Prop on Yamaha F225 - Pushing a Hurricane 211 Deck Boat

[Angler1]

Hello,

I have a Hurricane 211 with a Yamaha F225. I would like to try to improve all around performance and top speed. The F225 has a stock Yamaha 13-3/4 x 19 propeller. This is the black painted Stainless steel prop.

Not sure of my top speed but would estimate in the low 40 mph. However, engine RPM's even with a heavy load are at 6000 to 6100 RPM at WOT. I'm not sure if the rev limiter is maxing out, since 6100 RPM is over the operating range and weight doesn't seem to affect rpm.

I expect I can increase pitch, possibly two inches and keep WOT RPM above 5600-5800 RPM. I'm considering putting a Reliance Series Stainless Yamaha prop at 13-3/4 x 21. But I am also wondering how a Yamaha Performance series prop with a larger diameter might perform. Specifically a 14-1/4 x 20 prop. Those familiar with this 20'-10" boat know it's not exactly a light boat.

My questions are...what do you think?

And if anyone else has a 211, or an F225 on a similiar weight/size Hurricane/boat, how is your boat propped?

I can't find much detail on this boat with the F225. Seems most configurations have the F150.

Any feedback appreciated.

 

[steelespike]

Re: Prop on Yamaha F225 - Pushing a Hurricane 211 Deck Boat

Without an accurate gps speed we can't tell if your tach is accurate.
From your description I would suspect the tach.
6100 at 2.00 gear ratio and 10% slip computes to about 49 mph.
While the 19 may be near the bottom of the sizes without an accurate speed
I don't know if I would be buying a different prop.

 

[cooleyo]

Re: Prop on Yamaha F225 - Pushing a Hurricane 211 Deck Boat

Ive got the same rig, but propped 14-1/4 x 21. My best GPS speed has been 38mph at 5000rpm, loaded. 5k is about the best I can get trimmed until my speed doesn't increase any more. As soon as I can save the money I plan to buy a 4 blade 14-1/4 x 17. Speed isn't much of a concern, and I figure getting the RPMs up closer toward 6k my top end shouldn't take too bad a hit.

 

[Angler1]

Re: Prop on Yamaha F225 - Pushing a Hurricane 211 Deck Boat

Thanks colleyo,

That's interesting. So your only getting 5000 rpm at wide open throttle with that prop? Sounds like I'll have to be careful with increased diameter or increased pitch. Good information with the same rig. Thanks.

 

[steelespike]

Re: Prop on Yamaha F225 - Pushing a Hurricane 211 Deck Boat

He says he's at 5000 loaded. 38 at 5000 indicates about 23% slip. Thats more like a hard to push pontoon kind of slip.
Would be interesting to see the wot rpm and speed with a light load.Some of that slip may be from too much pitch.
Cooleyo,Is your speed by a gps? At a more normal 10% slip Speed would be about 44.
The 211 doesn't strike me as a really heavy boat at 2650.

 

[Angler1]

Re: Prop on Yamaha F225 - Pushing a Hurricane 211 Deck Boat

The 211 is supposedly about 3800 wet and that's probably close with my whole rig on the scale. From your comment, I think you're right that I'm not ready to test $400 props. Especially with cooleyo's info. My tack seems accurate in so far as idle is about 800 and reads that, and tach to rpm/plane/power band, etc., "feels" accurate. Unfortunately, have the boat out of the water and winterized, so can't get any GPS speed data. But thought I'd start some research and launch in the spring with a new prop perhaps. Sounds like if I shoot from the hip I shouldn't add but an inch to pitch in a better technology prop. And diameter is still a question since it seems yamaha steps up 1/2 inch in some of their performance props. Darn, might have to wait.

 

[steelespike]

Re: Prop on Yamaha F225 - Pushing a Hurricane 211 Deck Boat

Diameter is generally a secondary consideration.You may note that usually as pitch goes up diameter goes down.
Of course there are exceptions.
If a prop is intended for your motor and setup the the diameter will be correct.
Sometimes diameter can assist in a problem application.

 

[airdvr1227]

Re: Prop on Yamaha F225 - Pushing a Hurricane 211 Deck Boat

Have you checked here. They don't have Hurricane but you might find a similar weight boat.

http://www.yamahaoutboards.com/owner-resources/performance-bulletins

Or here.... http://www.hurricaneboats.com/performance-tests

 

[Angler1]

Re: Prop on Yamaha F225 - Pushing a Hurricane 211 Deck Boat

Yes, airdvr1227. I did check that out and my boat is on the list as the Fundeck 211. Same boat, but the test they have is with an F150. The F150 in this test is propped with a 14-1/4 x 17 and from the chart, looks like it's getting 42-43mph at 5800rpm. I can't help but think that the 225 on mine, should push it closer to 50mph. And I know I'm not getting that.

steelespike, would this f150 test on yamaha's site help with projecting what the f225 might do on the same boat? Or help with projecting an ideal prop?

