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#'s for Degreeing Yz-F cams
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[QUOTE="Rich Rohrich, post: 162537, member: 16241"] Sorry for the delay Bill, I haven't been watching DRN much this weekend. Based on a rough guess of how your cylinder head currently flows here's my thoughts. Assuming a horsepower peak in the 8000-8500 range and torque peak about 3000 rpm lower I would start with a 104 intake LCA and a 106 exhaust LCA. I don't think it's really necessary to shim to zero for your purposes. I usually use .040" on either side of the nose as my checking height with good results. My YZ444F is currently set at 107 intake LCA and 108 exhaust LCA using the full stock exhaust system, 13.9:1 compression. and mildly modified cylinder head. After DirtWeek I'll get the adjustable cam sprockets and do some testing with data acquistion. [/QUOTE]
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Dirt Bike Discussions By Brand
Dirt Bike Brands - Other
#'s for Degreeing Yz-F cams
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