How are they running dual plunging CVs on the same shaft?

Автокөліктер мен көлік құралдары

I've been wanting to move to 930 CVs for a while now but it really bothered me that both joints were plunging joints in race applications. I finally bought one to figure out the answer to my question and it wasn't what i was expecting but there's a good answer in there.
Thank you for watching!

Пікірлер: 46

  • @ErikSeastead
    @ErikSeastead2 жыл бұрын

    I love the short videos, and the algorithm likes consistent posting too!

  • @FrankensteinMotorworks

    @FrankensteinMotorworks

    2 жыл бұрын

    Thankfully they seem to have corrected that part of the algorithm. It was encouraging low value content and it really showed in the content that was coming out. They have adjusted it to make it so that high value low frequency content also gets pushed to the top if people are enjoying it. The biggest factor right now seems to be thumbnails and frankly my thumbnail game is very weak.

  • @rockenracing1996
    @rockenracing19962 жыл бұрын

    Dude, it's evident you were a software engineer. I am here for the discovery and to use to have better practice myself. Currently running an aw but loving what you are doing with the 2ar as a k24 alternative for when I'm ready for more power in my 20v mk1. Keep up the good content!

  • @FrankensteinMotorworks

    @FrankensteinMotorworks

    2 жыл бұрын

    I'm not sure what part of this video screams software engineer but that is true, I use to write software as my day job before Frankenstein Motorworks got big enough to support me. Thank you for watching :)

  • @whetonferdinand8165
    @whetonferdinand81652 жыл бұрын

    Love the shorter discovery videos too, just seeing you work, explain, and have fun is an inspiration to keep improving ourselves and our vehicles!

  • @FrankensteinMotorworks

    @FrankensteinMotorworks

    2 жыл бұрын

    The comments and the numbers seem to back up this feeling. I'll do what i can about mixing in more of these simple one off videos.

  • @phillyphil1513
    @phillyphil15132 жыл бұрын

    lathe running at 60 RPM for the WIN...!!! 👏👍😎 930 joint operation is exactly what i've been wondering about.

  • @FJ40Jim
    @FJ40Jim Жыл бұрын

    FYI, The GKN performance CV catalog lists the max plunge and max operating angles for various 90, 100 and 108mm CV joints.

  • @dannoyes4493
    @dannoyes44932 жыл бұрын

    Excellent Video. These add to the data base. Oh, and I believe congrats are in order. Congratulations!

  • @reneneron2971
    @reneneron29712 жыл бұрын

    Congrats. And the concise videos like this are great.

  • @VertigoGTI
    @VertigoGTI2 жыл бұрын

    Happy 5000! I personally love discovery videos, it helps keep new ideas flowing.

  • @FrankensteinMotorworks

    @FrankensteinMotorworks

    2 жыл бұрын

    Yeah that number seems so large. i'm quite excited about it. We'll see how the video does but hopefully the audience generally likes these because i come across stuff like this all the time and i'd love to share more of it with you guys.

  • @knightrousoxide
    @knightrousoxide2 жыл бұрын

    Love these little videos about the little odds and ends that you find. It's the small things that benefit the community!

  • @FrankensteinMotorworks

    @FrankensteinMotorworks

    2 жыл бұрын

    Your opinion seems to be shared with many viewers here so i'll do what i can about including more of these.

  • @josiahnelson4373
    @josiahnelson43732 жыл бұрын

    Congrats buddy. Keep up the great work.

  • @Nino13084
    @Nino130842 жыл бұрын

    I believe that the content you provide is second to none. Exactly the reason I watch videos on KZread. For information and ideas. Keep up the great work.

  • @FrankensteinMotorworks

    @FrankensteinMotorworks

    2 жыл бұрын

    I really appreciate that you watch the videos. I love sharing this info and my build progress with everyone here.

  • @kowalskitk4
    @kowalskitk42 жыл бұрын

    Thanks for video. Like to watch you and your ideas. Keep IT up! Cheers from Poland.

