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Old 07-25-2014, 01:13 PM
Bushwacker Bushwacker is offline
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Join Date: Feb 2007
Location: N. Palm Beach, Fl.
Posts: 2,456
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Quote:
Originally Posted by GameOnSalmon View Post
Hey Guys,
What height are you running your Cavitation plates on your 23'
Sceptres. I have seen a couple posts saying that this hull likes at
least 2 Inches High above the bottom of the Hull... I am wondering
if its possible to get Great Performance with the right prop at 2 1/2". . .
I think you'll need to be quite a bit higher if bracket setback is 29". Not sure how much this applies to a 23, but I've found that the "raise motor 1" for every foot of setback" rule-of-thumb that's often quoted for brackets is WAY too conservative for my 20! Optimum motor height per BRP is when the AV plate is above green water when you're up on plane and fully trimmed out. Picture below shows the AV plate on my 25" motor at 3.5" above keel BEFORE I had Don Herman redrill the motor mount holes on the bracket to raise it about another inch! And it's STILL too low! Needs to come up another inch for top of AV plate to be above green water, so that would put me somewhere around 5-5.5"! I have to admit that I only picked up about 50 rpm and 0.5 mph with the last raise so another inch might not make much difference, but I'm sort of a perfectionist when it comes to engine performance, so it kinda bugs me if there is any more splash and drag than necessary!
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'72 SeaFari/150E-Tec/Hermco Bracket, owned since 1975.
http://i188.photobucket.com/albums/z...Part2019-1.jpg
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