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Thread: VVTi TT6 dyno run.....no where near stock figures

  1. #1
    I'm a newbie Club Member
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    Unhappy VVTi TT6 dyno run.....no where near stock figures

    Hey guys, today I decided to put my vvti tt6 supra on the dyno to see what sort of power it would make before I went BPU spec.

    Car:

    2000 Toyota Supra VVTi 2jzgte manual
    Kakimoto catback exhaust
    Hks intake



    As you can see it just about made 192bhp and the boost massively falls off after 3500 rpm which shows the 2nd turbo isnt coming on at all!?!?!
    The car had fresh plugs, oil and filter recently too.

    Any thoughts? Looks to me as a boost leak or vaccum leak? But I dont know where to start or look or how to even tackle the issue. Any help much appreciated!

  2. #2
    Me? Post? Never! Club Member Mike2JZ's Avatar
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    Put car in TTC mode. If you get boost across both turbo's then you know you are dealing with either a plumbing or VSV issue.

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    Built not bought! Club Member
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    VVTI finally! Club Member JasonR24's Avatar
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    Quote Originally Posted by Mike2JZ View Post
    Put car in TTC mode. If you get boost across both turbo's then you know you are dealing with either a plumbing or VSV issue.
    Unless it’s the hose to the pressure tank then you still won’t get boost

  5. #5
    I'm a newbie Club Member
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    Right I'll get all the boost pipes/hoses checked along with the valve and vaccum hoses too, also a smoke test should be helpful

  6. #6
    Posting is my life! Club Member Jellybean's Avatar
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    If the vacuum hoses where never changed I would swap out with Gates Racing , inexpensive , piece of mind

    Same as OE

    Vacuum Hose Sizes

    4mm 3 metres
    5mm 1 metre
    6mm 1 metre

    https://www.ebay.ie/itm/330803508813...%3AMEBIDX%3AIT

  7. #7
    Work... what work? Club Member
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    Thanks Jelly Bean. Sorry to hear the disappointment Rashed.
    Hope you find the issue and hopefully it isn't a turbo shot.

  8. #8
    Helpful Club Member Scooter's Avatar
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    Number 8 ...........doing my best to keep
    Number 9 ........been and gone!
    Number 10 ........on its way

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