Prop info on 94 Nitro 180TF w/ Evinrude 115

[kensewell]

I have a 94 Nitro 180TF with 115 hp Evinrude. 

It came (used boat) with a 17 pitch stainless steel prop. 
With 3 adults, it has a very slow hole shot (even trimmed properly) but with one or two people it runs over 6000 rpm at 3/4 throttle and way too many rpm at full throttle.   It is also very slow (according to GPS) running 32 mph at 6500 rpm. 

Given the high rpm and low mph, I think I need a much higher pitch prop - but the awful hole shot seems inconsistent.   

Looking for any suggestions or info on how others have similar rigs set up . . . there must be a lot of mid 90s 180TF Nitros out there.  What pitch props are you running???

[BassBUFF]

Based on your numbers for WOT, it sounds like you should be running at least a 21p prop. The holeshot with 3 people and gear won't be great with that 115. What is your prop to pad measurement (how far below the pad is the propshaft in inches)?

[BlackCat]

I wouldn't put a 21p i have the same boat and motor and iam running a 19p. I tried a 20p racker and I had to walk to the front of the boat so it could plan out and that was with only me in the boat!! Personally I would go bigger than a 20p!!

Nitro should have never sold that boat with a 115!! Boat weights way to much for a 115 but hey thats just my opinion!!

[evelynherron]

Well, I've got the best propellers for my 1994 20' nitro from the Prop Selector by Mercury Marine for selecting the best propellers for you nitro. With there propeller finder, you'll be able to find the most ideal prop for your boat.

[big bill]

I went thru this with my 1996 170Dc. tryed 5 props out (21 to 17) when we repowered it with a 2008 omtimax 115. ended up using an stainless 17 3/4 prop with a light cup to it. has a great hole shot with full load on it.