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2018 Pro Guide V 175 Combo Prop Testing

Thread in 'Motors & Props' started by Mike Jacobsen, Jul 15, 2018.

  1. Mike Jacobsen

    Mike Jacobsen Member

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    I recently purchased this boat. It has a 115 mercury 4 stroke. I have had it out 4 times now. With the stock prop and a light load I could only achieve 37mph @ 5200 rpms at wot. Stock prop is a 13.25 x 17 black max 3 blade. I could not trim the motor much at all before the prop started to ventilate and slip. I did not get much bow lift at all. I tested with a 13.25 x 13 rubex 4 blade. I hit the rev limiter easily with a light load. Fully loaded I was hitting 32mph @ 6000 rpms at wot. I could trim the motor higher and achieved more bow lift. I just purchased a 13.5 x 15 hustler 4 blade. I hope this will give me more acceptable numbers. I called the shop and asked them if the stock prop was correct and they said it was. Well it’s not acceptable to me. They need to outfit this rig with a different prop when the boat is delivered.

    I hope this can help someone out with this rig.
     
  2. Mike Jacobsen

    Mike Jacobsen Member

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    88587EBA-1B72-4594-B216-E4A08FB18CD1.jpeg DFEE9571-6C78-4C63-97FD-40C594AAF2A1.jpeg DB3BCD25-821A-41D5-A7A4-6858F1EA0CFA.jpeg
     

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  3. Mike Jacobsen

    Mike Jacobsen Member

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    I got to try out the 13.5 x 15 hustler 4 blade this weekend. It’s going to be the perfect prop for a heavy load. With a light load I was running 38 mph @ 6000 rpms. I think I want to get this prop in a 19 pitch for speed with a light load. I’ll report back in a couple of weeks.


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  4. Jimmy V

    Jimmy V New Member

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    I have the same boat but not the prop knowledge. Anxious to see what you come up with
     
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  5. tony zamp

    tony zamp Member

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    I have the same boat never had to drop down to a pitch as low as 15. With up to 4 people I can get 6000 rpms. Close to 38mph gps. With just 2 in the boat i can run A 19p @ 6000 rpm @ 40 mph
     
  6. Mike Jacobsen

    Mike Jacobsen Member

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    What year is your motor? I believe they might have changed the lower unit gear ratio this year or last. What height is your motor mounted? Some have suggested I raise the motor, but right now the anti-ventilation plate is just above the lowest point of the hull.


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  7. tony zamp

    tony zamp Member

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    Its a 2013 with the standard gear box. I can run a 17p prop at full tilt 6200 rpm 40 mph only time i get blow out is on a heavy turn. I can run full tilt with no porpoising.
     
  8. tony zamp

    tony zamp Member

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    207 gear. If I tried a 15 pitch I think it would over rev severly
     
  9. Mike Jacobsen

    Mike Jacobsen Member

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    That’s really strange as mine came with a 17 pitch and I could only hit 5200 rpms. I think it has more to do with the prop design. Getting my 4 blade 13 x 19 Hustler today. I’ll get to test that out this weekend.



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  10. Mike Jacobsen

    Mike Jacobsen Member

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    I’m surprised you can achieve 6200 rpms. My rev limiter kicks in at 6100.


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  11. Mike Jacobsen

    Mike Jacobsen Member

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    Tony, what holes are your motor mounted in? I saw one today with a 150 and it was mounted in the 3rd hole down. I might need to raise my motor. Tried the 19 pitch today and I could just barely hit 5000 rpms with a light load.


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  12. Mike Jacobsen

    Mike Jacobsen Member

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    So I’ve tried 4 different props now. I can’t get my boat to run any faster than 38mph. 13p 32mph @ 6000 rpms , 15p 38mph @ 6000 rpms, 17p 38mph @5300rpms, 19p 38mph @ 5000 rpms. What gives?


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  13. tony zamp

    tony zamp Member

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    My full throttle rpm range is 6400 rpm right now im running a 19p 3 blade prop getting jus about 6000 rpms 39 mph with 3 adults 1child gear and a full tank of gas
     
  14. Raymond

    Raymond Member

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    Hey guys so i just purchased a 2019 v175 combo has the 13.25 17 pitch on a 115 hp im getting like 32mph with just two people in the boat should i just go up to a 19p or four blade not sure what to do want more speed tho thanks for the help
     
  15. Raymond

    Raymond Member

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    Also the motor has a sticker saying 14x29 what does that mean
     
  16. Mike Jacobsen

    Mike Jacobsen Member

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    You don’t want to go to a 19. I have no idea how Tony’s motor is able to swing that prop. Mine can’t at the rpms he claims to rev. You need to go the other way. Try a 15 pitch 4 blade.
    What is your wide open throttle rpms?


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  17. tony zamp

    tony zamp Member

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    What are your rpms at wot. Are you trimming up after you get on plane
     
  18. Raymond

    Raymond Member

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    Im not sure what wot is im in the process of breaking it in and it will get to max rpms i guess you could say but uts just doesnt sound right im not sure how to explain. Kinda like if you have weeds on your prop an over revs but you dont gain speed but not as dramatic
     
  19. Raymond

    Raymond Member

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    Yes i trim up with higher rpms but csnt get the boat over about 32mph no matter the rpms
     
  20. tony zamp

    tony zamp Member

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    Wot wide open throttle
     

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