Ieat4strokes Posted May 17, 2009 Report Posted May 17, 2009 I have a fresh build, went from 21cc to 18cc domes and right at 150psi in both cylinders, Is this what you normally get with these @ 200ft above sea level? Quote
shee4speed Posted May 17, 2009 Report Posted May 17, 2009 I think the port work has something to do with it. comp.chart Quote
GrMeyer Posted May 17, 2009 Report Posted May 17, 2009 ya im going to say port work because i just got mine ported and with 20cc i only kicked 110 but the motor hasnt even been ran yet. Quote
RagunCajun Posted May 17, 2009 Report Posted May 17, 2009 Mines 19cc and im at 150. My port work brings it down though. The usual charts show stock porting. I had to ask my builder what's the lowest i could go and get away with pump gas. He was right on the money. Quote
2001Stroker Posted May 17, 2009 Report Posted May 17, 2009 With my 4mil, I had 18cc domes and it made 185psi. That's at sea level. It was trail ported, with 35mm carbs. Quote
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