NASCAR Transmission Teardown and How It Works

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  • Опубліковано 12 чер 2024
  • Transmission is a Gforce GSR
    4 Speed Dog box we use in our competition drift cars.
    More drift team videos:
    • Front Wheel Drive to RWD Conversion: • Drift Car Build FWD Co...
    • 1007 HP dyno pull: • Dyno Toyota Corolla RW...
    • 1000 Horsepower Engine Teardown: • 1000 Horsepower 4 Cyli...
    ****
    ABOUT PAPADAKIS RACING:
    The Papadakis Racing team began drifting in 2004 and is the most winning team in Formula Drift history, earning the 2015 title with driver Fredric Aasbo, as well as back­to­ back championship titles with driver Tanner Foust in 2007 and 2008. The Rockstar Energy Drink / Nexen Tire Toyota Corolla Hatchback is the latest competition build from the Hawthorne, California, based team.
    Team owner Stephan Papadakis is a legend of sport­ compact racing who began building his reputation in the 1990s with the first front-wheel ­drive, tube­-chassis drag car in the U.S. The team earned multiple records and championships in the discipline, turning in elapsed times and trap speeds previously thought unattainable in front­-drive drag cars. Papadakis' successes in front­-wheel drive were matched by his efforts in rear­-wheel drive when he campaigned a Honda Civic that became just the fifth car to join the NHRA's Sport Compact 200 MPH club.
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КОМЕНТАРІ • 1,1 тис.

  • @PapadakisRacing
    @PapadakisRacing  5 років тому +358

    What should I teardown next?

    • @PaulRozeboom
      @PaulRozeboom 5 років тому +20

      Yes! love these videos! Thanks for posting! If you got a V160 you'd be willing to tear down I'd love to watch as mine is leaking and i need to reseal it..

    • @The14541
      @The14541 5 років тому +26

      Aasbo's diff!

    • @mattk9438
      @mattk9438 5 років тому +36

      I've always wanted to understand and see a comparison of a gear type and clutch pack type LSD.
      And a Direct shift/dsg gearbox.
      And maybe the new Supra? How it's been built/it's underpinnings etc.

    • @latsismotorsport9700
      @latsismotorsport9700 5 років тому +3

      very nice exlpaining video If you can show us next time how diff works it will awesome

    • @KrakenEP
      @KrakenEP 5 років тому +10

      tear down a 4 piston k24 block!!

  • @randy438
    @randy438 5 років тому +494

    "We'll get that later"
    Famous last words

    • @tommynobaka
      @tommynobaka 4 роки тому +11

      I say that, end up not finding whatever I lost until couple months later when I don't need it at all.

    • @rosegold-beats
      @rosegold-beats 4 роки тому +8

      Rathanak's Life i got this rare skill of making parts dissappear out of my hand and making it reappear 10 years later

    • @Billy28376
      @Billy28376 4 роки тому +3

      Right up there with hold my beer and watch this.

  • @MScotty90
    @MScotty90 4 роки тому +327

    This video told me more about how a transmission works than I've learned in my entire life.

    • @trexmidnite
      @trexmidnite 4 роки тому +6

      Now you have to worship his giant balls

    • @Velocitist
      @Velocitist 4 роки тому

      What a mood

    • @nickyeayea7257
      @nickyeayea7257 2 роки тому

      That statement doesn't make much sense

    • @lobuxracer
      @lobuxracer 2 роки тому

      Rebuilding my Getrag 233 (aka Toyota V-160) taught me more than this video by a long shot. Prepping motorcycle engines for racing also taught me a whole lot about "dog" boxes, shimming gears, and backcutting straight dogs. The dogs in this box are undercut as anyone would expect for something at this level of competition, but doing this with inverted cone stones by hand on both dogs and holes is a painstaking effort.

    • @prathameshbhapkar4738
      @prathameshbhapkar4738 Рік тому

      it feels like i am a kid again opening everything to find out how it works 😂

  • @WarpedPerception
    @WarpedPerception 4 роки тому +253

    I just binge watched your entire channel, you tear down everything...I love it !

  • @kyle8971
    @kyle8971 5 років тому +280

    Drops almost as many things as Linus Tech Tips, but since they are car parts...they don't break as easily.

    • @Leviathan431
      @Leviathan431 4 роки тому +10

      @dyy Fethiiyhn I disagree! I don't know if I'd be classified as a "nerd" but I enjoy tinkering with both cars and computers

    • @commandohazelnuts
      @commandohazelnuts 4 роки тому +7

      @@Leviathan431 I also tinker with cars and computers. I made a laptop fan bearing for my laptop last night because it was noisy, and I'm supposed to help my friend install heim joints on all four quarters of his suspension next week.

    • @Leviathan431
      @Leviathan431 4 роки тому +16

      @@commandohazelnuts It's fairly rare to find people interested in both, but I don't think they're too dissimilar.
      My PC build is just as unique and personal as my car is.

    • @uwot9021
      @uwot9021 4 роки тому +3

      @dyy Fethiiyhn bit narrow minded but aight

    • @bongtian
      @bongtian 4 роки тому +5

      @dyy Fethiiyhn Nerds (ie. engineers) are the ones that design cars, my guy :)

  • @paulgorowitz4007
    @paulgorowitz4007 4 роки тому +14

    I love how he says “go ahead and...” like we all got a G Force nascar tranny laying around

  • @utkn
    @utkn 5 років тому +15

    This is the third video I've seen from you (first two being 2JZ teardown and rebuild) and you're very quickly on track to become my favorite UA-cam channel.

