92 Glasstream 17V w/115 jackplate SETUP HELP

JgarrettS86

Cadet
Joined
Jun 25, 2011
Messages
7
I just purchased a 92 Glasstream 17v fish and ski with a 98 Johnson 115 fast strike engine. The boat has a jackplate and 13.5x22p raker prop. With me and my gear and half tank of fuel im getting 53mph (gps)@ 5800 rpm. My question is this.... my prop shaft is set at 7.5" below the pad of the boat which seems a bit low to me. Does anyone have this same boat and setup that could give me some advice on jackplate setting that I should be running? I tried it at 4.5" below the pad and the mph fell to 49mph and the rpms went to 6100-6200 which is overrev for this motor. Any help?
 

turnerlittle

Cadet
Joined
Feb 16, 2011
Messages
23
Re: 92 Glasstream 17V w/115 jackplate SETUP HELP

well set up on a boat is trial and error so i would pick it up a half inch if that losses speed drop it down an inch
 
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