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  #31  
Old 11-20-2020, 02:21 PM
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Vezo, Part II Vezo, Part II is offline
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Oh My God! They let you run Circle K fuel through that infant? Haha

Best of Luck, Jim. Congratulations!!!

Vezo
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  #32  
Old 11-20-2020, 03:08 PM
Bigshrimpin Bigshrimpin is offline
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Congrats! I see a rev4 on the Merc. I can't wait to hear how she runs.
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  #33  
Old 11-20-2020, 03:28 PM
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Congrats. Boat and engine look great
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  #34  
Old 11-20-2020, 03:32 PM
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Quote:
Originally Posted by Bigshrimpin View Post
Congrats! I see a rev4 on the Merc. I can't wait to hear how she runs.
Jim tells me with a full tank, two men 5880 rpm = 51.5 mph, with the 18 pitch 4 blade SST prop. Will be curious to see what his 30 mph rpm numbers are!
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  #35  
Old 11-21-2020, 09:34 AM
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Quote:
Originally Posted by DonV View Post
Jim tells me with a full tank, two men 5880 rpm = 51.5 mph, with the 18 pitch 4 blade SST prop. Will be curious to see what his 30 mph rpm numbers are!
Yep. Thatís correct. Those numbers were given to me by the Merc dealer guys that installed my engine. They tried 3 props and that one was the best. The other ones were a 4 Blade 21Ē that was too much prop, only 5275 rpm max at WOT. They also tried a 3 blade 18Ē but same top end mph but not as strong of a hole shot. So the 4 Blade 18Ē was the best of the 3 props.

Iím going out to the lake today to run the boat for myself. Iíll report back my findings
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  #36  
Old 11-21-2020, 11:51 AM
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Looking good Jimbo! I'd like to reserve my seat for Bahama 2021.
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  #37  
Old 11-21-2020, 07:18 PM
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Had a great first day with the new motor today at the lake. Perfect weather day, sunny and around 70 degrees. The motor is all I was hoping for. Quiet, smooth, powerful, and fuel efficient. It starts just like a car. Turn the key and itís on, even when cold. Iím definitely not used to that! The prop Iíve got is a Mercury Marine Rev4. 4 blade, 18Ē pitch. First run numbers are: This was with 2 people and 80 gallons of fuel

3500 RPMs/28 mph/7.5 GPH/3.73 mpg
3620/29/8.3/3.49
3700/30/8.6/3.45
3800/31/9.0/3.44
4000/33/10.1/3.26
4600/40/13.3/3.00
4740/41/13.7/2.99
5940/52.3/24.7/2.11 (WOT)
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Last edited by 77SceptreOB; 11-21-2020 at 07:20 PM.
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  #38  
Old 11-22-2020, 09:33 AM
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I can only imagine how exciting that must be. Keep us posted.
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  #39  
Old 11-28-2020, 06:52 PM
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Very impressive fuel numbers Jim.
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  #40  
Old 11-29-2020, 03:07 PM
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Very impressive fuel numbers Jim.
Thanks Ken. When I repowered with a new fuel efficient 4-stroke 300 HP motor my goal was 3.2 mpg cruise. My old 2-stroke Yamaha 225 was around 2.6. So I'm VERY happy with the ~ 3.4 mpg I'm seeing now at 30 mph cruise. That's a 30% improvement in fuel mileage vs. 2 stroke. Does that sound about right?
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Last edited by 77SceptreOB; 11-29-2020 at 03:10 PM.
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