  • @Barnacules
    @Barnacules 5 років тому +26

    I love this guy, subscribed!

    • @thenoblehacker9111
      @thenoblehacker9111 3 роки тому +1

      How does a guy with a million subs not have any comments on a post

  • @renatotesta902
    @renatotesta902 5 років тому +5

    Your videos are incredibly satisfying. Very concise, no distractions and clear info. I also love how you don't edit out the little spills you had, it's sincere and honest. Even the best have imperfect moments at times. Keep it up, I'm a definite supporter of Papadakis Racing!

  • @travisk5589
    @travisk5589 4 роки тому +7

    I couldn't care less about cars or racing. But I love knowing how things work and machinery. I like to see how the horsepower is made. I am glad I found this channel. Everything is basic yet complex.
    Thanks for making these videos.

  • @jakeeclouse4799
    @jakeeclouse4799 5 років тому +1

    What a badass transmission.

  • @Barnacules
    @Barnacules 5 років тому +39

    I drove a Pro Drive rally car with a dog box on it with straight cut gears and it was very loud but you could just ram it into gears without synchros by just coming off the throttle a bit. If it wasn't for the noise they make I would love to run one in my street STI.

    • @TboneSTEAK111
      @TboneSTEAK111 5 років тому +7

      You can run dog boxes in street cars, the issue is every shift you make you have to shift with 100% force. The dog teeth will round off and engagement doesn't feel as quick or easy.
      But STI transmissions are stout, there should be no reason to run one under 800hp if you aren't drag racing every weekend. Even a dog box WRX transmission isn't even half as strong as a stock STI transmission, dog sets aren't always better. I build evo/subaru transmissions every day and it is a very common misconception.

    • @MattFromWork
      @MattFromWork 5 років тому +3

      Fancy seeing you here barnacules

    • @Silentdude__
      @Silentdude__ 5 років тому +2

      I used to watch your 3D printing videos and now I'm much more Into cars, I'd never expect you to drive an STI. Good choice 👍🏻

    • @jimsz0100
      @jimsz0100 5 років тому

      Thanks, that was a pretty good answer to my question to tabcobra

    • @dnmoscato92
      @dnmoscato92 2 роки тому

      I went to your page but there is no race car videos? Why haven't you posted your car on your popular channel?

  • @sardengineering
    @sardengineering 5 років тому +5

    Fantastic idea and definitely a great initiative for the enthusiast community who wouldn’t ever have an opportunity for such a guided and equally informative introduction to these gear boxes 🙏🏼

  • @corporalpunishment1133
    @corporalpunishment1133 5 років тому +3

    Excellent channel and your production is awesome, simple straight into it no music no tattoos no beard no ego just showing us some cool gear. Thanks.

  • @177SCmaro
    @177SCmaro 4 роки тому +2

    I'm actually a little impressed how simple they are which is what you want in racing. No unnecessary parts.

  • @jqderrick
    @jqderrick 3 роки тому +1

    I like that you left the parts dropping or mistakes in this video. It humanizes it and it's awesome to see someone as experienced as you still drops things like a newbie would!

  • @DriftSquid
    @DriftSquid 5 років тому +10

    Awesome video mate, thank you. Im about to pull my own GSR box apart and look over it! This is a huge help thank you

  • @mugshotmarley
    @mugshotmarley 5 років тому +312

    Top notch content. Simple, to the point & informative. Thanks for sharing.
    Btw, Stephen, what's your thoughts on the new Supra? Although there is a bunch of internet pitch-forking, I think there's gonna be a high demand along with local dealers adding on "Its a Supra" 10k tax.
    Being that you guys work closely with TRD/Toyota in Formula Drift, is there a chance that we'll see Aasbo piloting a Papadakis Racing Toyota Supra in a year or two?

    • @consciouscool
      @consciouscool 5 років тому +9

      Chiming in, I hate internet pitchforking I think Toyota took the success of the Subaru twins the wrong way. Everyone wanted the '86, they made a pure reasonably priced car close to it's roots even though it's boxter engine is a pain is some areas but with just enough to HP to have fun. BMW reputation lately with deteriorating obscenely priced plastics, gm sourced transmissions and massive cost cutting have gutted that brand. Toyotas reputation or over built modifyable engines was the MAIN reasons this car would've sold. Once this car pushes $70k after the stealer tax, that opens up A LOT of other options. They needed to go backwards towards lighter and powerful AND that overbuilt engine. I don't think the BMW engine will cut it. Driving dynamics might be stellar but then why not buy a Subaru twin? They basically competed with themselves

    • @blakestone75
      @blakestone75 5 років тому +3

      That’s what I don’t get. Why Toyota, known for unimpeachably reliable engines, went to Subaru boxer ( albeit a fine enough engine ) for the 86 and now BMW? It’s the heart of the car! And Toyota isn’t putting their hearts in their cars.

    • @MrRedstoner
      @MrRedstoner 5 років тому +13

      @@blakestone75 At least with the BMW Toyota apparently did a LOT of reliability testing and redesigned whatever failed, so the engine should be up to Toyota reliability standards.

