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08-05-2006, 12:22 PM
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#9 |
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Registered Member
Join Date: Apr 2001
Location: Staging lane
Posts: 4,337
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Re: Timing for lower octane?
Well considering I raced the hell out of that engine on 87 octane and never had an issue one in 3 years I would say it was running fine. Mid 12's @108 mph. It would start to detonate at 16 degrees of initial timing with 87 octane.
I ran 93 octane and bumped the timing as high as 18 degrees initial but it ran the fastest at 14 degrees and 87 octane. I tweeked it out over the course of a couple hundred 1/4 mile runs. It could have something to do with the crappy air where I am at. 3000-5700 ft density altitude.
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92' LX-Big brakes, Lots and lots of suspension, GT40X heads, Ported cobra intake, stock cam, Vortech SC trim. 00' Lightning-Stock 88'CRX-13 second ego killer |
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