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turbo88stang · November 8th, 2007, 12:54 PM

ive built my fair share or cars with forced induction and high compression, and was just wondering if 91 octane is really needed for 9.6:1 compression, especially if the stock tune isnt very generous with timing?

November 8th, 2007, 12:54 PM	#1
turbo88stang n00b turbo88stang is offline Join Date: Nov 2007 Posts: 3 Rep Power: 0	is premium fuel really needed? ive built my fair share or cars with forced induction and high compression, and was just wondering if 91 octane is really needed for 9.6:1 compression, especially if the stock tune isnt very generous with timing?