 

[cooleyo]

Re: Prop on Yamaha F225 - Pushing a Hurricane 211 Deck Boat

He says he's at 5000 loaded. 38 at 5000 indicates about 23% slip. Thats more like a hard to push pontoon kind of slip.
Would be interesting to see the wot rpm and speed with a light load.Some of that slip may be from too much pitch.
Cooleyo,Is your speed by a gps? At a more normal 10% slip Speed would be about 44.
The 211 doesn't strike me as a really heavy boat at 2650.

Yeah, the 38mph is per GPS. I'm seeing more like 45 on the speedo. I've got my eye on the Revolution 4 over at propgods.

 

[Angler1]

Re: Prop on Yamaha F225 - Pushing a Hurricane 211 Deck Boat

My bad. I just looked at the Hurricane performance reports again, and there is a Fun Deck 211 with an F225. The F150 test I looked at a while ago is called the Sundeck Sport (don't know why they change the names..all the same boat). Thanks for reposting airdvr1227

But the F225 test shows 15-1/4 x 19 prop and maybe 45mph at 5600rpm.

Now I'm more confused. And seems props are all over the place on these things. Maybe still enough data for a projection?

 

[jestor68]

Re: Prop on Yamaha F225 - Pushing a Hurricane 211 Deck Boat

My bad. I just looked at the Hurricane performance reports again, and there is a Fun Deck 211 with an F225. The F150 test I looked at a while ago is called the Sundeck Sport (don't know why they change the names..all the same boat). Thanks for reposting airdvr1227

But the F225 test shows 15-1/4 x 19 prop and maybe 45mph at 5600rpm.

Now I'm more confused. And seems props are all over the place on these things. Maybe still enough data for a projection?

That is a SUNDECK Sport SS 211 test report; not a FUNDECK. They are two completely different boats.

The 211 is the one with a center console arrangement. Is that the one you have?

Look at the diameter(s) of the props being used on the like size/power boats. They are all 15-1/4 or 15-1/2 diameter X 17 or 19 pitch.

Whoever put that 13-3/4 X 21 prop on your boat with a 2.0 gear ratio is poorly informed.

According to the Yamaha prop charts, the 13-3/4 X 21 is an aluminum prop. The painted SS prop is a 14-1/2 X 21.

 

[Angler1]

Re: Prop on Yamaha F225 - Pushing a Hurricane 211 Deck Boat

Yes Jestor68, mine is the center console. The prop on my boat is 13-3/4 x 19, not 21. Perhaps keeping pitch and changing diameter to 15-1/2 is what she needs. From about 5500 to 6100 RPM, you can't really feel her picking up speed at the same rate from, say 4500 to 5500. Perhaps I'm just getting too much slip with the 13-3/4 and it's not a pitch problem.

 

[steelespike]

Re: Prop on Yamaha F225 - Pushing a Hurricane 211 Deck Boat

I think in the spring borrow a shop tach use your gps and confirm the tach and wot speed.

 

[Angler1]

Re: Prop on Yamaha F225 - Pushing a Hurricane 211 Deck Boat

Agree. I'm going to delay any purchase until I run it a few more times and gather better data in the spring. All this has been helpful however in building a framework for possible configurations. Appreciate it.

 

[jestor68]

Re: Prop on Yamaha F225 - Pushing a Hurricane 211 Deck Boat

Yes Jestor68, mine is the center console. The prop on my boat is 13-3/4 x 19, not 21. Perhaps keeping pitch and changing diameter to 15-1/2 is what she needs.

That is exactly what she needs. The boat tested(identical to yours) had a (as tested) weight over 4000 lbs. You need a prop with at least 15" of diameter to efficiently move that weight.

Both 15.25 and 15.5 dia props tested showed 8% slip.

These were Yamaha's Salt Water Series II SS props. A Solas Lexor SS is basically the same prop; probably less money.

 

[Angler1]

Re: Prop on Yamaha F225 - Pushing a Hurricane 211 Deck Boat

Thanks jestor68. I use the boat to run fishing holes 90% of the time. I was inclined to avoid the drag of a larger diameter prop and shoot for best speed with pitch, since never pull ski's or tubes. But all this data has been very helpful. Sounds like speed and "pull" power, and handling, may all be improved increasing diameter only. Without the help I would likely have went up a couple inches in pitch only and been disappointed with worse slip. Can't do much with a prop now until spring, so I think I'll take steelespike's advice and confirm GPS speed and tach readings before buying. (Darn, that was going to be my Christmas gift to myself.)