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hi


You are replying to:
Lone Stone
Posted 7/1/2012 10:41 AM (#568525)
Subject: 690vs/150 merc prop help




Posts: 477


Location: Iowa
I finally got out today to try the Enertia 22pitch I borrowed, the vent holes were plugged solid. Seemed to get on plane quickly-better than I thought it would. I was loaded with my typical load, with full tank of gas and empty livewells.
RPM's MPH
3000 25 would hold plane here
3500 30.7
4000 36
4500 39.9
5000 45
5200 This is where it seemed to want to run. If I trimmed more it would blow out.
I did it get it to hold once and 48.4 mph. I did notice it did not take the corners as well as the HI 5 23 pitch that has been on the boat. But I could get more speed from the HI 5. Probably because it was hooking up better at more trim. I can almost trim all the way out with the HI 5, but just over half way with the Enertia.
I then filled both livewells with the following results.
RPM's MPH
3500 31.4
4000 37.3
4500 41
5000 47
Top speed with livewells full was 48.2 mph. Hole shot was real close to the same, and it seemed to hold just a little longer before blowing out while trimming.
Strange to me that my speeds picked up with more weight in the back. More bow lift? Holding the motor lower in water to get better bite? I can only raise motor 1 more hole. Maybe I need to drop it. They had a 21P Tempest I can borrow too, might try that one next weekend. Any other suggestions or experiences. I want to try a 23 tempest, but think it might be too much. This is my first experience playing around with props, so I am open to advice.

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