Stainless Steel Prop Question...

[DoubleGobble00]

I bought my boat used and it came with an aluminum prop. I done bent it up pretty bad. Some dang structure off the north Fannin Landing got me last year. Anyway, I want to start looking at stainless steel prop for my boat. The only marks on my current prop says 21K so I assume the pitch is 21. I need to measure it to see the diameter..

So... reading up on props I see that the pitch needs to be right for the boat and weight of the boat. I have heard to go down one inch in pitch for SS but don't know if that holds true. Any info on this?

I guess I could just get my prop fixed or buy a new one for about $70. The SS seem expensive. Yall got any info on where a man can get a used SS prop or a good deal?

My motor is a 2007 Yamaha four stroke 90 HP (F90) and my boat is a 1860 G3 with a good bit of weight due to the 2 - 82 lb Trojans in the back... plus one interstate 24.

Thanks,

DoubleG

["G"]

I like stainless steel props....they are worth every penny. I always replace the aluminum one with the same size and pitch in stainless .....thats been recomended to me by three boat dealers now. Never has exceeded the max recc. RPMS

[C N]

STAINLESS........... accept no other! Keep an old aluminum one for a spare. We tried out a couple of used ones to get the right pitch for our boat and then ordered new.

[Wannabe...]

General rule of thumb on big motors is SS will let you step up in pitch by 1". This may not hold true for mid sized motors - dunno. The 21 you've got can't be measured with a ruler, the 21" desribes the rake or cork screw in the prop and can only be accuratly measured by a prop block. All else being equal, a SS prop is more efficient due to less flex in the blade translating to less slip and more power being put down. You should also see a quicker hole shot.

As far as which prop to go with - go by a good prop shop...one that specializes in outboard props. Most of any size will let you try before you buy. As G said, never under prop a boat and over rev your motor. Not sure on your motor, but most Yammie 4 Strokes want to be propped at 5500 which is mid point of the recommended range. There's the sweet spot. It sorta like having a 363 Stroker with a 1 speed transmission. You've got to find what works best for the largest range of how you want to run. Prop for top end, and hole shot stinks. Prop for hole shot or load carrying and top end stinks. Prop for handling in turns and one or the other or both stink. Shoot for the middle in most situations.

The Prop Shop in Jackson will let you try before you buy, but given the quantity of boats similarly rigged to yours, a high volume G-3 dealer could prolly tell you without thinking which prop would be a good one for your rig.

Wannabe...

[majflyboy]

Stainless for sure Zack. There's a prop shop in Pearl that has some used ones and Art's place in Ridgeland.

[torch]

I run a 21 on an 1860 with a 115.

[Minnerman]

I also run a 21 on a 115 two stroke. 21 seems a little high fer a 90.

[Wannabe...]

It does don't it Minner. But the G3 is a light boat, so I didn't mention it.

Wannabe...

[crappiholic]

I run a 23P SS on my 150. Go by C&S on Lakeland and see if they have a 20P. They are open and selling everything.

[duckhunter]

Stainless for sure Zack. There's a prop shop in Pearl that has some used ones and Art's place in Ridgeland.

i was gonna recommend art, he rebuilds props also........did mine once, on hwy 51