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 Rpm loss 
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MMT Pro Member

Joined: Mon Sep 07, 2009 1:46 am
Posts: 200
Post Rpm loss
Hello to all. I am very new to mm world although I have dreamed of having one for quite a while. I recently bought a 16x48 weldbilt hull, cc, with a 35gtr. When I purchased it the boat motor and trailer had 25 hrs on them. The prop was a 11x9p and my rpms were around 4250 max but ran best around 4100. Running around 26-27 2 men and 22-23 3 men. I put the big blade on and noticed my rpms were now around 3700-3800 max. Same speeds but better performance. My question is, is there a way to get more rpms back without mods, and what are they recomended rpms without mods anyways. What can I do here guys. I am already a big fan of all of you as you all seem to be knowlegeable. Thanks for any help guys.

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1854 Extreme CC w/ a 35 GTR a do everything machine!!!!


Tue Sep 08, 2009 2:04 am
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MMT Elite Member
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Joined: Wed Jan 14, 2009 7:23 am
Posts: 6233
Location: Tarkington, TX
Post Re: Rpm loss
With my Stock GTR and the 12x10 prop I see 3850-3900 with no load in boat, and about 3750 with a heavy load. Thats about right for a stock motor.

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Bayou Surface Drive
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Tarkington, TX 77327


Tue Sep 08, 2009 7:03 am
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