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23.5 Kholer RPMs under load
http://www.mudmotortalk.com/mmt_v2/viewtopic.php?f=3&t=71845
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Author:  Bayport [ Fri Jan 05, 2018 9:15 am ]
Post subject:  23.5 Kholer RPMs under load

Longtail on 14x36 w pods. Had a 9x7 prop that I broke. Was getting about 3520 under load and 29 mph w 2 guys
Spoke w Backwater and they suggested the 9x6 for that boat and motor.
Now turning 3750 under load to get same MPH.
Not really concerned about the 1-2 MPH difference but it seems that this prop also is not very good in thick lilly pads.

My question, is that RPM too much for that motor?

I talked w backwater and they said I can send it back and get the 9x7...

I know, seems like no brainer but wanted to ask of those a lot more experienced that me.
Thx

Author:  CypressCritter [ Fri Jan 05, 2018 9:36 am ]
Post subject:  Re: 23.5 Kholer RPMs under load

At WFO, your motor should be at 3600-4000 if stock and boat not overloaded. The lilly pad thing could be the prop?? Back in the day, for veggies I ran a 2 blade 9x4, for the no veggie thing I had a 3blade 9x3, it ran a little faster but with less rpms. Don't know if that helps but that was my experience.

Author:  Bayport [ Fri Jan 05, 2018 9:41 am ]
Post subject:  Re: 23.5 Kholer RPMs under load

I get 4000-4100 wot out of water
thx

Author:  CypressCritter [ Fri Jan 05, 2018 9:43 am ]
Post subject:  Re: 23.5 Kholer RPMs under load


Author:  brycecheramie [ Fri Jan 05, 2018 10:12 am ]
Post subject:  Re: 23.5 Kholer RPMs under load

Am I the only MF'er that wants to see a video of this 23hp, 29mph longtail with 2 people?!

Author:  Bayport [ Fri Jan 05, 2018 11:05 am ]
Post subject:  Re: 23.5 Kholer RPMs under load

WHOAH!!!!!!!!!!!
that should be 19 not 29
Sheesh
sorry

Author:  brycecheramie [ Fri Jan 05, 2018 11:07 am ]
Post subject:  Re: 23.5 Kholer RPMs under load


Author:  nuccifish06 [ Fri Jan 05, 2018 11:36 am ]
Post subject:  Re: 23.5 Kholer RPMs under load

:D :D :D

Author:  50fps [ Fri Jan 05, 2018 12:40 pm ]
Post subject:  Re: 23.5 Kholer RPMs under load


Author:  Bayport [ Fri Jan 05, 2018 12:50 pm ]
Post subject:  Re: 23.5 Kholer RPMs under load

that is what happened. picked up RPM but lost speed...need more RPM for the same speed.
My Q is...can that motor run at 3800 under load or is that too much for it?
In reviewing in the past I heard 3600.

Author:  brycecheramie [ Fri Jan 05, 2018 1:12 pm ]
Post subject:  Re: 23.5 Kholer RPMs under load


Author:  Bayport [ Fri Jan 05, 2018 1:20 pm ]
Post subject:  Re: 23.5 Kholer RPMs under load

ok great thx

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