Thread: CIS Horsepower
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911st 911st is offline
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Join Date: Jan 2004
Location: Sacramento
Posts: 7,269
Here is a thread on a 620hp CIS Monster: Cis monster

Optimizing the ignition on a 930 seems to be a solid opportunity for increased throttle response.

Would love to see someone properly set up one of the newer programmable MSD units on a CIS 930. However, dependable AFR's and compensation for changes in environmental factors become important variables when one wants to run closer to optimized settings and that is a CIS is weakness.

Brent had Andial re-curve and modify his ignition system. He did have the intake manifold honed but kept his intake ports stock size. He had all the normal goodies (SC cams Kolen IC, early HF turbo, shortie headers...) plus thermal coatings. I talked his CIS head builder into adjusting it for more fuel which later led to the HF fuel head. This allowed him to push the CIS HP limit some. I believe he also tipped above the one bar range on some of his dyno runs if I recall correctly.
Old 11-20-2009, 07:45 AM
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