  • @FrankensteinMotorworks

    @FrankensteinMotorworks

    2 жыл бұрын

    Awesome! I have an even further reach than i thought :)

  • @vornice7604
    @vornice76042 ай бұрын

    the interesting thing is if the cv is clocked correctly then both joints jut in and out in unison thus making it negligible and not a problem to run at those angles provided the flanges stay roughly parallel

  • @chrisvilla2100
    @chrisvilla21002 жыл бұрын

    This is great!

  • @BRICEN18
    @BRICEN182 жыл бұрын

    Nice video. I liked the presentation ,helped me understand the jack shafts at work. The jack shafts have just a normal U joint style. I bet the style that your showing would be a lot stronger. As long as they’re lubricated Congrats on the 5k

  • @FrankensteinMotorworks

    @FrankensteinMotorworks

    2 жыл бұрын

    If you want to see something really weird you should look at those u-point shafts when operating at high angle. It's amazing they can reliably transmit power at all when you see it.

  • @emmanuelmeris5841
    @emmanuelmeris58412 жыл бұрын

    More people should listen to you more.

  • @DJsHotRodFab
    @DJsHotRodFab2 жыл бұрын

    Great video! I might be interested in something like this. Going to build a long travel suspension and may need custom length axles.

  • @FrankensteinMotorworks

    @FrankensteinMotorworks

    2 жыл бұрын

    The stock transverse configuration will never allow proper long travel suspensions but 930 joints would certainly be better for the kind of abuse you're putting the MR2 through.

  • @alexhise968
    @alexhise9682 жыл бұрын

    Awesome

  • @tabKola
    @tabKola2 жыл бұрын

    Honestly I'll watch any video you put out.

  • @FrankensteinMotorworks

    @FrankensteinMotorworks

    2 жыл бұрын

    Thank you, I appreciate it and so does the algorithm :)

  • @michaelscholten9753
    @michaelscholten97532 жыл бұрын

    I will know by the end of the month if I want a set.

  • @FrankensteinMotorworks

    @FrankensteinMotorworks

    2 жыл бұрын

    I really hope you don't end up having any more issues with the CV shafts but one way or another I will continue to work on this thing until i have a solution that lasts at least one season of endurance racing between services which should be good enough for a lifetime of street service with occasional autocross use.

  • @michaelscholten9753

    @michaelscholten9753

    2 жыл бұрын

    @@FrankensteinMotorworks yeah, I know your use case is more extreme than mine, so whatever you come up with will be fine for everyone else.

  • @user0055
    @user00552 жыл бұрын

    Hell yeah more discovery videos

  • @FrankensteinMotorworks

    @FrankensteinMotorworks

    2 жыл бұрын

    It seems that there's a bit of a consensus about this both in the comments as well as in the viewership rates. I'll try to put more of these together as i go.

  • @WilliamJasonSherwood
    @WilliamJasonSherwood2 жыл бұрын

    As always -- love your work! Thoughts on the AR vs K-Series swaps?

