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911st 911st is offline
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Join Date: Jan 2004
Location: Sacramento
Posts: 7,269
There was a lot of questioning as to the validity in the original thread. (See link above.) Even if we discount it 10% or so this is an amazing amount of power.

Yes the HP is big but when you dig into the TQ is when things get wild. TQ peak is at a boost level of about 1.2-1.3 bar if I recall correctly. On euro pump gas without detonation issues. He gets more power out of every stroke than any other builder. And he does it without running up against the typical thermal limits that come with an air cooled motor.

Part of that can be attributed to a very efficient intercooler, turbo, and tuning but that is not enough to run at those levels and not toast a motor. Shortening the compression stroke would have the effect of lowering the effective compression.

For example, the Prius which uses a variation on the Miller Cycle would have a normal compression of over 13/1. However it runs on regular gas because it's effective compression ratio is closer to 10/1.
Old 08-30-2011, 06:56 AM
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