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I ran 8.7 to 1 CR pistons with a stock Starion turbo system and got that same light part throttle detonation. I found that the primary spring on the advance weights on the Starion distributor was super light allowing a lot of mechanical advance at a low RPM range.

By swapping in the springs from the carb motors distributor I was able to slow the advance curve so that I did not get the part throttle detonation.

Kevin


You crack me up. Damn I wish we were in the same area. Then I could bring over beers and hang out in your garage... <img src="/forums/images/graemlins/cheers.gif" alt="" />

(Don't anyone be reading into that. We're both married. <img src="/forums/images/graemlins/lol.gif" alt="" /> )


Jamez: I run cheap gas myself. I don't think the Quest calls for premium. A assume the lower CR offsets.

Big Truck: 00, 3.5, Endeavor, 5-Spd drive line in hand!
Little Truck: 87, 2.6T I/C, MT, LSDs, Tonneau Top
Her Truck: 03, 3.8, 20th Anniv, 65k
Daughter's: 06 Eclipse, Keeping it Mitsu!
FSMs: MitsubishiLinks.com