Agree....at 5850 they're too high for a repitch. Send the prop to Mark Croxton and ask him to do a repair. Include WOT rpm and GPS speed in the repair notes.Originally Posted by Nova Kaw 650
Agree....at 5850 they're too high for a repitch. Send the prop to Mark Croxton and ask him to do a repair. Include WOT rpm and GPS speed in the repair notes.
I don't understand what you mean by a lot of slip? is 5800 RPM bad? Or the combination of RPM and MPH is off and meaning something is slipping?
edit double post...computer froze
Last edited by JR19; 02-04-2019 at 12:07 PM.
"Target" prop slip is 8-12%. At 15% or above something needs to change in your setup because you are wasting energy. Extremely hard to get below 8% because you will have a small amount of slip. Even the most efficient props made have a small amount of slip. I don't know what gear ratio your motor has but most V6 150-300 HP motors have a gear ratio close to 1.85. If your 115 has a gear ratio of 1.85 or even a close number to that your slip numbers are above 20% hence you are wasting energy. In order for a prop slip calculator to be accurate you must know CORRECT rpm, GPS speed and pitch.
Click on link and scroll down...Run your numbers...your high on slip
http://www.mercuryracing.com/prop-slip-calculator/
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