mycat8urskidoo
02-04-2010, 09:58 PM
Looking into a raptor 660 that has a 12.5 to 1 compression ratio, I've read that anything over 12 requires race fuel, Tried to do some research on the subject, and front what i've read race fuel means anything from 99 to 118 octane depending on your location i guess. Locally i have access to 110 octane (7 bux a gallon ) and 93 octane. What i was wondering is if i should run straight 110 octane, or if i can get away mixing the 110 with 93 to a 100 octane mixture or so, also curious if there was any octane boosters that would work with 93 octane for this aplication or are they all a waste of money like i've heard many times before. Heres what the raptor has done to it: bored and stroked to 686, 12.5 compression ratio, stage 3 hotcam, edelbrock intake and edelbrock carb/airbox, CT Racing full exhaust