    • @truantray
      @truantray 4 роки тому

      @@MrRedstoner hmmm...I doubt it, they still have a plastic manifold with a intercooler bonded in. It's designed to fail, and designed to cost a fortune to replace, which is now the goals of BMW R&D.

    • @truantray
      @truantray 4 роки тому +2

      the problem with the 10K tax is people will just logically order a C8 Corvette. Thank GM for keeping Supra prices stable.

  • @jmurphy1973
    @jmurphy1973 5 років тому +2

    The sound of a straight cut gearbox is music to my ears. Great video.

    • @MrElpajita
      @MrElpajita 4 роки тому

      jmurphy1973
      Real question.
      How is the sound? Is the whining you hear in race cars? A little similar to a differential going bad?

  • @hhattingh
    @hhattingh 2 роки тому

    Ok...now I am hooked. Only saw a tool box tour once and that was good, but now....pulling things apart and showing how it works. Next level.

  • @ATLRIOT
    @ATLRIOT 5 років тому +18

    How are you not in the millions of subs? Your vids content is so clean, clear, and well thought out. Keep it up Steph

  • @TheCrusherOfficial
    @TheCrusherOfficial 5 років тому +14

    thats a nice video !! Tear down next a dragster small block engine.

  • @wallebo
    @wallebo 3 роки тому +1

    Love the format of no bs and detailed video. Kudos for the hard work that goes into producing the content. Also love the way you show what really happens like when you dropped the spring. No pretentiousness. Well done.

  • @dnap2526
    @dnap2526 4 роки тому +1

    This is the absolute best transmission video I have ever seen on UA-cam and I have seen a lot of them whereas other videos are pretty good this one is just so perfectly explained and edited that I actually learned something so I want to thank you for what you're doing

  • @Sodium_Hypobromite
    @Sodium_Hypobromite 5 років тому +128

    *plops transmission down*
    I'm snuffleupagus and today we're gonna tear this transmission down

  • @forgotcr
    @forgotcr 5 років тому +102

    Next, Formula One Gearbox

    • @13anomalous16
      @13anomalous16 5 років тому +12

      Channel named Driver61 tore down an old gearbox out of an old 1997 Jordan. No very recent tech, but the same layout and mechanism.

    • @SocietyUnplugged
      @SocietyUnplugged 4 роки тому +3

      F1 gearbox isn't that much different. It's straight cut, semi-automatic but more gears. It's only shifting gears faster than a DCT which is quite remarkable.

  • @Ybsjek
    @Ybsjek 5 років тому +1

    Love the transparency your team has on these videos. It’s refreshing.

  • @codymurphy9459
    @codymurphy9459 5 років тому +1

    I just stumbled upon your videos and wow, this is my kind of entertainment. I have such a passion for going fast and getting sideways and I love to see it all broken down piece by piece. I’ve been wrenching for years and I love it every day. Thank you for the good content. Subscribed!

  • @kurianauto645
    @kurianauto645 5 років тому +10

    Thank you for nice explanation about this transmission system.

  • @FOREST10PL
    @FOREST10PL 5 років тому +3

    Thank you very much! I finally understand what dog boxes really are.

  • @Prairiedrifter1
    @Prairiedrifter1 5 років тому

    Holy smokes I’ve never seen such a good explanation. This shows you don’t need fancy and confusing graphics or terminology to show the concept.

  • @Pulsatyr
    @Pulsatyr 5 років тому

    Hands down, the best transmission intro video ever. No animation or complex explanations, just actually showing how it works. You should consider a video "school" on mechanics, like the military has attempted. You would succeed where others have failed. Watching something work as the basic principles are explained prepares one for the more complex or in depth concepts to come. I learned best with hands-on experience, but this was just as clear. Bravo Zulu, we'll done!

  • @merlinious01
    @merlinious01 5 років тому +13

    Helical gears are stronger than straight cut gears.
    Straight gears are used because they dont produce axial loads like helical gears, so they don't require the high strength axial thrust bearings.
    This greatly simplifies crankcase design, decreases cost, and most important decreases weight.

    • @manuelcircelli511
      @manuelcircelli511 5 років тому

      And also the cut gears permits the driver to shift without using the cluth, that's mean much smooth and faster shifting.

    • @ChefofWar33
      @ChefofWar33 4 роки тому

      Semantics.

    • @rolyf100
      @rolyf100 4 роки тому +1

      Bryce Peters not at all! There are real differences and real reasons for choosing one over the other.

    • @PabloGonzalez-hv3td
      @PabloGonzalez-hv3td 4 роки тому

      @@ChefofWar33 - No it's the biggest misconception surrounding transmission design straight cut gears themselves are weaker

    • @YungEagle3k
      @YungEagle3k 4 роки тому

      @@manuelcircelli511 true, drivers don't use the clutch. brake and gas all they need lol

  • @jimscobie6646
    @jimscobie6646 5 років тому +17

    Very cool. I run two CNC gear shaping machines. I have seen and made so many transmission parts without knowing what they do.

