Thread: Cam Choices
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01-14-2007 04:24 PM #5
dcurtis, I don't mean to sound like I'm scolding you, but if you've paid ANY attention at all to the posts on this forum for the last several years, you must have learned by now that the cam MUST.....MUST be matched to the static compression ratio. If you're going to achieve success in an engine build, you can't just go picking a cam out of thin air and expect it to work for you.
The motor you're planning to screw together will have a static compression ratio of about 9.16:1 if you assume a 0.030" overbore, 76 cc heads, 5 cc's of eyebrow in the pistons and 8 cc's in the gasket (0.039" to 0.041" compressed with a zero deck). If you're planning something different from these specs, post it here so we can zero this motor in for you. I would also resist cutting the heads for more compression, 9.16 will make a great street motor with the right cam and you want all the meat on the heads you can get to insure they will seal properly. A light clean-up cut would be ok in my opinion.
If I were building your motor, here is the cam I'd choose for it....
http://www.cranecams.com/?show=brows...tType=camshaftPLANET EARTH, INSANE ASYLUM FOR THE UNIVERSE.





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