something every video cant wait for more
I knew nothing about turbos. Now I know more then anyone I know. Amazing guy with good explanations of information.
Fantastic. Thanks to Mr. Young for sharing his knowledge and experience and Thank You Stapleton for making this video
I think spool characteristics are the biggest factor that I see for customers choosing ball bearing turbos. If I’m building a street car for a customer who is more an enthusiast than a racer we’re going to lean them towards a ball bearing unit. This will offer them good boost and throttle response without much effort on part of the driver. Some guys don’t want to brake boost and setup various anti lag tunes they literally just want the power to be there when they flat foot the gas pedal and a ball bearing unit is much more well suited to that purpose than a JB setup. I also find certain units very well suited to niche builds as well; when I was choosing a turbo for my B20Vtec I knew I wanted response, off idle torque and good power at low boost because the engine is an 88x89mm stock sleeve B20B running 12.6:1 static. I ended up running a GTX3076R and a was able to make 460whp at ~13psi and basically tune it to perform almost like a stout NA build because of the way the power came on and held.
That’s exactly why I chose a G30-770 for my built fk8 Type R. Ceramic bb, low drag, quick response.
How has it held up?
the amount i’ve learned from this channel is bonkers man, thanks bro
Thanks dude that’s my objective
Literally the best video on turbo explanation I’ve ever seen. Mind blown... I will 100% be getting a journal bearning now. Thanks for sharing🤟🏻
Thanks man! I’m here to help and so is Robert. That’s why we’re working together
I live in the desert where it is hot and the information you shared helps my build so much. Thank you!
i could listen to this guy talk about turbos for about 7 weeks
Fantastic explanation of the differences! thanks for posting this. Its amazing how this platform helps everyone learn and helps us to share the experience
2 minutes in and I'm..... soooo F'n excited to binge all of y'alls videos.
Manual machinist. Mills, lathes etc
I will always believe there are many different types of people in this world like for instance smart people that cannot explain and then there are smart people that can elaborate and paint a picture for you and this man has all the analogies I like this dude
Had to come back to this after the sloppy radio show. This guy rocks.
Thank you for great information I have been using journal bearing turbos for 10 years for street and most people think ball bearing is better than journal turbo . Thank you
The 360° journal bearings on the borg warner SXE turboes are top quality.
Total Respect for that man and his knowledge…
I was once told " If you cant explain it to a 5yr old, then you don't understand well enough to teach." This man is on point. No bs just facts and excellent analogies.
Very true. He’s great at this
This is awesome. Love listening to this guy. Combine his knowledge with Turbo Direct S.A and we might get somewhere with understanding!
Robert really knows his stuff! FP make some great turbos! 10yrs+ now running his fp Green & Black on my 2.2L Evo 9mr! solid power & reliability what more could you ask for... maybe a FP Zero haha
So refreshing to hear an intelligent person speak that can articulate themself this good !! Best video i have watched on UA-cam in a long time , no bullshit , just well explained facts
Thanks man that’s great to hear
This is exactly what I wanted to hear when I clicked on it. I love how I get real info especially when they answer questions at the same time wish I knew this guy give us ama with him please
I could listen to this guy all day long. Brilliant information thank you👍🏾
Robert is the man!!! his turbos are my ultimate goal for my build. Thanks for bring us this awesome and very informative tech knowledge Mitchell \m/
I have another question. What happens when you add a BOV to a bypass system? I have seen some guys adding a BOV to their factory bypass system and an intake. What effects will take place when you start vent to atmosphere instead of recirculating back into the intake. For context, I would like to add a BOV to my Veloster N but im not sure if it's a good idea.
Man, it's awesome to see Robert share the knowledge with passion and breaking it down to simple terms. I highly enjoyed this talk. Keep at it man, great content.
I'm planning to use a 35 year old Garrett turbo with a modern billet compressor wheel on my Volkswagen TDI. The turbine geometry is still the same that gets used today, the housing A/R is tight enough (0.36), and I don't have any need for ball bearings. I could use a VNT on it instead but the wastegated turbo will never have issues with sticking vanes. Old technology isn't always bad.
I could listen to this guy all day
By far the best video on UA-cam!! All because I love being educated!! This is great information for anyone that is boosted in any platform of motorsports
Best on UA-cam as a whole? Dang that’s a bold claim 😂
@@Stapleton42 best video by far!! Like I said before all because I love being educated. Anything that revolves around motorsports I'm glued to that video, and this video takes the whole CAKE 🎂 son!!
Very informative video. I like how you started it off with the clip of him talking about exploding turbos.
This guy was super excited to explain and give all of his knowledge he's probably seen and done some cool stuff to see limits of turbos
Hey, thanks for uploading this. I love finding little bits of information as I learn more about these amazing machines.