    • @TommyZ9448
      @TommyZ9448 5 років тому

      I rebuilt transmissions along time myself. And I wanna learn what you do! Lol

    • @jimscobie6646
      @jimscobie6646 5 років тому +2

      @@TommyZ9448 ....we are hiring. Lol

    • @TommyZ9448
      @TommyZ9448 5 років тому

      Jim Scobie where at? I do live in southern Cali. And I’m working overseas but will be home in a year or so. Lol. Planned on doing a CAD program online. Will that be beneficial for me? I’m sure when I go home I’ll work on cars for awhile. But my area has a lot of opportunity for CnC jobs. 🤔

    • @jimscobie6646
      @jimscobie6646 5 років тому

      @@TommyZ9448 ...i am near Detroit.

    • @TucsonDude
      @TucsonDude 4 роки тому

      That's not a normal transmission. It's a sequential "crash box" specifically for race applications. A UA-camr named Engineering Explained has some real vids on a normal manual transmission. Look him up.

  • @silvertip69
    @silvertip69 4 роки тому

    This guy's videos are always right to the point, no BSing around. Thanks

  • @Lectwar6
    @Lectwar6 4 роки тому

    this is by far the most entertaining, most informative, and most thorough auto channel I have found on youtube. The professionalism and humble attitude of Papadakis is a cherry on time.
    Subscriber for life, no doubt.

  • @Alan1.8
    @Alan1.8 5 років тому +200

    Steph, you're like the bald one from Brazzers only on the technical side =D

    • @bl00dh4nd4
      @bl00dh4nd4 5 років тому +11

      Johnny sins I just noticed too 😂

    • @Stig007
      @Stig007 5 років тому

      lol ohh wow

    • @kimmer6
      @kimmer6 5 років тому +51

      Johnny Sins always lubes the drive shaft so it wont tear up the lip seal. And yes, he uses handcuffs to help keep the shaft from bending. I've seen him tear apart rear ends, too. I consider his videos training videos and hope some day I'll be as good as him if I practice enough. He has the only tool not made by Snap On.

    • @basedgodstrugglin
      @basedgodstrugglin 5 років тому +1

      Алексей Антушев he’s also got a UA-cam channel. He’s a cool dude. Sins TV

    • @woodwardjr
      @woodwardjr 5 років тому +3

      @@juliobello4561 HAHAHAHA

  • @panther105
    @panther105 5 років тому +4

    Don't know transmissions at all but wondering what parts of the actual case (magnesium vs aluminum) will wear out over time....short of an actual self destruction of the bearings or gears of course. Neat video. You explain things really clearly

    • @alexjohnward
      @alexjohnward 5 років тому +2

      fatigue cracks most likely, also worn bearing apertures if replaced often.

    • @rightwingsafetysquad9872
      @rightwingsafetysquad9872 5 років тому

      Heat will warm magnesium faster than aluminum. Also, bits of road junk getting tossed up case damage.

    • @e-curb
      @e-curb 5 років тому +1

      @@rightwingsafetysquad9872 ... The heat generated by the gears is the same, regardless of the metal of the case. The temp of a mag case will be the same as an alum case.

  • @josuemckoy4000
    @josuemckoy4000 5 років тому +1

    Best 8 minutes of my life. literally I learned a lot about the gears in the ratios are watching this video you have a new subscriber keep up the good work. Can't wait to binge-watch your whole channel.

  • @elitedavidhorne8494
    @elitedavidhorne8494 5 років тому +1

    Loving the engine and gearbox content lately. Tbh I was glad to see that he's human after watching him drop a couple of parts. I work on the line at an engine assembly plant and this guy is next level.

  • @Leofred2000
    @Leofred2000 5 років тому +8

    Are you building the new Supra now?

  • @AgiDaKinG
    @AgiDaKinG 4 роки тому +23

    I wish I could carry my transmission around like that, almost gave myself a hernia trying to move my 4l80 lmao

    • @Thekidsinafrica14
      @Thekidsinafrica14 4 роки тому

      Lmao yeah them Chevy transmissions heavy af

    • @rally2727
      @rally2727 4 роки тому

      Dude... that's a race 'box lol ofc it's that 'light'

    • @dlozza2000
      @dlozza2000 4 роки тому +1

      James Davis someone’s mad 💀

    • @nickyeayea7257
      @nickyeayea7257 2 роки тому

      Standard shift trans are typically lighter

  • @woodwardjr
    @woodwardjr 5 років тому

    Thank you for communicating in a way that beginners understand what the parts are and what they do.

  • @bonprez9981
    @bonprez9981 4 роки тому +1

    You deserve much more light on your videos

  • @TheMofoManiac
    @TheMofoManiac 5 років тому +19

    That was all nothing but machining porn for me. I will be working for a very long time for one of those.

  • @nickyle7902
    @nickyle7902 5 років тому +5

    show us how u are to build the new supra for Aasbo to drift and will u keep the 4banger or use the new/old 6 cylinder 2turbo from bmw. keep up the vidz your awsome

    • @athomedetail6512
      @athomedetail6512 5 років тому

      Blasphemy! Idk why yota is using a BMW powerplant. Makes me sick

    • @alisioardiona727
      @alisioardiona727 5 років тому

      @@athomedetail6512 because it's just better. Stop hatting on the superiority of BMW.

  • @JasonSpiffy
    @JasonSpiffy 3 роки тому

    I have no clue about racing in general but you always explain with ease and I feel like I learn something each video I watch. Thanks!

  • @ali92124
    @ali92124 3 роки тому

    watched a couple of videos on this channel. Great explanation without any fluff. Subscribed.

