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Old 10-31-2011 | 06:31 PM
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gkamysz
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Default RE: SuperTigre 4500 conversion
That's incorrect. What prop constant are you using? From another perspective, if a 45cc engine is making 6.6HP at 6650, BMEP is 143psi. That would be positively stunning. At 3.3HP the BMEP is a realistic 77psi.

Try this site I found. http://personal.osi.hu/fuzesisz/strc_eng/index.htm

Greg
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