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intake problem

This is a discussion on intake problem within the External Engine forums, part of the LSx Technical Help Section category; I have installed a fast intake on my 1999 corvette,i have gained good power but now i have a wisseling ...

  1. #1
    Junior Member
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    1999corvette

    Red face intake problem

    I have installed a fast intake on my 1999 corvette,i have gained good power but now i have a wisseling sound coming from the engine i have checked all the vacuum hoses and havent found the problem please help

  2. #2
    txcosmos
    Guest
    might be from the larger throttle body. BUt your ear to the CAI and the TB, and see if that's it.

    When I went to an aftermarket TB, it started whistling like crazy. You get used to it though...

  3. #3
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    thank you for the reply,i am using a stock ported tb

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    Life in the Fast lane sunsetorangess's Avatar
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    Check all of your vacum lines and intake for leaks.
    J
    2001 SS, Its not the car its the Driver that matters....

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    COME AT ME BRO Soltakr's Avatar
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    The whistling is pretty common on the FAST manifold. Now a leak is something else but from my experience with a few of these they do tend to hiss. I believe it is due to the intake speed has been improved and the air moving across the inner ribs is causing the sound. Or I could be complete wrong.

  6. #6
    Senior Member ss~zoso~ss's Avatar
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    yea, seems like the increased air flow is creating this noise, if it gets worse, or you suffer MPG ,performance or vacum device defficiencys i'd say you have a vacum leak

  7. #7
    King 0f n00bz shady milkman's Avatar
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    Quote Originally Posted by Soltakr View Post
    The whistling is pretty common on the FAST manifold. Now a leak is something else but from my experience with a few of these they do tend to hiss. I believe it is due to the intake speed has been improved and the air moving across the inner ribs is causing the sound. Or I could be complete wrong.
    nothing to worry about very common...i heard on two guys garage that a throttle body spacer will eliminate it ...i dont see how it would. but yea dont worry..thats all that nice cold air going in
    mods- suncoast creations hood with functional lt1 style airbox, ls6 intake, QTP longtube headers, QTP ORY, UMI SFC, Adj. LCA with relo brackets, UMI adj. panhard bar, Koni SA and strano springs,Torq Thrust M 17s 9.5 and 10.5 with nitto 555Rs, tuned by Frost
    Quote Originally Posted by Modulistic View Post
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