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6.0 224R 112LSA cam exhaust smell?

This is a discussion on 6.0 224R 112LSA cam exhaust smell? within the Computer & Tuning forums, part of the LSx Technical Help Section category; My 6.0L, PRC 243 heads, Texas Speed 224R 112 LSA cammed, Kooks LT headers with cats, engine has about 500 ...

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    Senior Member Whamhammer's Avatar
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    '02 Trans Am WS-6, 6M

    6.0 224R 112LSA cam exhaust smell?

    My 6.0L, PRC 243 heads, Texas Speed 224R 112 LSA cammed, Kooks LT headers with cats, engine has about 500 or so miles, since it was put together and tuned. A fair bit of the time, the exhaust almost smells like a lawn mower.

    Should this be normal, or is something off?

    I did just replace the IAC about 150 miles ago, was running rough, runs a bit better but still has smell.

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    Senior Member Whamhammer's Avatar
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    Sep 2010
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    Bel Air, Maryland
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    '02 Trans Am WS-6, 6M

    Correction, the cam is a 228R
    SLP Air Lid/Smooth Bellows
    L76 6.0L block, PRC Ported 243 heads, Texas Speed 224R cam.
    Kooks Emissions LT Headers/Catted Y pipe
    NGK TR55 plugs
    Magnaflow Cat-back
    Spohn Front Upper Tubular Control Arms
    UMI Front Lower Tubular Control Arms
    UMI Front Sway Bar
    UMI Rear Lower Control Arms/ Adjustable Panhard Rod
    UMI Welded-on Two Piece Subframe Connectors
    Factory C5 Z06 17x9.5 wheels w/ 285-40-17 Continental Extreme Contact Sports all the way around.
    Dyno Dynamics dynoed @:
    415 rwhp

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