BANSH-alena-jol-EE Posted May 21, 2009 Report Share Posted May 21, 2009 hello, i can get any racing fuel, the most ocatane i can get in gas is 91...is there any point on getting a cool head or any kind of head? Quote Link to comment Share on other sites More sharing options...
AKheathen Posted May 22, 2009 Report Share Posted May 22, 2009 you can run 21-22cc domes still with stock timing, which is still more compression than the stock head. i just dropped 20's in with 91. but that's pusing it Quote Link to comment Share on other sites More sharing options...
spurdy Posted May 22, 2009 Report Share Posted May 22, 2009 you can run 21-22cc domes still with stock timing, which is still more compression than the stock head. i just dropped 20's in with 91. but that's pusing it Yep. I used to run 21's with 91/93 and 20's were pushing it for me so I stayed with 21's. SP Quote Link to comment Share on other sites More sharing options...
AKheathen Posted May 22, 2009 Report Share Posted May 22, 2009 oh, yah. if you run higher elevations, you can put smaller domes in, too Quote Link to comment Share on other sites More sharing options...
TwistedSheeRida Posted May 22, 2009 Report Share Posted May 22, 2009 what about 20 cc with 91 mixed with 25% av fuel Quote Link to comment Share on other sites More sharing options...
spurdy Posted May 22, 2009 Report Share Posted May 22, 2009 what about 20 cc with 91 mixed with 25% av fuel Not sure but I think someone on here said not to mix av fuel with other fuels. Not sure again but I think it has something to do with the lead content? WTFDIK? SP Quote Link to comment Share on other sites More sharing options...
TwistedSheeRida Posted May 22, 2009 Report Share Posted May 22, 2009 yeah i read that to im not to worried about it i know a lot of people around here who have been doing it for years in there bikes at the drag strip Quote Link to comment Share on other sites More sharing options...
peak-j Posted May 22, 2009 Report Share Posted May 22, 2009 I'm running 20cc domes with 150psi on 91 octane. Elevation around 1000ft. Quote Link to comment Share on other sites More sharing options...
sheerider1026 Posted May 22, 2009 Report Share Posted May 22, 2009 im running 19cc's with 93 octane, 5.5+ timing, at 600 feet.. no problems.. it actually freakin screams for what it is.. ask some of the guys on here that have seen this bike run.. Quote Link to comment Share on other sites More sharing options...
ban06shee Posted May 22, 2009 Report Share Posted May 22, 2009 (edited) check out my setup, i run 91 :biggrin: Edited May 22, 2009 by ban06shee Quote Link to comment Share on other sites More sharing options...
2001Stroker Posted May 22, 2009 Report Share Posted May 22, 2009 check out my setup, i run 91 :biggrin: I hope you're at 20,000 feet. lol. 18cc domes, +5 timing, 91 octane, and a stock motor is a recipe for disaster. No offense, but I bet that motor's pinging it's ass off. Pull your plugs, and stick a magnifying glass to them. See how many metal particles are on them. Quote Link to comment Share on other sites More sharing options...
sheerider1026 Posted May 22, 2009 Report Share Posted May 22, 2009 i have ran the 19cc/ +5.5 timing combo on 93 pump for about 10 years.. never a problem.. gotta be careful with the tune. but i love tuning on these bikes Quote Link to comment Share on other sites More sharing options...
ban06shee Posted May 22, 2009 Report Share Posted May 22, 2009 I hope you're at 20,000 feet. lol. 18cc domes, +5 timing, 91 octane, and a stock motor is a recipe for disaster. No offense, but I bet that motor's pinging it's ass off. Pull your plugs, and stick a magnifying glass to them. See how many metal particles are on them. hell nah, im at 2,389 runs great, hauls ass too! Quote Link to comment Share on other sites More sharing options...
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