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911st 911st is offline
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Join Date: Jan 2004
Location: Sacramento
Posts: 7,269
I am a big believer that there is power hiding on the exhaust side by going with a larger and more efficient hot side. However that delays boost response.

However, I am interested in what seem to be a trend toward smaller fast acting hot sides with larger more efficient compressor wheels and using an efficient WG circuit to handle much of the exhaust flow so it can still make top end.

However, most do not concern them selves with how well the WG side flows. Just that it is large enough to keep from over-boosting.

No matter, it will alwas be a low end v top end trade off just like on a N/A car when it comes to cams.

Not sure but it might be that the motor's that seem to be making HP by 3k are running stock 930 cams that have about a point higher effective compression ratio than a C2 cam and they are timed to be efficent earlyer in the rpm range.

Last edited by 911st; 05-27-2010 at 11:02 AM..
Old 05-27-2010, 10:45 AM
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