jimbo1986 Posted April 24, 2011 Report Posted April 24, 2011 i liive in pa. im getting my cyclinders ported and the guy doing it says to get 19cc domes but i dont want to run race gas and he says u dont have too. need alittle help Quote
06specialedition Posted April 24, 2011 Report Posted April 24, 2011 i liive in pa. im getting my cyclinders ported and the guy doing it says to get 19cc domes but i dont want to run race gas and he says u dont have too. need alittle help It all depends on your elevation. I've always heard anything more than 165ish on compression requires higher octane fuel. Look at this chart towards the bottom of this link: http://www.nossmachine.com/banshee_heads.htm I run 19cc domes on pump gas, but I ride at 5,000FT. You will probably end up with 21's or so IMO. Quote
jimbo1986 Posted April 24, 2011 Author Report Posted April 24, 2011 It all depends on your elevation. I've always heard anything more than 165ish on compression requires higher octane fuel. Look at this chart towards the bottom of this link: http://www.nossmachine.com/banshee_heads.htm I run 19cc domes on pump gas, but I ride at 5,000FT. You will probably end up with 21's or so IMO. so you think i should run 20 or 21 Quote
jimbo1986 Posted April 24, 2011 Author Report Posted April 24, 2011 so you think i should run 20 or 21 my elevation is 1250 so i might be able to get away with 19s but maybe 20cc to play it safe Quote
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