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patkeefe patkeefe is offline
one of the great unwashed
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Join Date: Apr 2004
Location: Ringwood, NJ
Posts: 2,850
Ok. You are obviously not making pressure in the lower RPM range. It doesn't appear that you have an overly rich fueling issue from the chart. Pressure is a function of how fast and what size the compressor is, and same with the turbine. I don't recall what you have for a turbo. You may be not making spool faster because of the turbine being too large.

You could have leaks between the compressor and the throttle butterfly, or down past there into the cylinders. Could be cam overlap..what cams are you running, SC? Did you do a leakdown on the cylinders?

There exist a lot of variables to this issue.
Patrick E. Keefe
78 SC
01 Boxster
Old 11-18-2011, 03:22 PM
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