Tail of three OMC Outdrives and their Ratios

Bob1944

Petty Officer 1st Class
Joined
Aug 16, 2008
Messages
216
165 hp Upper 21.19 total .72 overall 1.39

210 hp Upper 21.16 total .86 overall 1.61

120 hp Upper 16.20 total .52 overall 1.92

I would like the put the 210 hp outdrive on the 165 hp engine. Will the 165 hp prop turn faster or slower with with the 210 hp outdrive? Will anything bad happen?

Signed:
Confused in Twin Lake:confused:
 

Don S

Honorary Moderator Emeritus
Joined
Aug 31, 2004
Messages
62,321
Re: Tail of three OMC Outdrives and their Ratios

Use the proper gear ratio for your engine.
 

Bob1944

Petty Officer 1st Class
Joined
Aug 16, 2008
Messages
216
Re: Tail of three OMC Outdrives and their Ratios

I hear ya, but lets say a guy put a v8 outdrive on a inline 6. Would anything bad happen?

One would gain .14 total and about .20 overall. I figure if the outdrive can take the torque of a v8 a 6 would not hurt it.
 
Top