  • @mjdekock9410
    @mjdekock9410 5 років тому +3

    When you try sooo hard not to let a bold or spring fall then it falls😂

  • @ChaseRacebox
    @ChaseRacebox 5 років тому +4

    I rebuild manual gearboxes myself but I’m curious what you inspect on the dog box transmissions? Obviously there aren’t any synchronizers to wear out. Do you find the drive teeth on the gears worn out usually? Or do you just replace the dog engagement sliders to prevent future damage?

    • @peteb3091
      @peteb3091 5 років тому +2

      Majority of the dog boxes ive built for the racing guys and come back for a overhaul after a year or so.. the main problem ive found is the quality of the gears! The majority of them have gone through the case hardening on every gear plus laygear! For how much the customer pays for the Quaife gearset alone and the state of it when it comes back for a rebuild is a joke!

    • @mattnsac
      @mattnsac 5 років тому

      If you look, you can actually see that the pocket on the dog he showed up close was deformed at the root of the lug.. Obviously the other part is looking for tooth wear and of course, bent shift forks.

    • @Jl4zio
      @Jl4zio 5 років тому +3

      I work on motorcycles and they use dogs for engagement of the gears, a common issue is dogs rounding off from poor shifts and the rounded dogs act like ramps and pop the gear out of engagement. I see it a lot on the lower gears like 1st and 2nd. also the shift forks being bent can cause the rounding to start happening because its not pushing the gear firmly in enough. Transmissions meant for high engine power will use undercutting on the fixed gears to make sure there is more positive engagement to prevent dogs from not engaging enough and start getting rounded.

    • @ChaseRacebox
      @ChaseRacebox 5 років тому

      Jl4zio Yeah I see that in Automotive gearboxes too. I’ve built dog engagement gearboxes for customers but I don’t ever get any in for maintenance, so I didn’t know what would wear first; the lugs or the drive teeth.

    • @Kashed
      @Kashed 5 років тому

      Usually it’s because you sheer the teeth on one of the gears.

  • @petergeralis3725
    @petergeralis3725 4 роки тому

    I like how you laugh at yourself, not a cocky guy like Joel Granas

  • @MrBigjahn
    @MrBigjahn 4 роки тому +2

    One of the best explanations I have ever seen.

  • @invsiblshowercurtain
    @invsiblshowercurtain 5 років тому +17

    I wish NASCAR would market the fact that they use manual transmissions. Modern race transmissions with paddle shifting blow these out of the water, but it is still impressive to watch a skilled driver shift and work the clutch. Even if it's not true, NASCAR could assert in their marketing that their drivers have more skill and their sport is a truer racing sport. Obviously it would also be nice if they raced fewer oval tracks otherwise I suppose no one really cares about the transmission since they hardly shift.

    • @65Red
      @65Red 5 років тому +1

      You do realize that a good portion of nascar tracks aren't just oval tracks right? Watkins Glen is raced at numerous times during every season and that has definitely got more than 4 turns lol.

    • @invsiblshowercurtain
      @invsiblshowercurtain 5 років тому +1

      @@65Red Yea I know there are of some tracks raced that aren't ovals. I said it would be nicer if they races fewer ovals

    • @Dauntless.steadfast.fortitude
      @Dauntless.steadfast.fortitude 5 років тому +1

      FYI there's not one "STOCK" about Nascar. They need to rename it, rebrand it. Whatever, but please don't call it Nascar or stock car. It's not symantics, it's B.S.

    • @invsiblshowercurtain
      @invsiblshowercurtain 5 років тому +5

      @@Dauntless.steadfast.fortitude What are you talking about? Obviously they are not stock cars in the sense that can go buy one at a ford dealership. It hasn't been that way in many decades. Stock-car is a generic term for the vehicles they race. Don't call them Nascar or stock cars?? So what are we supposed to call them. Quad wheeled racing chariots? Would that be better?

    • @Dauntless.steadfast.fortitude
      @Dauntless.steadfast.fortitude 5 років тому +1

      @@invsiblshowercurtainmy point exactly, Not stock cars since late '70's early 80's...so rename it, up grade it...you made my point for me. I'm sorry if I hurt your feelings, didn't mean to.

  • @muchmore344
    @muchmore344 5 років тому +14

    staight cut gears are not per say stronger. most of the time bevelt gears are stronger because more teeth are engaged at the same time. however beveled gears create a lot of additional forces.

    • @MrMattydavee
      @MrMattydavee 5 років тому +2

      Axial load

    • @muchmore344
      @muchmore344 5 років тому +3

      @@MrMattydavee jep axial loads. those are quite hart to deal with. so in a race car aplication a light gearbox is nice. but to make it light they have to remove material. that makes the box itself less stiff. that in turns causes missaligment in the gears. and staight cut gears can deal better in those conditions.

    • @65Red
      @65Red 5 років тому +6

      Lots of research shows that straight cut gears are stronger due to the teeth actually being thicker for the same ratio. With helical cut gears, the teeth have to be made with less material to mesh properly.

    • @Borals
      @Borals 5 років тому

      Steven Boyd not how it works but okay

    • @65Red
      @65Red 5 років тому

      craze09 goes against every reason that people use straight cut gears but ok. If angle cut gears were stronger, there would literally be no reason to use straight cut

  • @oceanman6623
    @oceanman6623 4 роки тому +2

    I like how he's giving us instructions on how to take a nascar-grade transimission apart as if any of us viewers are experienced mechanics but we're struggling real hard with tearing it down.

