Race gas or is premium ok?
i have two questions. first if i have a procircuit high comp piston this would still work with it right? second question would you reccomend using vp fuel or would 93 oct be ok
Top 250 Contributor Best Answer Over 4 years ago Location: missoula mt
Yes the cams will work also. you can run 93 octane but the more compression that you give it the more its gonna want U4 race gas. if you istall these and the engine pings then i would want to run race fuel.
MotoSport Staff Expert Over 4 years ago Location: Portland, OR
This cam will work fine with the PC piston. Typically, most people who run a higher compression piston will want to run straight race gas, like VP, or a 50/50 blend of premium/race gas. VP gas contains slightly more oxygen to keep the detonation temperature cooler.