depends also on lot of think but im just speaking from experience on turbo V6 and in line 6. my friend got a old supra that ran low 9 and hes at 8 CR with 25lbs and still he never heard the engine pinging, but no way it could go under 120 octane!!!Originally Posted by Blown_SC
also big thanks to the oversize intercooler. is your supercharge the typical bolt-on-the-intake (surely no!)? Do you got an air cooling system? i like seeing people tuning roided V6, makes sonthing different!!
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