  • @SoylentGamer
    @SoylentGamer Рік тому

    Dog gears are so cool. They are designed to be blown up so you can shift as fast as possible. What a cool piece of kit.

  • @austinsommer5684
    @austinsommer5684 4 роки тому +3

    I am honestly surprised there is no overdrive on these just a 1:1 ( direct drive )

    • @matthewhartup941
      @matthewhartup941 4 роки тому

      No overdrive needed in a nascar, opbviously built for WOT and high revs.

    • @chuckgilly
      @chuckgilly 4 роки тому

      Actually, you can make it an overdrive by setting up 3rd gear as an overdrive, the shift linkage is changed for 3rd & 4th, 4th 1:1 becomes 3rd and 3rd becomes 4th overdrive, The gear sets are interchangeable as underdrive or overdrive. If this makes your brain hurt, I am sorry.
      From Russia, with LOVE.

  • @howardechols2553
    @howardechols2553 5 років тому +4

    How would these actually last for a daily driven vehicle and how is the drivability of these

    • @seanykinz
      @seanykinz 5 років тому +1

      This unusual question ran through my head as well... I wonder what it would be like in my daily driven gto?

    • @lincolngolladay
      @lincolngolladay 5 років тому

      @@seanykinz a nightmare. it's a dog box transmission. these suckers are built for high horsepower, not as small as a daily driven car would have. you have the physically smack these puppies into gear, because of those dogs. they are very hard to drive with in stop and go traffic because you have to run through the gears, as this specific one is a sequential gearbox. some are a 4 speed H-gate, where it's a little easier to run on a daily driver (I have it one my s14, it's not bad). to conclude, a sequential dog box tranny such as this, would be a nightmare, and won't work well on a daily, mainly because of the relatively low horsepower and different drive train.

    • @PatricioGarcia1973
      @PatricioGarcia1973 5 років тому +2

      Just like a regular gearbox, except with stronger gears. With only 4 gears MPG will suffer, but they work just like a stock one. Advantages are availability to change gear ratios. They are like an update of the Muncie 4 speed of the 70s.

    • @PatricioGarcia1973
      @PatricioGarcia1973 5 років тому

      @@lincolngolladay nascar boxes are H pattern, no fancy techno sequential.

    • @jeddi.k8564
      @jeddi.k8564 5 років тому +1

      Really bad drivability having straight cut gears instead of helical gears makes the car jerky and violent while shifting or taking off and the ratios are not suitable for street use at low rpms and speeds plus these transmission like much of the parts you'd find on a track or race car are basically consumables made to be used worn out and replaced so it wouldn't be reliable

  • @Floz000
    @Floz000 5 років тому +1

    Thank you so much for this video, it has explained so many things that never quite seem clear in other sources. Bloody great video

  • @prometheus575
    @prometheus575 5 років тому +4

    *Q. What do you call it when you blow up a dog-box on the track?*
    *A. A cat-box, because you have to clean all the litter from the track.*

  • @WelLRoundeDSquarE
    @WelLRoundeDSquarE 5 років тому +3

    many folks may not know that is a constant mesh transmission, where the gears never disengage, only the dogs, via the sliders. Most factory transmissions the gears fully disengage or engage every shift. This style is most common in motorcycles, as in all motorcycles use this style. Would love to see a sequencial box tore down, if only you used them.

    • @bman12three43
      @bman12three43 5 років тому +6

      Nearly every factory manual transmission is a constant mesh. The only difference between these gearboxes and the gearboxes in street cars is the shape of the teeth (straight vs helical) and the way gears are selected (dogs vs synchros). Synchros serve the same purpose as the dogs do, only they are much smoother and you don't need to rev match, but you do have to use the clutch.

    • @WelLRoundeDSquarE
      @WelLRoundeDSquarE 5 років тому

      @@bman12three43 you are so wrong. factory transmissions disengage. the syncros are brass, and cut so the gear trying to engage it connects with syncro, that has a friction clutch inside the steel gear. it then causes the steel gear to match speed of other gear which allows them to ebgage without grinding. when you have constane mesh and dogs, you have no need for syncros. you contradict yourself. Don't post your opinions, it is a dservice to present opinions as facts. I've been working on cars since the 60's. Chevy's Rock Crusher, the M22, in all performance cars in the 60's and early 70's had straight cut gears and no syncros. You had to use your whole upper body to "bang" gears or rpm watch with throttle, or they wouldn't engage and they would grind the corners off the teeth. go take apart a manual cars trans, and a motorcycle trans and tell me they are the same. I've rebuilt at least 10 car and 50 bike transmissions.

