Johnson 75 Stinger outboard

[BayCity17]

Does anyone have experience with props on a Johnson Stinger 75? (1972)
It is on a 15ft 69 Galaxy tri hull.
The motor looks like it has a omc workhorse prop on it currently and seems to need a change. Just looking for a little more performance out of the old beast. Any suggestions on what props work well would be great.


Thanks

[PIP]

i imagine its a heavy boat, a 13 x 15 might be all you can do. get a tach and if only spinning around 5k, i think you need to step down further. if she is really turning up, try a 13 x 17, but my guess is, it isn't.

i just realized, it is a stinger, do you know if it is the 15 inch or 20? the 15 is geared higher than the 20, so the props i mentioned above are probably too much on a heavy boat like the galaxy. if it is a 15 inch, you can get a nice chunk of change for it and use that money to put a v-4 evinrude on it and have money left over.

[BayCity17]

Its the long 20" with the big gearcase i believe. The boat is fairly wide but not too heavy for a 15ft. I haven't installed a tach yet. I just feel like there is a little more rpm and speed to be had..
Thanks,
Jim

[Mark75H]

I think you should buy a tach before a prop.

The Galaxy is on the heavy side for 15 foot trihulls

[Powerabout]

there wasnt a 75hp engine in 72
do you have the model number or a photo fo the powerhead

[BayCity17]

Ide have to check the numbers to make sure it is a 72? Iv'e seen 65hp stingers from that era also so its possible thats what it is. Probobly a tach would be a good idea. Before trying props.
tHANks for the input>
Jim