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692 Posts
If it's true that black sooty plugs mean overfueling and/or too much timing retard, why is it that my engine with such high advance fouling plugs so quickly? The average @ 3000+RPM was 35* to 40* timing. This seems really high to me right?
034 set the initial tune and it worked great for the first 5000 miles, but I think it really needs to be dialed back. I can only run 91 octane here in CA and these kind of advance numbers make me think it was tuned with 100+ octane.
The engine is 3b w/GT28RS turbo @ .63 A/R, 42lb injectors. I'm thinking I should dial back both the timing and fueling. Gas mileage has been horrible? Any thoughts? Thanks!
034 set the initial tune and it worked great for the first 5000 miles, but I think it really needs to be dialed back. I can only run 91 octane here in CA and these kind of advance numbers make me think it was tuned with 100+ octane.
The engine is 3b w/GT28RS turbo @ .63 A/R, 42lb injectors. I'm thinking I should dial back both the timing and fueling. Gas mileage has been horrible? Any thoughts? Thanks!