Love this guy!!!! He talks my language!!! I learned some new things as well!!
Great explanation sir! 👍🏼👍🏼
God bless ya !
thank you!
I was gonna let this vid pass. But auto play knows what I like. Glad to learn what this guys teaching
Dang...thank you Mitchell for sharing this video! Learned so much!! I was always told that journal bearing is oem/cheap application and ball bearing was the high end full race application. And holy cow just like that I am today years old 😂😂 Thanks to Robert too!!
That’s why I put it out there! My channel objective is to provide value through information “disguised” as entertainment lol
The type of distance learning we all needed!
This man. . Is a man who knows his turbos. That was easy listing.
This guy is a trip he is really knowledgeable
Robert sounds like an awesome intelligent guy!...ngl , love hearing him say terber cherger!
terberchergerrrrr
The only UA-camr that uploads everyday.😊👍
I do my best
Robert is my new favorite. We need more Robert. How do we find more Robert? Love the vids! Saw a dude yesterday in a LSXcalade shirt!!
Where 😂
@@Stapleton42 At an Eat the Streets event (small car show/food truck) at Wake Brewing in Rock Island, IL. Pretty close to Motion Raceworks.
this guy reminds me of my dad he probably coulda talked enough to give you about a week's worth of videos
I still got one more 😂
I cant wait.
Hell yeah might not be racing but you got to love the techie part of the world that explains it well and this man explains it real well 👍🏼👍🏼
I’m so glad you put up this video because it explained a lot. I was totally confused after watching yesterday’s video. I’m still learning about turbo’s and the current racing methods. Yes I’m a dinosaur.
For once my wife believed me about the education you get from "car stuff" on youtube after hearing him speak.
Great video once again, learned a lot!
Thanks man 🤟🏻
This was super cool to hear specifics about. I remember seeing when i was in highschool that the ball bearing turbos sounded better or something like that but i never thought more of them for any reason.
He knows what he's talking about! AND he has a killer Flow .... Im envious of both lmao!! thank you for the video!
Glad you’re here man 🤟🏻
Turbobob always has a good conversation with folks.
This just saved me a bunch of money on my tubro choice, great knowledge here
DN (diameter in mm times speed in RPM) limit on a bearing is a real concern when designing a turbo, or any turbomachinery that spins fast. If I remember rightly, for some ball bearings it is around 1.8 million. I was experimenting with air bearings, also. But these are a pain to design right, and require very high surface speeds, which works against the burst speed limit. However, the DN limit is in excess of 3 million; quite frankly, they have a low limit, before they 'take off'.
But the oil sleeve on the roller element bearing is to dampen rotordynamics vibration in general, not just for shock loads.
Journals have a natural damping characteristic of the oil film; rolling element bearings are naturally stiff. This makes them rough for any critical speed.
Great point on cooling, though. Differential thermal expansion is also often a killer. I once killed a micro gen set by inadequate cooling: shaft journal and the bearing sleeve 'grew' into one another. Fun times.
Fantastic Video !!! Really great this guy took the time to talk to you and explain this stuff and let you post the video.
I have a 2001 Silverado 3500 dually With a 496 and a GT 45 journal bearing turbo charger only running about five psi. I often get the “why not ball bearing they are better “responses to my set up. I agree marketing push is ball bearing as a better product but there is no reason a journal bearing will not be just as good in a correct application.
You just saved me $400 on the bearing option. I have a street care making 250whp, hopefully 300+ soon
That’s what we’re here for!!
Appreciate you showing interesting content.
Had no idea I’d like watching a guy talk about turbos. And a education to boot.
Since English isn't my first language...whats the conclusion now? Ball bearing turbos not best choice for my planned Audi RS3 (2018) Stage 3 but TTE700 instead or what? Maybe someone can summarise his words and give me advice? Thanks
This video was so helpful thank you for the great analogies and deeply explaining the benefits and cons to each. I believe this helped me decide the turbo to pick for my street build. Building a sohc 2.4l Nissan 240 sx power goal is 430whp , think after watching this i can save some money and go with a gt3582r journal bearing turbo as opposed to ball bearing ones i was looking at. Please if you have a different opinion on what setup i should run for hp goal I’m all ears!!
This guy is awesome. They had a shop around the corner from me in the early 2000s. Back then they had the dsm game on lock. Keep up the awesome content homie. 😎👍
Thanks man
I remember Kyle Texas days! GOOD TIMES!
I'm confused for the longest time whether I should go for journal or ball bearing turbo for my 3S-GTE powered street project car. Thanks to this video, I'm convinced enough to go for a journal bearing since I'm not planning to do crazy amounts of boost. I just want a fun and reliable project car that I can daily without having to worry about something breaking expensive if things go south (as in the case of ball bearing turbos which aren't almost always rebuildable unlike journal bearing turbos).
