Quote:
Originally Posted by tom1394racing
I have been running 10.5 CR in my 3.0 RSR spec motor with 46 mm PMO's, DC60 cams and Bosch twin plug for about about 8 years with no detonation on 93 octane pump gas.
I think you will be fine at 10.5 with twin plug.
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Tom,
Do you recall the deck height? AKA squish, AKA piston to head clearance for your engine?
Shane
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78’ SC 911 Targa - 3.2SS, PMO 46, M&K 2/2 1 5/8” HEADERS, 123 DIST, PORTERFIELD R4-S PADS, KR75 CAMS, REBEL RACING BUSHINGS, KONI CLASSICS
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