Thread: spun bearings

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Originally Posted by camaro_fever68

Detonation will though.

My moneys on detonation. When I first started with sbc, everyone told me 38-39 degrees total advance ignition timing even though I was working on a 400. Well I spun more bearings than you could imagine and this is without power adders. Once I figured out that more stroke equates to more compression during the same 38-39 degrees of rotation, the problem was solved. Now I only run 34 degrees total and when I hit nos, I drop another 4 degrees for every one hundred hp.

Sooooo, if you were running 25 plus boost, that has got to equate to some 3-500 hp which means the timing should have been compensated for by up to 20 degrees less.

What timing and what fuel were you using?