hot rod Posted December 5, 2006 Report Share Posted December 5, 2006 i have a cool head with 22cc domes im wonderring how far i can go down before i have to run race gas which domes do you guys think are the best..... 16-22 Quote Link to comment Share on other sites More sharing options...
scooter Posted December 5, 2006 Report Share Posted December 5, 2006 alot depends on elevation. theres a chart on the noss head site. you can call him hes great to deal with i called him and he was a great help in deciding tell him your mods and go from there Quote Link to comment Share on other sites More sharing options...
Bansh-eman Posted December 5, 2006 Report Share Posted December 5, 2006 theres is no way to tell you hat domes are best for your bike just averages other have used... temp elevation porting mods all contribut to factors... only 100% way of knowing is to do a compression test... Quote Link to comment Share on other sites More sharing options...
hot rod Posted December 5, 2006 Author Report Share Posted December 5, 2006 (edited) so at what compression do you need to run race gas ? i am at 5,000 feet .. st.anthony dunes Edited December 5, 2006 by hot rod Quote Link to comment Share on other sites More sharing options...
Bansh-eman Posted December 5, 2006 Report Share Posted December 5, 2006 so at what compression do you need to run race gas ? i am at 5,000 feet .. st.anthony dunes a good average is 160-170 although there is no 100% set in stone pressure... to be safe i go from 155ish... its cheap insureance for your motor rather then trying to squize a few extra pounds and save a couple dollars Quote Link to comment Share on other sites More sharing options...
jbooker82 Posted December 5, 2006 Report Share Posted December 5, 2006 If your engine is ported that can cause a lower compression as well. I have a mx port job and run 19cc domes on premium pump fuel. My elevation is 2000 ft. Quote Link to comment Share on other sites More sharing options...
hot rod Posted December 5, 2006 Author Report Share Posted December 5, 2006 cool... thanks alot.. that is the info i was wanting to know Quote Link to comment Share on other sites More sharing options...
BigRed350x Posted December 5, 2006 Report Share Posted December 5, 2006 I was running 17cc and 18cc domes on pump gas in the past. But I run at a WAY higher altitude than most people. Quote Link to comment Share on other sites More sharing options...
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