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Thierry25 Thierry25 is offline
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Join Date: Feb 2009
Location: FRANCE (Besanšon)
Posts: 310
Originally Posted by TurboKraft View Post
Correct -- the more stock the engine, the less efficient the engine, so the less it is able to consume the greater airflow at lower rpms and the greater the need for the ported shroud to reduce or eliminate surge.

.... only mods were aftermarket headers.....
Innapropriate wastegate tubing and after market headers design is also a key point for this problem ....
965 C2T / 1991 3.3 TURBO
Old 06-23-2011, 11:31 AM
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