    • @bman12three43
      @bman12three43 5 років тому +4

      @@WelLRoundeDSquarE I don't think you quite understand what I am saying. Let me read you some lines from Wikipedia: "The gears were typically engaged by sliding them on their shafts (hence the phrase shifting gears), which required careful timing and throttle manipulation when shifting, so the gears would be spinning at roughly the same speed when engaged; otherwise, the teeth would refuse to mesh. These transmissions are called sliding mesh transmissions or sometimes crash boxes, because of the difficulty in changing gears and the loud grinding sound that often accompanied" This is where the gears are not meshing and you force them to mesh right? Now let me read another line: "Newer manual transmissions on 4+-wheeled vehicles have all gears mesh at all times and are referred to as constant-mesh transmissions, with "synchro-mesh" being a further refinement of the constant mesh principle." Hmm, gears that mesh at all times, that are called constant mesh transmissions? Go ahead and send me a picture of a synchronized manual transmission where the gears are not meshed at all times. Here are some examples: i.ytimg.com/vi/vOo3TLgL0kM/maxresdefault.jpg
      Well look at that, all the gears are in mesh.
      i0.wp.com/www.econofix.com/mtrans2a.jpg
      Here's another one, still in mesh.
      ua-cam.com/video/vOo3TLgL0kM/v-deo.html
      Oh heres a youtube video where you can see all the gears meshing constantly.

    • @WelLRoundeDSquarE
      @WelLRoundeDSquarE 5 років тому +3

      @@bman12three43 I stand corrected. Thank you for forcing me to look into this. I am humbled and always greatful to learn . I appreciate your efforts to make me research a bit. Peace to All

    • @WheatMillington
      @WheatMillington 5 років тому +1

      Huh? Every transmission in almost every manual car is constant mesh.

  • @birminghamevan
    @birminghamevan 4 роки тому

    I could never understand how transmissions worked because I never got a good explanation and this just cleared up everything! Thank you!!

  • @kwesitawfiq403
    @kwesitawfiq403 5 років тому

    Ive seen this explained many times but this is the first time i understand the shifting. Thanx dude!!

  • @Primoz.r
    @Primoz.r 4 роки тому +4

    Straight cut gears aren't stronger, helical gears should be stronger due to more teeth being in mesh with each other. Plus they are quieter because of that.
    Where straight cut gears help is because you don't have axial force acting on the shafts, like on helical cut gears, you don't need the casing to be as strong axially, only radially between the two shafts. That's why a straight cut upgraded gearbox (in factory housing) for a road car is stronger, it doesn't open up the casing.

  • @erswnn
    @erswnn 5 років тому +4

    Stock cars. Not single thing from the factory.
    So what happens if i put one of these in a Ford or Chevy? Good old V8 whatever.

    • @tabcobra
      @tabcobra 5 років тому

      Eric S You would just have a 4speed Ford or Chevy.

    • @erswnn
      @erswnn 5 років тому

      @@tabcobra And that's a bad thing? I'm a simple guy.

    • @tabcobra
      @tabcobra 5 років тому

      Eric S Didn’t say it was bad at all. Heck, I have a 4 speed toploader behind a big block Ford in my 427 Cobra.

    • @jimsz0100
      @jimsz0100 5 років тому

      @@tabcobra I didn't see any synchronizers in there, how would that transmission be as a daily driver?

    • @tabcobra
      @tabcobra 5 років тому

      @@jimsz0100 It would be fine, but just four gears...

  • @jif8802
    @jif8802 5 років тому

    Transmission really is much more straight forward than I thought, thanks.

  • @DrVink86
    @DrVink86 5 років тому

    Thank you for this. I've watched a bunch of videos and read many things online but your video helped me finally understand what was going on in a manual transmission.

  • @farmyardfab
    @farmyardfab 5 років тому +3

    Straight cut gears are not stronger

    • @alexmaclean1
      @alexmaclean1 5 років тому +1

      You're right, but because of the reduced parts it's overall more reliable when abused and the gears are a little bigger and wider than they otherwise could be. That may be what he meant but I'm not sure.

  • @valdasaa
    @valdasaa 5 років тому +53

    Wrong. straight cut gears are not stronger! they are same or even weaker than helical cut gears. They have smaller contact pattern, never wandered how can they be stronger? Only one difference that straight cut gears don`t have axial load while turning. Lower forces means smaller bearings, smaller gearbox case, lighter more compact gearbox. Lighter car = faster car. Downside they are loud, but who cares its a race, people want to see loud cars :) So that`s why you see helical in every day car and straight gears in race cars.

    • @joneskey3950
      @joneskey3950 5 років тому +22

      This guy has never had a race car in his life. Let me guess you read that in the textbook, ASE manual transmission test. Theory doesn't always apply in real life my friend.

    • @valdasaa
      @valdasaa 5 років тому +34

      @@joneskey3950 let me guess physics does not apply to race cars?:)

    • @thomgt4
      @thomgt4 5 років тому +25

      He's right, he could have said it more subtle though. A "common" failure mode in gearboxes with helical cut gears is gearbox case breakage or thrust bearing failure

    • @cmkm54
      @cmkm54 5 років тому +1

      Well then wider tires must grip better right.... wrong surface area has nothing to do with grip it is determined by the pavement surface and the tire compound.

    • @cmkm54
      @cmkm54 5 років тому

      To be fair tho yes they have less axial forces so the transmission as a whole is stronger not just the gears

  • @2loco
    @2loco 3 роки тому

    This fella is a genuinely nice guy and a brilliant mind! Thanks for your videos friend.

  • @tommozzarella2671
    @tommozzarella2671 5 років тому +1

    appreciate all your awesome and informative video's Stephen!
    Truly a class act in every fashion, as all too often engine builders will only show/explain the inner mechanics by literally talking - no video..... which I can understand for obvious reasons - competition!
    thanks 👍👍

  • @geoffbennett9069
    @geoffbennett9069 5 років тому

    Excellent explanation and tear down. Thank you for taking the time to do a quality video.

