im currently running 32x18 four blade merc cleavers on my #5's with 850hp, has anyone ran 5 blades with same type of power? I also have 32x17.5 but i'm lossing curise speed and i can spin the crap out of them coming out of the hole. with the 32x18 my cruise speed is about 65 at 3400rpm and top end about 100 at 5200rpm, can i do any better or should i just leave what i have?

I had a 1998 37 OuterLimits (great boat), side-by side bravo boat, best ever speed with 5 pob was 114, about 860hp per side at time.

Seems like your top end should be much faster than 100 with 850/side, even with the extra weight of the transmissions and #5s.

32x18 at 5200rpm at 100mph? What is you drive ratio?

drive ratio is 1.48

1.48 drive ratio, 5200rpm, 100mph, 32 prop
thats 6% slip! can't be right!

1.48 drive ratio, 3400rpm, 65mph, 32 prop
thats 8% slip! can't be right

check your data, I would expect more rpm to get those speeds with a 32 prop, with 1.48 ratio

What rpm range is the motor built for? What is the rev limiter set at?

Its a great boat at any speed, but I am thinking 110mph for #5s and 860hp a side. Remember the 37 with 900sc, #6 runs 117ish.

Post a pic of you ride.

Are you sure about your gear ratio, dont know that much about #5's. Your slip is very low, like 6% . Had a 37 Quad step with 6's. 12-14% was as low as we ever got our slip.

BB, something must be wrong , I have 820's with #5's 37 single step and I'm going a little more than that at 5800 wot. 17.75x32's 4 blds side by side with 29 centers..

mine is staggared

Talk to JoeD on here. He has tried a number of props on his 37OL 5 blades and 4 blades.

Hey appsyscon, I now own that 98 OL and running not quite at that speed but close. Approx 850 hp

Here is a current photo