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Neo187H · 08-08-2014, 12:20 AM

What compression ratios are people with high HP built engine turbo builds running and more importantly, why that ratio? Speaking with a tuner they recommend 9:1 going down that road but from what I've seen most everyone seems to be running 10:1 and getting in the upper 500HP all the way to 600HP range. Is there an advantage to the lower compression at those power levels? The car would be running 93 octane gas.

08-08-2014, 12:20 AM	#1 (permalink)
Neo187H Enthusiast Member Join Date: Jan 2009 Location: Albany, NY Posts: 302 Drives: PW 370Z Rep Power: 16	Compression ratio for built engine? What compression ratios are people with high HP built engine turbo builds running and more importantly, why that ratio? Speaking with a tuner they recommend 9:1 going down that road but from what I've seen most everyone seems to be running 10:1 and getting in the upper 500HP all the way to 600HP range. Is there an advantage to the lower compression at those power levels? The car would be running 93 octane gas.