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Post by rlazar on May 19, 2020 10:37:49 GMT -5
OK, still dont know how a prop, whether it can be returned or not, would justify $2000 to gain 5 MPH or 5% better fuel economy? $2000 can buy a lot of fuel? As I have inboards no reason to comment further. If you guys ever get these props let us know how they performed! PS: Glad to see the POTUS using the new unproved drug for two weeks that the FDA indicates it has no positive effect on the COVID19 other than possible heart arrhythmia that would be life threatening? Hope he can give us some more personal info in the following weeks. Over the lower band it should be more than 5% gain. Even if the fuel economy gain is minimal there is more to it. Supposed to offer better handling and less vibration. On my boat there are only 3 props with 3 blades each and it’s a lot of boat to push around both at low and high speeds. I’m looking for the increased performance and pushing more water at lower speeds. My OEM props cost about $700 each. I previously looked into getting a set of 4 blade props there is more down side with little upside gain for my setup and what I’m looking for. If the Sharrow props do what they say then it will be worth for me. However that needs to be proven which I will be able to do. My wife says we have nothing to lose since we have the 30 days money back offer.
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Post by rlazar on Apr 6, 2021 22:29:36 GMT -5
Update.. I spoke with the Sharrow people today. We set up an appt for them to come out in a few weeks and prop my boat. The props are not off the shelf ready to buy yet but then will be coming out to my boat and installing a monitor so we can get a baseline of my current setup. We will then install the Sharrow props and go through the testing again and have full metrics (before and after) to compare.
We spoke for about an hour today discussing some of my current numbers, characteristics and what areas I’m looking to improve on.
On the one hand it’s very early in their production lifecycle but on the other hand it’s super cool their engineers will be coming to my boat and working with me directly.
More to come.
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mdj67
Full Member
Posts: 37
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Post by mdj67 on Apr 7, 2021 7:10:55 GMT -5
Please keep us posted - inquiring minds . . .
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Post by partizancudjoe on Apr 7, 2021 15:32:09 GMT -5
It has been a year now since folks first posted this thread. Has anyone actually used a Sparrow prop? Can anyone offer experiences with them and comparisons to them vs. other props?
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Post by rlazar on Apr 7, 2021 15:51:29 GMT -5
It has been a year now since folks first posted this thread. Has anyone actually used a Sparrow prop? Can anyone offer experiences with them and comparisons to them vs. other props? See my earlier post. The Sharrow Props are not commercially available yet. In the next 2 weeks I will be working with Sharrow on propping my boat and recording metrics with the baseline ( what I have now) and with the Sharrow props. I will relay with more details once we get started.
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Post by kdubya on Apr 7, 2021 20:03:46 GMT -5
Giddy up! Can't wait for your report.
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Post by autobahn on Apr 8, 2021 9:59:49 GMT -5
I think it's $9000 for twin outboards . . .
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Post by rlazar on Apr 8, 2021 10:13:16 GMT -5
I think it's $9000 for twin outboards . . . That was the price for the SS ones cut from a solid block. You can now get these from a mold for 2K a piece. Still very expensive but significantly less that the original props.
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Post by autobahn on Apr 8, 2021 11:46:22 GMT -5
Wow! I never thought $2000 for a prop would be cheap but that is significantly cheaper! After reading this thread I went to the website and for both the MX-1S and MX2 they were $9000 for a pair (Twin engines). Not that I am ready to pull the trigger (since I don't even have a boat yet) but how do you get the $2000 price to show up in the cart? Must be a huge discount code somewhere.
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Post by rlazar on Apr 8, 2021 11:48:52 GMT -5
On a side note, I think one of the biggest problems on the Yamaha 300hp HP outboard is how the exhaust is vented when going in reverse. This disturbs the water around the prop and causes a significant lose of bite when in reverse. This greatly effects the efficiency of the joystick for docking. To help overcome this the RPMs are increase under reverse joystick which increase the cavitation and causes lots of vibration.
Yamaha has now finally solved this problem on the 425's and will be doing the same on the 2022 300's. Now in reverse and under a certain rpm limit, the exhaust is rerouted so as not to disturb the prop. I heard the difference is dramatic. That's all well and good but does not help me with my 2020 300s. I am hoping with the increased bite of the sharrow props and ability to push more water at lower RPM's I can see a significant improvement in my joystick docking and virtual anchor/hold etc.
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Post by rlazar on Apr 8, 2021 11:59:52 GMT -5
Wow! I never thought $2000 for a prop would be cheap but that is significantly cheaper! After reading this thread I went to the website and for both the MX-1S and MX2 they were $9000 for a pair (Twin engines). View AttachmentNot that I am ready to pull the trigger (since I don't even have a boat yet) but how do you get the $2000 price to show up in the cart? Must be a huge discount code somewhere. Scroll down further... the "less expensive" ones are SS machine cast SHARROW MX-1R. $2000 a pop. If you look at the message boards like "THE HULL TRUTH" there are all kinds of nay sayers and believe this is snake oil stuff. They do have a 30 day money back guarantee however. In my case I not only got to speak with Greg (the inventor of the prop) but they are also working with me in terms of real world testing on my Regal 38XO. They said they will give me access to all the data/numbers as well and I will be with them during the baseline and sharrow props tests. So honestly I will know first hand how well these work or not. I have also recorded my own metrics on my current set up, speed, fuel burn, RPMs under different ranges so again I will have an idea of the difference when using the Sharrow props.
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Post by autobahn on Apr 8, 2021 18:09:30 GMT -5
Ahhhh, I see the problem. The MX1R goes up to 300 hp. For the twin 425’s I would need one of the other more ridiculously priced props!!!!!! ☹️
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Post by rlazar on Apr 20, 2021 8:30:10 GMT -5
Update... I sent the metrics I captured last season to Sharrow and they said that was enough info so start out with in terms of getting a set of props ready to test. As such they are now going to come out to my boat next month and bring a set of Sharrow props with them. We will do the base line tests on my existing props then switch to the Sharrow props and run the tests again. So looks like it will be another month before I have anything concrete to report.
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Post by rlazar on Jun 10, 2021 9:57:46 GMT -5
The Sharrow people will be coming to my boat June 22nd so we can first record the metrics using my existing saltwater series 2 props, then we will swap in the Sharrow props and re-run the tests. I'll keep you all posted on the results.
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Post by rlazar on Jun 21, 2021 13:11:29 GMT -5
Tomorrow, June 22nd is test/demo day for my Sharrow props. Weather may be kind of dicey so I'm hoping the rain holds off at least in morning.
1) Will connect their monitor to my NMEA backbone. 2) Record baseline numbers with my existing salt water series 2 props 3) Swap to the Sharrow props and re-run the sames tests.
4) I will report back findings and my impressions.
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