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Posting a reply to: RE: 620/200 Vmax prop pitch

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Posted 12/14/2008 3:10 PM (#349751 - in reply to #349737)
Subject: RE: 620/200 Vmax prop pitch

Esox,

I have a 620 with 250 etech-ho.
It was propped from Ranger with a Raker II-22 pitch. I thought it was a dog out of the hole and top end was around 52mph. Rpms were to low.
I talked with Eric Olson from Evinrude and he instructed me to get an 8 inch Detwiler internal hydro plate. This is the exact setup he uses.
The boat screams now, hole shot is awesom and top end is 68mph plus, hammer down 5800-6000 rpms, full tourney load with my partner. I know I can get more if given enough lake to adjust and play with the plate.
You just have to play around with were the plate needs to be set at takeoff, once you find the sweet spot your golden.
Its like an entirely different boat since the plate was added.

Good luck

Joe