BansheeRider576 Posted October 10, 2004 Report Posted October 10, 2004 i have a mx banshee with pro design cool head and 19cc domes... i want to convert it from race gas (105 octane) back to 94 octane because i jsut can't afford it anymore.. i have read somewhere that you can run 21cc domes with 94 octane is this true??? i know it is possible to run 22cc domes but i would like to get the highest compression poissible... Quote
dlnoss Posted October 10, 2004 Report Posted October 10, 2004 What is your elevation and other mods? Quote
bigboybanshee Posted October 10, 2004 Report Posted October 10, 2004 I'm running 21cc domes on pump gas, runs great! My elevation is just above sea level and I have 148psi compression in each cylinder... Quote
Wallrat Posted October 10, 2004 Report Posted October 10, 2004 Hey bigboy, is your timing advanced at all? Quote
BansheeRider576 Posted October 10, 2004 Author Report Posted October 10, 2004 i have wiseco pro lite pistons, duncan reeds and a trintiy 2-1 intake manifold with the single carb... my elevation ranges from like 300- 900ft above sea leveland temperatures anywhere from 90 to freezing.....anybody know what size domes are best? Quote
bigboybanshee Posted October 10, 2004 Report Posted October 10, 2004 Hey bigboy, is your timing advanced at all? No, not at this moment....should it be? Quote
frocashmoney24 Posted October 10, 2004 Report Posted October 10, 2004 you probably will be able to run 93 with 21's, if i was you i'd mod your stock stator plate and put it at +3 Quote
Wallrat Posted October 11, 2004 Report Posted October 11, 2004 should it be? Doesn't matter to me. I was just asking since advancing the timing has a similar effect to increasing the compression. Quote
blstr2banshe Posted October 14, 2004 Report Posted October 14, 2004 what is the best cool head to get, prodesigns good? if i were to get the 22cc domes i will need to rejet, correct? Quote
dlnoss Posted October 14, 2004 Report Posted October 14, 2004 BansheeRider576, You should be okay with 21cc domes and 94 octane since your timing isn't advanced. Quote
Wallrat Posted October 14, 2004 Report Posted October 14, 2004 what is the best cool head to get There's your answer right there. dlNoss makes some of the best ones out there. Quote
bigboybanshee Posted October 14, 2004 Report Posted October 14, 2004 what is the best cool head to get There's your answer right there. dlNoss makes some of the best ones out there. I'll second that...dlnoss by far exceeded my expectations with the noss head Quote
BansheeRider576 Posted October 14, 2004 Author Report Posted October 14, 2004 ok thanks for all the help one last question though... does any one know the high compression you can run with pump gas???... and secondly would i be better off running 22cc domes with advanced timing or jus getting the 21cc domes and keeping my stock timing?? Quote
Toomey Banshee Posted October 17, 2004 Report Posted October 17, 2004 You can go up to about 160 pounds of compression before you have to run race fuel. I have 20cc domes on the 99 and run 3 gallons of pump to 2 gallons of race. No problems, at sea level. 21's should be good with pump. Noss makes the nicest cool heads and gives us HQ people a discount and you have the luxury of asking him any questions since he is a member here. Quote
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