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- Aug 18, 2008
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I have a small 4 cylinder, 4 stroke project started (1" x 1.125" bxs). I want it to run well in the 300-400 RPM range. All other slow running issues aside for now, what kind of cam design and valve timing would be best? I will be using roller type rocker arms riding on the cam. I am thinking of basic slow speed design with intakes opening 0-5 degrees ATDC, closing about BDC, and exhaust opening at 30-35 degrees BBDC, and closing ATDC. All comments, or experience greatly appreciated.
Jeff
Jeff