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This is around the point where the swift guys are suppose to help out



Well, I'm jumping in anyway even though I'm not qualified...

This sorta ties in with the "Intake Closing Angle" question that was posted yesterday here and in the Q&A.

So is everyone using the ICP @.050" numbers from the cam card when calc'ing their DCR? Or, are you adding a few (5, 10, 15*) degrees -- per some online calculators -- because the valve is still off its seat?

Another calculator with altitude correction thrown in the mix. This one makes no mention of an additional 15* ICA.

http://www.wallaceracing.com/dynamic-cr.php

Last edited by 64Post; 07/18/09 03:59 PM.