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160B · 10-17-2012, 10:14 PM

I have a high compression head counterweighed crank and Mitchell overdrive and a Tach. I cruise at 2100 to 2200 rpm and consider 2600 max rpm. The below table is approximate and shows mph for a given rpm with standard gearing and with a 27% overdrive.

Rpm mph mph @ 27%
2600 59 74.93
2500 57 72.39
2400 54.5 69.215
2300 52.5 66.675
2200 50 63.5
2100 47.5 60.325
2000 45 57.15
1900 43 54.61
1800 41 52.07
1700 38.5 48.895
1600 36.5 46.355
1500 34 43.18
1400 32 40.64
1300 27.5 34.925
1200 25 31.75
1100 22.5 28.575

10-17-2012, 10:14 PM	#8
160B Senior Member Join Date: Aug 2010 Location: Port Orchard, WA Posts: 1,498	Re: Redline I have a high compression head counterweighed crank and Mitchell overdrive and a Tach. I cruise at 2100 to 2200 rpm and consider 2600 max rpm. The below table is approximate and shows mph for a given rpm with standard gearing and with a 27% overdrive. Rpm mph mph @ 27% 2600 59 74.93 2500 57 72.39 2400 54.5 69.215 2300 52.5 66.675 2200 50 63.5 2100 47.5 60.325 2000 45 57.15 1900 43 54.61 1800 41 52.07 1700 38.5 48.895 1600 36.5 46.355 1500 34 43.18 1400 32 40.64 1300 27.5 34.925 1200 25 31.75 1100 22.5 28.575 Last edited by 160B; 10-18-2012 at 10:22 AM.