I guess ball bearing turbos have their place in proper applications. Regardless, any type of turbo should last as long as they're properly operated, matched, and taken care of. Cheers!
Thanks man I’m glad this helped!
Could also thermally insulate the hot side from the cold side, whether it was a longer distance between the two or modified oil passages in the turbo. Not very much heat transfer through the shaft itself, but the cartridge's bearing housing is what does most of it. The need for water cooling is a sign of inefficiency which I interpret the design needs to be changed
awesome breakdown my kind of technical video...Cheers to Robert for sharing his knowledge
I’ve always been a fan of journal bearing over ball bearing....(mostly because I’m cheap) and always been shamed for it... ball bearing have their place.... but IF they were the best, at that type of load, in that situation they’d be more widely used... but we use journal bearings in engines, for a reason. Keep them oiled, and They do work!!
I'm not sure I agree with Robert's comments, although I've got a lot of respect for what FP have achieved. Regarding the fluid film discussion-Air hockey uses air. This is a fluid of bugger-all viscosity which leads to zero heat, versus oil which is significantly higher and generates significant drag and heat. I've got a Forced Performance turbo in my Subaru at the moment and I'm happy with it for now. Not all of us would do something so stupid as upping the boost control solenoid duty cycle when their combination mysteriously drops boost. Whatever the case, I've got good results with my FP Green (not just on dyno but using GPS trace at the track to verify) and I'm looking forward to having a good crack with a ball-bearing Blouch sometime soon.
Sounds to me like you’re nitpicking. It’s an analogy for basic understanding of the principle
@@Stapleton42 the air hockey analogy is OK for explaining how the oil film works to avoid wear, but it's a bit misleading in other ways that also describe how sleeve-bearing turbos work. The air hockey analogy may be misinterpreted by some as leading to lower drag on the shaft when compared to BB turbos.
Man really.....your content keeps getting more information and more in-depth about race car and real life situations then any other channels on here...👏👏👏👏#staysaucy #stapelton42 #turbo8689
Your my 1rst now to watch now..
I make these videos to provide value. All of them. If you watch something of mine that didn’t benefit you or make you think then I didn’t do my job
@@Stapleton42 and I thank you so much for that..love getting notifications that you put a upload up..makes my day..so glad I saw you on pfi speed with the #lsxcalade on the dyno, cuzz man your channel is 🔥🔥🔥
Awesome information! Gonna have to watch that again.
Sick vid man. Good job for letting him share
Great insight and discussed stuff I would never have even considered!
my old boss raced superstock and the two things he always stressed with the racecars was when it starts up it needs to get up to temp. and after a weekend racing they fogged the engine with marvel mystery oil before loading it back in the trailer. all that stuff worked when the engine got torn down at the end of the year the valves, seats, rings and everything looked like it was just assembled
Marvel's mystery oil is absolutely nasty if you let it sit. It congels into almost a glue. I see no reason to ever use that product. If you want to fog the engine use ATF. It has amazing anti-corrosion properties and will not go off on you turing into glue.
Just subscribed to your channel a few days ago been following your IG for a while but I've learned more in these last 2 turbo videos than I knew when I had my pte boosted 5.3. Really liking what you got going on here man keep it up! Excited to see how Uncle Rob turns put each step of the way
thanks man thats awesome
I'm convinced, this guy knows what he is talking about! Dude should do a class.
Hes recorded a tech talk that was about an hour long .Search for Forced performance Tech talk. Also you can pick up alot of tech talk from the Power and Speed podcast episodes 68 and 155 and the Do it for a living podcast episode 10. All of these are on youtube.
I’ve always wondered this. Thank you for posting this
What a legend this guy is. 🔥💥
AL best stand aside this dude is indeed THE Turbo Yoda!
He just saved me an ass ton of money and more than likely the same amount of aggravation. Even going to hit up their site today with a huge thank you for getting this info out there. Great job on this one Mitchell. Thanks 🦅🇺🇸✌️
Edit: They have a Facebook and Instagram. Go drop them a huge thanks for this info.
Keep that young man talking
So I seen somewhere that bov block off plates are only rly safe for ball bearing and not journal bearing so is doing a bov block off plate safe for journal bearing
This guy rules! I feel like I just went to engineering school 🎉
how do you like a ball bearing vs journal on a motorcycle application? specifically land speed
Thanks Mitchell you're going to have to do another video with this guy
Robert is awesome, I love his analogies.
just bought an FP journal bearing turbo. cant wait to feel some boost
You’re gonna love it