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911st 911st is offline
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Join Date: Jan 2004
Location: Sacramento
Posts: 7,269
And the answer is:

From what I have recently read, it was because under the Group B rules, manufactures were not allowed to increase lift. They could however increase duration.

Thus, the Group B cams seems to be a compromise or work around and unless one it trying to fit into a class that requires them they are probably not a best of bread cam.

They also did not seem to move the HP up the rpm curve much. They are reported to make peak HP at 5500rpm which is the same as a stock cam.

They were however allowed to fire ring the heads and they ran adjustable boost between 1 and 1.3 bar. Gross HP was reported to be around 360hp.


Last edited by 911st; 01-28-2010 at 12:32 PM..
Old 01-28-2010, 12:22 PM
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