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Craig 930 RS Craig 930 RS is offline
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Craig 930 RS's Avatar
 
Join Date: Sep 2003
Location: Kirkland, WA
Posts: 10,152
Good point. I have.

A local guy had a MOTEC EFI conversion done......with the stock manifold. He was disappointed in the results. 420 RWHP I believe was the max which is right about 500 FWHP. I don't recall the head work/porting etc that was done.

Realize that this by itself is not a damnation nor approval of a stock manifold, but rather a potential showing of the limitations that a stock manifold will produce - when this engine was compared to a nearly identical engine with a Carrera manifold.

I believe the Carrera manifolded engine had another 40hp.
YMMV, take this for what it is.
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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 -
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Old 02-04-2007, 12:05 PM
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