Quote:
Originally Posted by 2bars
Thanks for the support guys. And reassurance with the alloy.
Parts on in transit as I type this. It will be a 482 stroker. Aiming for 9.5:1 compression. I live in Arizona and it gets hot. I do not want to deal with detonation on pump gas (like I did).
It is a Scat crank. I am sticking with the same cam and hydraulic lifters.
It will be run on a dyno.
Ceramic coating to combustion chamber, pistons
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I think you are making a good call on the compression ratio. Mine is at about 10:1. I am running a Comp Cams custom grind with 242/248 intake and exhaust durations (@0.050") and lift at 0.642/0.631 respectively and 112 degree LSA. Edelbrock heads with stage 3 porting and the big valves (2.25/1.75). No pinging on 91 octane but it does diesel when I shut it down (timing at 12 degrees at 800 rpm idle and about 38 degrees fully advanced at 2750 or so). If I run a little 95 octane in it the dieseling goes away...it really likes octane level at or above 92-93. With a similar setup and 9.5 to 1 you should be just right I think.