looking for cheap aftermaket parts

kwnate · 09-18-2008, 01:08 PM

Quote:

Originally Posted by mkiiisupra

110 doesnt make horsepower and only protects you from predetonation..... Isnt necessary untill about 15psi + w/ a turbo

I run 20psi with 92 octane.

shiftysupra · 09-19-2008, 07:30 PM

the highest here in arizona is premium only 91 octane. if i use 89 which is mid grade at first it wasnt knocking i ran like that for a few days but when driving her pretty hard :P ;].... haha.... she started knocking so gave the gas to my brother and wont use 89 anymore.

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09-19-2008, 07:30 PM	#2
shiftysupra 3" Exhaust Join Date: Jan 2006 Location: Arizona Posts: 96	the highest here in arizona is premium only 91 octane. if i use 89 which is mid grade at first it wasnt knocking i ran like that for a few days but when driving her pretty hard :P ;].... haha.... she started knocking so gave the gas to my brother and wont use 89 anymore.