stroking Posted October 3, 2009 Report Posted October 3, 2009 is 120psi to low on a new cub topend with the stock head? should i shave down the head for more comp or just jack the timing up to 10-12 deg ? its a alcohol motor. Quote
00tbanshee Posted October 3, 2009 Report Posted October 3, 2009 if you are running alky then spend the money and get yourself a aftermarket head with domes and get that compression up.have somebody cut you a set of domes for alky.not sure it will even run right on alky with only 120psi Quote
stroking Posted October 5, 2009 Author Report Posted October 5, 2009 if you are running alky then spend the money and get yourself a aftermarket head with domes and get that compression up.have somebody cut you a set of domes for alky.not sure it will even run right on alky with only 120psi its a customers bike and he's on a budget so the stock head what were using,i just need info on how much to cut. Quote
chugger Posted October 5, 2009 Report Posted October 5, 2009 What kind of cub is it? If its a 392 cub sometimes the squish can be tricky with blaster pistons? post your squish Quote
stroking Posted October 5, 2009 Author Report Posted October 5, 2009 HOTROD 4mil / 68mm bore motor i'll get the squish in the morning Quote
stroking Posted October 6, 2009 Author Report Posted October 6, 2009 squish is 0.050 if i can find 68mm 18/19cc dome that would help me out being that i have 2 cool heads i just found today hiding under some other parts. anyone got some domes for sale ? Quote
stroking Posted October 6, 2009 Author Report Posted October 6, 2009 squish is 0.050 if i can find 68mm 18/19cc dome that would help me out being that i have 2 cool heads i just found today hiding under some other parts. anyone got some domes for sale ? Quote
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