Quote:
Originally Posted by Jake Wade
I fiqured that was who you was talking about. I saw where he brought that up over at Team Chevelle, pretty much left everyone hanging.
Whether he is right or wrong, fact is, If you have chosen the optimal camshaft for your desired operating RPM range, have the optimal cylinder heads, it makes no sense to have less than optimal CR .. even though it doesn't matter to the cam.
That's all I got to say. over and out.
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He did leave everyone hanging which is why I pm`ed him to find how what he was talking about. I mean, makes sence to me. Valves are closed in the compression stroke, no way to build cylinder pressure if valves are open even the slightest bit. So on the compression stroke it doesnt matter what the compression is because the cam isnt doing anything on that cycle. Now cylinder pressure is something else all together and that is easily fixed with the right cam. Sure a 40yr old grind is not going to build proper cylinder pressure. But a modern grind with similar specs will make more cylinder pressure with the same compression and make more power in the same rpm range.
I was just trying to help out here and clearly my opinion is not very popular so with that I wish you good luck. The 290hp engine is a decent engine, I was happy with it for what it was and should bring you plenty of trouble free miles.