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Thread: Boost Issue!! Or not?

  1. nstabl
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    Boost Issue!! Or not?

    10-12-2012 12:40 PM #1
    Hi Everyone - can someone pls explain why when my car gets closer to redline the boost drops dramatically to ~8psi before shifting in any gear I'm in?

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  3. S WORD
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    10-12-2012 01:41 PM #2
    Because the engine and parts are not built to run that way. Did you just get a new boost gauge or something? Are you tuned?

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  4. nick0188
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    10-12-2012 05:09 PM #3
    The turbo can not compress any more air at high rpm's. the downside of a small turbo. K04 or bigger will let you hold most of your peak to redline or above.
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  5. plpaiement
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    10-14-2012 03:47 PM #4
    I have a MKV TSI and I'm tuned APR stage II. There's no way I get near 20 psi at full boost.

    I always get 17-18 peak then drops to stable 14-15 up to approx 4000 RPM...

    Now concerning your problem, there's probably something you would need to add to your setup to help stabilize the boost.

    Do you have an exhaust (cat back...turbo back)...? DV functions properly...? Proper fuel rate...?
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  6. nstabl
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    10-15-2012 11:21 PM #5
    Quote Originally Posted by plpaiement View Post
    I have a MKV TSI and I'm tuned APR stage II. There's no way I get near 20 psi at full boost.

    I always get 17-18 peak then drops to stable 14-15 up to approx 4000 RPM...

    Now concerning your problem, there's probably something you would need to add to your setup to help stabilize the boost.

    Do you have an exhaust (cat back...turbo back)...? DV functions properly...? Proper fuel rate...?
    APR Stage 2 on my 2010 CC with intake and straight pipe, only 2.5" though. I feel like the car has so much more potential that is getting wasted...
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  7. hummvee2134
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    10-17-2012 12:18 AM #6
    Quote Originally Posted by nstabl View Post
    APR Stage 2 on my 2010 CC with intake and straight pipe, only 2.5" though. I feel like the car has so much more potential that is getting wasted...
    You have a small turbo. If you don't like it, get a bigger one
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