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Old 12-19-2008, 07:23 PM
diver429 diver429 is offline
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Join Date: Jan 2007
Posts: 16
Default Re: Need ideas to stop porpoising?

Thanks for your input guys.The boat is on land now, and just yesterday I went down to the boat to cover it before the storm and I took some measurements. I put a straight edge on the bottom of the hull extending out to the cav. plate on the lower unit and I measured 2 1/4 inches from the bottom of the hull to the cav. plate. According to the tech from armstrong he said for every foot your motor is away from the boat you have to go up 1 inch from the bottom of the hull to the cav plate. My motor is 38 inches away from the boat, so according to my measurements I should be 3 inches above the bottom of the hull. Right now the motor is 2 1/4 inches so that tells me if I go up 1 hole then I should be at the exact height. Every hole on the motor is 3/4 inches apart. So I m going to raise it up 1 hole and hope for the best. The prop is a mirage prop 14 3/8 x 15. And you guys think thats the right prop. I guess after hearing the numbers that gary was getting with the walkaround I was hoping to get atleast the high 30,s out of the motor at wot. But like you said frank that hardtop and radar arch has some weight to them. any more input would be appreciated, thanks guys. Peter
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