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atvfrk10
04-28-2005, 08:03 PM
If i get a powroll 250ex bigbore kit do i have to use raacing fuel, and also how reliable is the kit.
OldYellow
04-28-2005, 08:06 PM
What compression ratio are you running? If it is about 11:1 then u need to run race fuel.
atvfrk10
04-28-2005, 08:11 PM
70.5mm BORE, Stock STROKE, 10.8:1 COMPRESSION
OldYellow
04-29-2005, 07:07 AM
93 octane will be fine then. But i dont know about reliability.
Cody_300ex
04-29-2005, 12:05 PM
He should not worry about reliability on a 10:5:1 piston. Actually it will probley be around 9:8:1, unless he decks the head and jug.
Kyle_Racer_31
05-02-2005, 08:14 AM
I run just regular unleaded Fuel ....