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backwater prop size ?
http://www.mudmotortalk.com/mmt_v2/viewtopic.php?f=6&t=62129		 Page 1 of 1
Author:  freonjohn [ Fri Jun 05, 2015 8:59 pm ]
Post subject:  backwater prop size ?
Running a 10hp backwater on a 1442 with the 8x6 prop that came with motor.
I set governor speed to 4000 rpm out of water.

I know motor is a little undersized for boat but we have a 9.9hp restriction in our area.
Motor can only get to 3300-3400 rpm wot with just me and fishing gear.

wondering if I need to drop to a 8x5 to try to get rpms up and maybe squeeze out another 1mph or 2 ?
Author:  Glades Ranger [ Sat Jun 06, 2015 10:34 am ]
Post subject:  Re: backwater prop size ?
You are right, a bit underpowered with that hull, but worth a try with one size smaller prop. For example, my 27 HP LT is rated by most mfg.'s to use a 9x7; I get that 1 mph more with a 9x6...I am slightly over sea level so not saying this will be the result. Worst case you have a suitable backup prop, everyone needs a spare prop at all times. :geek:
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