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Craig 930 RS Craig 930 RS is offline
Me like track days
 
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Join Date: Sep 2003
Location: Kirkland, WA
Posts: 10,190
I know it seems odd, but according to some of the top engine builders, it turns out that the metallurgy involved does not make a difference in any aspect.

I'd assume the Carrera head have larger ports and valves than a stock 930 head - the SC heads used on my car (from 78-79) certainly do.

In the old days, the inefficient turbochargers pretty much relied on gas velocity to produce power - the modern TCs are so much better and pump so much more air that sheer volume becomes an issue........and a "bigger pipe" to deliver the goods becomes a goal, of which a part is manifold, heads, and in a different aspect, the exhaust.
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- Craig 3.4L, SC heads, 964 cams, B&B headers, K27 HF ZC turbo, Ruf IC. WUR & RPM switch, IA fuel head, Zork, G50/50 5 speed. 438 RWHP / 413 RWTQ -
"930 is the wild slut you sleep with who tries to kill you every time you "get it on" - Quote by Gabe
Movie: 930 on the dyno
Old 04-18-2007, 07:20 AM
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