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Viper or Rebel

Old 03-15-2019, 03:40 AM
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Default Viper or Rebel

Boat is ready, motor was tested and dealer recommends the Viper 15x14 based on the WOT RPM 5500 vs the Rebel 15x15 only getting 5000 RPM WOT. Most of what I read suggest the Rebel is a more fuel effiecent prop. Would prefer the Rebel, what do you think? Viper is closer to the max WOT Vs Rebel.

Boat is 2004 Striper 2101CC 2800lbs dry and mounted in the 3rd hole, 4th was too high. I generally fish with 4-6 people 3-20 miles offshore

New Evinrude G1 150
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Old 03-15-2019, 04:32 AM
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If a 15” rebel only gave 5,000 rpm then your only choice is the viper as the rebel starts at 15” and go up. A viper will turn more rpm size for size with a rebel. You could try other brand props also.
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Old 03-15-2019, 05:42 AM
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Originally Posted by Hydrarude1750DC View Post
If a 15” rebel only gave 5,000 rpm then your only choice is the viper as the rebel starts at 15” and go up. A viper will turn more rpm size for size with a rebel. You could try other brand props also.
I took advantage of the Free Prop offer by Evinrude from the NY Boat show. At worst, I will start with this prop and/or keep it as a back up even though I still have an SST 15x15 from my older motor I sold. Just wanted to see if I should take the Rebel because it is designed to be a more fuel efficient prop vs the Viper or the WOT RPM is more important in this case.
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Old 03-15-2019, 05:47 AM
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Don't matter how fuel efficient the Rebel is if it's not hitting the recommended rpm range. Lugging the motor will do more harm then good. For your motor the recommended max rpm range is 5400-6000 and optimal range 5500-5750.
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Old 03-15-2019, 06:19 AM
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You may want to try an Evinrude SSP 15" prop. It may not have quite the top speed as the Viper but it should accelerate better and improve the cruising economy for offshore running.

A Rebel prop with its larger blade area performs more like a Viper or SSP of 2" greater pitch
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Old 03-15-2019, 06:25 AM
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I had an '09 Proline 20 sport w/hardtop and a 150 G1. 2600 # dry with it mounted as high as it could go. Tried a 15p rebel and, like you, only got 5k. 17p viper only got 5200 and was terrible for that boat. 15p enertia was best all around getting 5600 rpms and 41-42 mph.
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Old 03-15-2019, 08:41 AM
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OK, I ask the dealer to test again using the SSP prop and if he has an Enertia prop as well. The SSP or Viper prop will be free but the Enertia will cost me maybe $600. I will follow up when I hear back.
thanks
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Old 03-15-2019, 11:52 AM
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Also remember Ken from Propgods saying the Quicksilver Q3 was the same prop as enertia. Just less money.
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Old 03-15-2019, 07:46 PM
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I run a 15x15 Enertia on my boat now after trying a few other props. I would recommend it especially with a heavier boat for a 150hp you are running. I have great mid range cruise, and stay on plane at a slightly lower speed. If for some reason the 15 pitch is still too much to get you into the correct rpm range, they make a 14 pitch also. I picked up my Enertia on Ebay for $300.00 shipped. I installed a Solas hub kit that I had from trying some of their 3 and 4 blade props.

Stephen
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Old 03-15-2019, 08:54 PM
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Subscribed as I think my dealer got me a 17p.
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Old 03-16-2019, 08:24 AM
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Originally Posted by muffinman51432 View Post
Subscribed as I think my dealer got me a 17p.
motor installed and tested? Any numbers to post?
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Old 03-16-2019, 09:09 AM
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I run a Rebel 15 pitch on my 22 Outrage/250hp Gen1 ETEC. Tried several other props (older SST's mostly of various pitches) but the Rebel gives me the best overall performance.
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Old 03-16-2019, 05:43 PM
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Take the free prop - sell it - apply funds to buy a prop that gives the RPM needed?
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Old 03-17-2019, 01:46 PM
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Originally Posted by CNC Boater View Post
Take the free prop - sell it - apply funds to buy a prop that gives the RPM needed?
It’s a possibility. Or at worst, I’ll keep it as a spare. Will also teat the SST 15x15 I have as well and see what numbers I get.
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Old 05-05-2019, 03:09 PM
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Took the boat out for the first time. Had 3 guys and a full tank of gas. Full live well (caught 4 keeper cod) Boat gets on plane fine BUT....
4200 RPM - 24 MPH
5500 RPM - 33 MPH

Its kind of slow but I figure the Viper prop isn’t the best prop for my set up. It was the only Prop that got close to max rpm at WOT And it was FREE. Motor mounted 3rd hole, dealer said 4th was too high when they tested it.

AV plate is NOT completely out of the water, Ken from propgods said it didn’t look too bad by the pictures/video I sent him. Recommends the Enertia 15x14.

I’ll run it as is since the motor probably has less than 3 hours on it. Will wait until it hits the 20 hour mark and report back

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Old 05-05-2019, 03:23 PM
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I have a set of the new RX3's , not sure when they will be officially released but they are a new large blade 3 blade. Doing some prop testing with them vs the RX4.


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Old 05-05-2019, 03:47 PM
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I played with props on my Seaswirl 1850 w/ 115 E-Tec.






Here's size, speed in GPS, MPH and RPM's for the 3 blade props:


Hustler 15X19 37.1 5300

Hustler 15X17 36.5 5400

SST 15X16 35.6 5600

Viper 14 3/4X17 37.2 5570

Rebel 15 3/4X15 35.5 5500

Piranha 15X17 30.5 5500

BRP 15X17 36 5500

BRP 15 1/2X15 33.5 5700

Viper for top end.
Rebel for control and economy.
But in the end - I went back to aluminum because I tear them up so often.
OH! And the 4 blade gave me enough stern lift that she ventilated and I didn't want to lower the motor for further experimentation.
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Old 05-05-2019, 03:52 PM
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No real input for you, but on my 4 stroke I changed props for better RPM range and also lost fuel economy. What I concluded is sometimes the right prop is not the best eco prop.

In my case I stuck with a SDS prop just took" 2" off the pitch
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Old 05-05-2019, 04:34 PM
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You have a lot of boat for a 150. Thats why the pitch is so low. The Rebel acts like 2 pitches higher than a Viper. Viper isnt a good choice on your application.

I bet the Enertia 14 pitch will work.
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Old 05-05-2019, 04:34 PM
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Originally Posted by jeffnick View Post
I played with props on my Seaswirl 1850 w/ 115 E-Tec.






Here's size, speed in GPS, MPH and RPM's for the 3 blade props:


Hustler 15X19 37.1 5300

Hustler 15X17 36.5 5400

SST 15X16 35.6 5600

Viper 14 3/4X17 37.2 5570

Rebel 15 3/4X15 35.5 5500

Piranha 15X17 30.5 5500

BRP 15X17 36 5500

BRP 15 1/2X15 33.5 5700

Viper for top end.
Rebel for control and economy.
But in the end - I went back to aluminum because I tear them up so often.
OH! And the 4 blade gave me enough stern lift that she ventilated and I didn't want to lower the motor for further experimentation.
Oh man this is not gonna be good if the Viper is best too end. I managed 33 mph at 5500 WOT. 😩
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