Featured A90 Supra MKV on the dyno

Discussion in 'General Supra Topics' started by Goose, Jul 23, 2019.

  1. supraboi

    supraboi Well-Known Member

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  2. Twisted Tuning

    Twisted Tuning Well-Known Member
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    #242 Dec 23, 2019
    Last edited: Dec 30, 2019
    Pump Gas 93oct numbers on our EFR9280 Supra....... 550whp on mustang dyno equates to about 615-620whp on a dynojet.

     
  3. VelgenWheels

    VelgenWheels Well-Known Member
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    Running so nice numbers here keep up the good work.
     
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  4. Twisted Tuning

    Twisted Tuning Well-Known Member
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    Thank you
     
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  5. KahnBB6

    KahnBB6 Well-Known Member

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    I just came across this article/video. It's not clear how much horsepower and torque this guy's MKV is pushing (I skipped the 370Z section of the video and went straight to the MKV section so maybe he said something I missed) but this is curious to me: just how strong are the MKV's rear axles and just how strong is its stock rear differential?

    Even the 200mm MKIV diff and TT Automatic axles are known to be very stout out of the box aside from the limitations of the stock open diff and stock Torsen T-1 diff.

    He says he replaced the rear axles with stronger ones on his MKV prior to his diff blowing out. Perhaps the diff casing itself is plenty strong but it's the differential itself that needs to be changed out for an aftermarket clutch type unit?

    https://www.motor1.com/news/393910/modded-supra-breaks-drag-racing/



    This second video only discusses the MKV's rear diff failure (following his drag launch under who knows how much boost) for the first five minutes.

     
  6. a90moe

    a90moe Well-Known Member

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    Big turbo (G30-770), Nitrous out the whole and slicks

    600whp+

    Stock axles snapped, he changed them to upgraded ones at the track then it looks like the diff then gave out right after

    Slicks and high torque.. Yes I'd be worried
     
  7. SupraFiend

    SupraFiend Well-Known Member

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    Kinda funny, the 600whp/torque range is the same range where the mk2 Supras 7.5 diff (with a trutrac and upgraded axels) and axel stubs about reach their limit.
     
  8. a90moe

    a90moe Well-Known Member

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    Tried to do a dyno run today with a friend

    2 different Supra's followed video instructions

    Car does not hold gear, multiple codes after..

    Tried clearing and kept getting chassis error back on both cars after a short drive

    Disconnected battery and code went away

    Now headlight is out of alignment :(
     
  9. LS3Twins

    LS3Twins Well-Known Member

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    Headlight is easy. There is a sensor that clips into the driver's side control arm and is probably knocked out from them strapping it down.

    Are you not putting the car in manual mode on the dyno? Are you in dyno mode when on the dyno?
     
  10. A70TTR

    A70TTR Well-Known Member

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    the issue with the mkv axles is that they are hollow... many thought they were far stronger than they actually are because the shaft diameter is fairly large, but that was assuming solid shaft.

    either way, you're gonna break stuff at 600wtq+ when you're hitting that figure as fast and hard as this car.
     
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  11. SupraFiend

    SupraFiend Well-Known Member

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    Unless you know, it's a car built by a manufacturer that's known for overbuilding things, and maybe had built a few cars like this in the past, so knew enough to over build their newest version to the point it can handle 1000whp/torque from the factory. Maybe thats just a myth (legend?)...
     
  12. a90moe

    a90moe Well-Known Member

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    Sensor is in place.. Even unplugged it and plugged back again. Still pointing upwards

    Yes, dyno mode, dsc off and manual

    On both cars
     
  13. a90moe

    a90moe Well-Known Member

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    Rear headlight level senor was broken

    Zipped tied it until I could order one tomorrow

    No more chassis code
     
  14. a90moe

    a90moe Well-Known Member

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    Guys.. Part is not available and needs to be ordered from Japan

    Both cars have the same exact sensor broken

    Just a heads up for anyone willing to dyno at a shop not familiar with the car

    IMG_02022020_081752_(1080_x_1400_pixel).jpg


    IMG_02022020_082051_(1080_x_1400_pixel).jpg

    Chassis error code, headlights alignment issues and very stiff suspension
     
  15. jtsang25

    jtsang25 Well-Known Member

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    Parts ordered from Japan??!! Toyota part located?
     
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