  • @FrankensteinMotorworks

    @FrankensteinMotorworks

    2 жыл бұрын

    Thank you for watching, you guys make it possible. As for AR vs. K, i'm obviously biased but in my opinion the K has amazing aftermarket support but you can't forget that the AR does not need as much support because it starts right from the factory in the same dimensions as a fully bored and stroked K. Both in 2.5L as a fully bored out K and as a 2.7L as a fully bored and stroked K. There's even an 86mm short stroke crank available for a 2.2L oversquare build if someone wants to go that way. As far as the valve setup goes, the AR starts at 36.5mm intake and 31mm exhaust. Both of which are significantly bigger than where the K starts and in fact are about at the size that most setups max out at except some of the very large 4 pistons racing builds. The intake and exhaust runners also start much bigger to match the large valves. Next, if you pull in the hybrid 2ar-fxe parts bin you can get 12.5:1 high compression pistons and a 270 degree cam with 9.5mm lift. Continuing on the valvetrain you find a dual vvt-i setup that allows you to run a much wider torque band. Next, when you go on the outside of the motor you find a really nice dual length intake manifold with a large 65mm throttle body that will likely support up to 300whp without significant restriction. So far i've managed 241whp and it only has 4kPa of restriction between the filter all the way to the intake plenum. I haven't played with the stock exhaust manifolds but the stock Highlander 1ar-fe exhaust manifold is a pretty nice 4-2-1 manifold with a 2" outlet right from the factory again. Essentially, the AR is missing aftermarket support for all the simple stuff but it isn't necessary because Toyota already provides all those parts for you. As far as power holding goes, based on Papadakis' formula drift car we know that the stock crank will put up to ridiculous abuse at the 850whp level which means it would likely survive over 1000whp in a drag car and the stock open deck cylinder setup was retained for his build that made over 1000whp. So again, no parts exist here but they also is no need for anything to exist, it comes with it for $250 right from the pick-n-pull. On the smaller but still very important side of things, the engine has 10 oil squirters to cool the pistons and a pretty good Air/Oil separator in the PCV system and an oil pickup that seems to be alright with at least 1.2g's in the corners and possibly more. We occasionally hit up to 1.6g's and we haven't had any issues but we consistently hit 1.2g's. I've also put over 35,000miles of endurance racing on a single engine with nothing but oil changes and the only wear in the engine was the rear main seal and the forward thrust bearing. the mains and rods had perfect bearings that could have been re-installed as-is. high strength turbo pistons are already available from JE pistons. Essentially the only thing this thing is missing is camshafts but I'm working to solve this very soon, about 2-3 weeks and i'll have 10 different sets of camshafts to explore. I expect to release a 250whp cam set first and after more R&D i should be able to release even bigger ones. It'll also eventually need an aftermarket intake available for it but we know it supports at least 110hp/L with the stock one and i do plan on releasing an aftermarket intake for it soon. Cast aluminum to support those builds with stupid amounts of boost. The only downside so far to this motor is it has very low tension rings which is great for many things but if you use it for several years without ever being aggressive on the throttle they eventually get clogged up and stick which causes oil burning. This should never be a problem on an engine being pushed harder and in fact that 35,000 mile race motor I pulled apart had absolutely zero gummed up oil residue anywhere in the engine.

  • @allan80supra
    @allan80supra2 жыл бұрын

    could use a splined slip joint between two 930 CV's to take up that pushing if you need more angle?

  • @FrankensteinMotorworks

    @FrankensteinMotorworks

    2 жыл бұрын

    I probably could have been clearer about this, i don't expect to need more than about 10 degrees so the 13 degree max angle before the "lumpiness" won't be a problem at all for me. For applications where that matters you should be able to phase the joints properly to avoid any issues. Some people do seem to use slip joints to add travel so it could be worth exploring if this is something you need. the 930 CV joints really have an absolute TON of aftermarket support .

  • @RCToys09
    @RCToys092 жыл бұрын

    Depending on the price, I think I'm down for a set. Are we getting traction control next? LOL.

  • @FrankensteinMotorworks

    @FrankensteinMotorworks

    2 жыл бұрын

    Who knows, maybe i'll have to explore wheelie control stuff eventually :) it's not on the short list though.

  • @heybabycometobutthead
    @heybabycometobutthead2 жыл бұрын

    what lathe is that you are using?

  • @FrankensteinMotorworks

    @FrankensteinMotorworks

    2 жыл бұрын

    It's an old school 17" Turnado

  • @mrkazman
    @mrkazman2 жыл бұрын

    Commenting for algorithm karma. Big end is better! The egg cracks easier!

  • @FrankensteinMotorworks

    @FrankensteinMotorworks

    2 жыл бұрын

    Awesome, i appreciate it. But what about double yolks?

  • @mrkazman

    @mrkazman

    2 жыл бұрын

    @@FrankensteinMotorworks nonsense! You never know if you've been blessed by the High Eggy Lord until you've committed to either end!

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