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8x4 or 9x3
http://www.mudmotortalk.com/mmt_v2/viewtopic.php?f=41&t=62492
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Author:  bojac [ Thu Jul 02, 2015 4:31 pm ]
Post subject:  8x4 or 9x3

I'm currently running an 8x4 prop behind a 16hp
I believe Go devil 16s run a 9x3. Would I get more rpm with a load using a 9x3?

Author:  CypressCritter [ Sun Jul 12, 2015 1:26 pm ]
Post subject:  Re: 8x4 or 9x3

I had a 16hp GD and ran a 9x3 2blade for mud and heavier load at 38-3900rpm@aprox 12 mph and 9x3 3 blade for open water at 3600rpm @ approx. 15 mph. the 2 blade was better for veggie and would crawl in the tough shit and the 3 blade worked ok but not a good in the mud and veggies! I would replace props when they wore down below 8" because loss of speed and digging power!
all on a 16x48 Lowe flatbottom,

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