prop pitch

88xr4merc · Mar 17, 2013

If I change my xr4 150 lower unit to a 2 to 1 gear ratio what prop pitch do I need to maintain 5700 rpm

Bondo · Mar 17, 2013

Re: prop pitch

Ayuh,.... Welcome Aboard,... Whatcha startin' out with,..??

88xr4merc · Mar 17, 2013

Re: prop pitch

My lower unit is 1.78 and I think the pitch is 26

Bondo · Mar 17, 2013

Re: prop pitch

88xr4merc said:
My lower unit is 1.78 and I think the pitch is 26

Ayuh,.... Then with 2:1 gears, I think you'll run outa available pitch.... You'll be into the 30s...

Goin' the Other way makes more sense...