Thread: Turbo C2 964?
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Jim2 Jim2 is offline
7.0:1 > 11.3:1
Join Date: Oct 2003
Location: Calgary
Posts: 1,879
The C2 non-turbo motor is 11.3:1 compression ratio which dose not lend itselt to boost application. Those who boost by either turbo or super charger quickly find out they are running on the ragged edge of detonation with only a few psi boost.

A 930 engine by comparison is 7.0:1 (8.5:1 seems like the common limit for Porsche turbos) You really need to install different pistons to properly do a turbo conversion on the 3.6. I myself am considering doing this right now to a 993.
Old 12-31-2009, 04:26 PM
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