Just wondering what prop you guys are running who have a 17' with a 115 4 stroke? i think that a pretty common combination now. This is what I posted to Ken at Prop gods:
I repowered my 1977 Mako 17 this summer with Suzuki 115 hp 4 stroke. it came from dealer with 14 x 19 aluminum prop. while i luv the quiet of the motor i am not as excited with performance. the boat previously had a 1996 2 stroke Suzuki 115 which ran great (until it didnt) with top speed of approx 45 and great hole shot. it was running a 13 1/4 x 17 stainless prop. (i think it was even mounted a hole low). the new motor has top end speed of about 35 ( i have lost about 10 mph). i get 6000 rpm but just barely ( it feels like it is lumbering to get there). hole shot is not good. it planes at about 3K rpm and by 3500 rpm i am going about 25 mph. by 4500 rpm it goes approx 32-ish. then, from 4500 to 6000 i gain maybe 3-4 mph. motor is at correct height. i have spring-loaded bennett trim tabs to prevent porpoising. any help you can provide will be greatly appreciated. Thanks!
I repowered my 1977 Mako 17 this summer with Suzuki 115 hp 4 stroke. it came from dealer with 14 x 19 aluminum prop. while i luv the quiet of the motor i am not as excited with performance. the boat previously had a 1996 2 stroke Suzuki 115 which ran great (until it didnt) with top speed of approx 45 and great hole shot. it was running a 13 1/4 x 17 stainless prop. (i think it was even mounted a hole low). the new motor has top end speed of about 35 ( i have lost about 10 mph). i get 6000 rpm but just barely ( it feels like it is lumbering to get there). hole shot is not good. it planes at about 3K rpm and by 3500 rpm i am going about 25 mph. by 4500 rpm it goes approx 32-ish. then, from 4500 to 6000 i gain maybe 3-4 mph. motor is at correct height. i have spring-loaded bennett trim tabs to prevent porpoising. any help you can provide will be greatly appreciated. Thanks!
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