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Tilikum Turbo Tilikum Turbo is offline
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Join Date: May 2010
Location: Los Angeles
Posts: 1,004
3.0 versus 3.3

I believe one of the reasons Porsche increased the displacement from 3.0 to 3.3 in 1978 was to improve the flexibility of the engine at low RPM's, reducing the turbo lag. On the flip side, the response on the earlier 3.0 had to be good, as there was no intercooler buffer between the turbo and the engine.

Personally, the 86' 930 engine that I installed in my 1983SC seems to be just like my old 3.0 normal engine, until 3000RPM's when the boost starts. I've never experienced a turbo-lag with this engine, unlike driving a friends Audi TT with a 225HP 2.0L motor, which was a real dog to drive.
1983 911 3.3L Turbo(YES, I know the turbo badge is on the right...had to be different!)
1996 Toyota Corolla(der 'clapper')
Old 11-05-2010, 10:06 PM
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