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Max Prop Speed?

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What is the Max RPM you can spin a 4 blade warp drive prop?
I have it on a direct drive chevy 350.
Warp drive does not have this info on there website, not that I can find anyway. I sent them a email asking but have had no reply yet.

Please only those that know for sure reply.......
Thanks, Gary
 
What is the length of your prop this dictates what RPM it can turn before the tip's become super sonic. I just set my pitch and max RPM by how I want the boat to perform.
 
the prop is a 66in 4 blade ..I was playing with that prop tip speed calculator on warp drives web site and it is telling me to spin it at 3600.
that gives me a mach speed of the tip at .90 and 709 mph. at 85 deg. ambeint air temp.
it said the best tip speed was mach .88 to .92
but 3600 RPM sounds a little fast????

Gary
 
Just because you can turn it that hard why do it. Turning them props high RPM's is only good for racing. I ran a 80'' ten blade Warp Drive for years and everybody asked me what I turned it I just said at the RPM the boat runs best at. With that size prop your sweet spot will be somewhere between 3200RPM to 3,500RPM you just need to play with your pitch untill you find where YOU LIKE how it performs! I personaly like to run a little more pitch then most people.
 
Thanks for the info.
The problem is: I had the boat in deep water for the first time and it was very hard to get the boat on plain. It would spin the prop only 2500 or so chugging alone in deep water. The only way I could get it on top of the water was with a stiff breeze to my back. once it came up on top the boat takes off like a bat out of hell. So I'm thinking there is too much pitch and if I spin the prop a little faster it will get up on top of the water better.

Muddfish
 
2,500RPM aint going to do much. I would take out some pitch and try running 3,000RPM and then take baby steps from there. A cool trick to save you time and I found actually helped make the prop broader is run a degree more in half the blades if you have an even amount of blades. This will also save you time when your testing instead of taking out a degree from each blade take two degrees out of two
 
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