  • @twcaldwell1951
    @twcaldwell1951 5 років тому +2

    coming from the transportation field having worked on passenger car, light and heavy duty truck transmissions, I found this video very interesting and informative. I have not had the privilege of working on off-road transmissions. thank you for the informative, graphic representation.

  • @senor3187
    @senor3187 3 роки тому

    I watched this before, I'm watching this again. I enjoy your teardown videos Mr. Papadakis.

  • @kearneyboy
    @kearneyboy 5 років тому +1

    Simple but bombproof design.
    Top notch workshop BTW👍

  • @Piercemxpx
    @Piercemxpx 3 роки тому +1

    Ps I love you for these videos, you’re an amazing teacher & the camera work is exceptional

  • @jeffreystaley5266
    @jeffreystaley5266 5 років тому

    Nice transmission...thanks for the crisp description of how it works and comes apart.

  • @sndesigner01
    @sndesigner01 4 роки тому

    I really enjoy your channel. You are an excellent teacher and make these complex machines make sense to the average person. I also like how clean your shop is and how orderly you are with your gear. Thank you!

  • @benjamincolumbus
    @benjamincolumbus 5 років тому +1

    Beautiful transmission! Thanks for the in-depth look

  • @jeffbohn2576
    @jeffbohn2576 5 років тому +1

    Thank you for this little walk around w/tech verbiage :) Love this Buddy!

  • @split150
    @split150 5 років тому

    Really awesome content, explanation, and close ups! The dog rings and gears being separate for cost/rebuild reasons is beyond clever. Thanks.

  • @mrfumetsu
    @mrfumetsu 5 років тому

    I'm 35 now...I used to follow you in the Honda scene when I was 14. I still wrench on my cars today and absolutely love seeing your tear down DIYs this day and age. It also brought me great joy when you dropped the spring into the transmission, not to spite you, but because of the mutual feeling of pain shared...good to see the everyday garage mechanic struggles are still real at the top :p

    • @davegt27
      @davegt27 5 років тому

      yeah I wonder how many people realize he is a drag racing legend from back in the day

  • @casualobserver620
    @casualobserver620 2 роки тому

    When I think about the opportunity I passed up to work on these transmissions I reflect back and am so glad I stayed in business for myself building transmissions. I also turned down an offer at NASCAR Tech. as a instructor in Mooresville for the same reason.
    By the way, if you will remove the drain plug BEFORE you remove the transmission, there will be less oil to deal with. Glad I could help.

  • @garrettnelson2293
    @garrettnelson2293 3 роки тому +1

    This channel is absolutely fantastic

  • @oldsguy49
    @oldsguy49 2 роки тому

    I'm an old school 8 decade hot rodder. I love manual transmissions and have over the years, worked on many different kinds. My point, this is a beautiful piece.....

  • @keeganwebber
    @keeganwebber 4 роки тому

    this video feels like every time i've ever taken a transmission apart. you always drop something important and small

  • @coreymackereth7241
    @coreymackereth7241 3 роки тому

    You could seriously do audio books. It doesn’t even have to be vehicle related - I could totally hear you reading anything from kids books to suspenseful stuff. Keep it up man this content has always been the utmost informative stuff while still keeping it interesting

  • @zgreen6604
    @zgreen6604 4 роки тому

    Super cool man. Love the details and how you name/explain everything in the tear downs. More info the better 👌👌

  • @chadellis4647
    @chadellis4647 4 роки тому

    Heyy I am a student in college studying in the automotive field these videos really do help me, hope you keep them coming and keep them just as in depth as they are now. Thanks

  • @TheDriftingDad
    @TheDriftingDad 5 років тому

    Is it weird that I just love watching how you work? You so everything so efficiently and clean

  • @brotharuss
    @brotharuss 4 роки тому

    You should do a $5000 LS1 build for youtube. It would get millions of views . ....you are the best mechanic on UA-cam hands down...extreme detail footage....much respect!

  • @macbain7230
    @macbain7230 3 роки тому

    Clear explanation - great video. Keep them coming.

  • @joelcleare
    @joelcleare 4 роки тому

    I can just change my own oil. But i cant stop watching your channel. Its like watching How its Made.

  • @scoo73r
    @scoo73r 4 роки тому

    This is the best explanation of how a transmission works that I've seen.

  • @B17714
    @B17714 4 роки тому

    Stumbled on these videos recently and love the content! Great lesson in each. Subscribed!

  • @jimmytwotimes802
    @jimmytwotimes802 3 роки тому

    Just found your channel, your video are awesome. I'm blown away by your knowledge of everything.

  • @phils_life
    @phils_life 5 років тому +1

    I really enjoy how you explain stuff. I hope you continue making content. Hoping for new Supra content in 2020.

  • @corriegillett2536
    @corriegillett2536 5 років тому

    Hey mate! I love your videos, no crap, just facts and cool content, thanks for doing them and I eagerly await the next one👌

  • @c.m.7037
    @c.m.7037 5 років тому

    Thanks for being so clear and concise in this video.

  • @thlee3
    @thlee3 5 років тому

    These are wonderfully edited videos. Nothing drags like most tutorials