Re: prop survey
'73 Center Console
Original motor
Evinrude '75 135hp
max speeds
4900 RPM @ 35 MPH 13x19 SS (old beat up prop)
4600 RPM @ 31 MPH 13.25x17 Alu (new $130 Mich Wheel)
Upgraded motor to:
Evinrude '83 175hp
original old prop SST 14-1/4x21 4500rpm @ 43MPH (max)
replaced with $50 ebay prop, 15x17 SST II
tops out fully loaded at 43mph (GPS) @ 5400rpm
normal cruising speed of 30mph @ 3800rpm
Keep in mind when comparing numbers, the hp rating change in '84/'85 means this 175hp would be about the same as an '85 and newer 150hp.
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