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911nut 911nut is offline
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Join Date: May 2001
Location: Michigan
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Greater cam overlap flows more mass but requires a higher static compression ratio to gain back lost low speed engine performance. The problem is that on a turbocharged engine, there isn't much leeway on increasing static compression ratio without risking detonation.

Some of the loss can be gained back with a lightweight flywheel as the engine can get through the sluggish low speed zone quickly.
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Paul B.
'91 964 Turbo
Port matched, SC cams, K27/K29 turbo, Roush Performance custom headers w/Tial MV-S dual wastegates, Rarlyl8 muffler, LWFW, GT2 clutch & PP, BL wur, factory RS shifter, RS mounts, FVD timing mod, Big Reds, - 210 lb
Old 10-18-2014, 04:57 AM
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