What gap for 11.6+ compression?
10-02-2005, 12:26 PM
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What gap for 11.6+ compression? What gap do you guys like for compression ranges in the 11.6 and higher range. I know Chevy made a change in 04 from the platinums at .060 to irridiums at .039 thou. I ususally run TR6's but open the gap to .045 but this time I'm thinking i'll just throw them in at the set .040? What about heat range-I've had good luck with the TR6's-some guys prefer the TR5's or 55's? Your thoughts?
10-02-2005, 12:49 PM
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When I called NGK they said TR55 for the stock HP ranges, when you get about 100hp above or are running 100shot you should run the TR6s. We didn't discuss gap though.
10-02-2005, 02:28 PM
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I'm running TR55s with .055 gap right now.
The car is running great. But, should I change them?
I'm at about 11.3 to 1 compression with my new heads/cam and .040 cometic gasket.
No problem with KR right now, running about 25 degrees of timing at WOT. 93 octane.
The car is running great. But, should I change them?
I'm at about 11.3 to 1 compression with my new heads/cam and .040 cometic gasket.
No problem with KR right now, running about 25 degrees of timing at WOT. 93 octane.