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#2898894 - 08/07/12 10:12 AM Boat prop question
TeamMainStreet
10 Point


Registered: 08/30/07
Posts: 2629
Loc: Union County,Tn

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I have a friend that has a Bullet 20XD with comp hull that has a 225 Merc on it. It had a 25 pitch prop on it and with 2 people and a fishing load would run around 75 ish with decent hole shot. He has went to a 26 4 blade trophy prop and has a weak holeshot and loss of top end (68 mph). He tryed the 26 with the jackplate in the same position as the 25 and 1/4" below pad with poor results. My question is, which way should he be going with the jplate?
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The work is mighty hard out in the gravel yard. I'll never be a free man so they say

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#2898911 - 08/07/12 10:31 AM Re: Boat prop question [Re: TeamMainStreet]
SES
8 Point


Registered: 10/13/11
Posts: 1313
Loc: Corryton, Tn

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For top end speed, the higher the better. I'd move it up to even with the pad. Only one way to tell though. Move it, run it...
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#2898933 - 08/07/12 11:02 AM Re: Boat prop question [Re: SES]
TeamMainStreet
10 Point


Registered: 08/30/07
Posts: 2629
Loc: Union County,Tn

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He has moved it up to 1/4" above the pad but has not got to test and tune yet.
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The work is mighty hard out in the gravel yard. I'll never be a free man so they say

Dont tread on me



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#2898949 - 08/07/12 11:22 AM Re: Boat prop question [Re: TeamMainStreet]
Dbllunger
12 Point


Registered: 12/08/04
Posts: 5100
Loc: Middle Tennessee

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Is he racing or fishing?? Whats the hurry, stop and smell the roses......75 mph on the water would plain out scare me.

I get a solid 28mph out of my 25hp Johnson.....sometimes I almost have to turn my hat backwards \:\)
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Everything in moderation, including moderation.
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#2898979 - 08/07/12 12:03 PM Re: Boat prop question [Re: Dbllunger]
CATCHDAWG
10 Point


Registered: 04/02/04
Posts: 3956
Loc: Bradley co. TN

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 Originally Posted By: Dbllunger
Is he racing or fishing?? Whats the hurry, stop and smell the roses......75 mph on the water would plain out scare me.

I get a solid 28mph out of my 25hp Johnson.....sometimes I almost have to turn my hat backwards \:\)
Got a buddy that has a 98mph bullet, fished with him ONE time! I don't drive that fast on the interstate, scared the crap out me!!!
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#2899007 - 08/07/12 12:32 PM Re: Boat prop question [Re: Dbllunger]
TeamMainStreet
10 Point


Registered: 08/30/07
Posts: 2629
Loc: Union County,Tn

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 Originally Posted By: Dbllunger
Is he racing or fishing?? Whats the hurry, stop and smell the roses......75 mph on the water would plain out scare me.

I get a solid 28mph out of my 25hp Johnson.....sometimes I almost have to turn my hat backwards \:\)



Either, Or depending on who is around.\:\) No point in having a 55 mph drag car. If it is capable of 80+ id want it to be able to do it. Go big or go home. Na fishin with a crash helment on aint much fun but a toy is a toy
_________________________
The work is mighty hard out in the gravel yard. I'll never be a free man so they say

Dont tread on me



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#2899009 - 08/07/12 12:33 PM Re: Boat prop question [Re: TeamMainStreet]
TeamMainStreet
10 Point


Registered: 08/30/07
Posts: 2629
Loc: Union County,Tn

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No joke though should he be moving the jack plate up or what?
_________________________
The work is mighty hard out in the gravel yard. I'll never be a free man so they say

Dont tread on me



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#2899791 - 08/08/12 06:11 AM Re: Boat prop question [Re: TeamMainStreet]
SilverFox
12 Point


Registered: 10/16/10
Posts: 5418
Loc: Kodak TN

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The Bullet 21 CC with the 300 stock motor is running 117 mph... But not with me in it. LOL. Im not a speed boater and have no information other than that. Good luck holding on.
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#2899803 - 08/08/12 06:24 AM Re: Boat prop question [Re: SilverFox]
Mudbone
10 Point


Registered: 10/24/11
Posts: 3764
Loc: Old hickory Tn

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Go back to the three blade. Or a different three blade. A 26 chopper will get him out of the hole better and add top end. I'm no expert but my experiences with four blade props ain't been good. Takes to long to get rpms up. He probly has the Jp in the right spot just not enough power to spin it. Buddy just went with a four blade trophy on a 200 Merc (24p) on a 19'6 hydra sports and had the same results. Went to a three blade chopper in a 25 and it was off to the races!
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#2900538 - 08/08/12 03:59 PM Re: Boat prop question [Re: ]
Dbllunger
12 Point


Registered: 12/08/04
Posts: 5100
Loc: Middle Tennessee

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 Originally Posted By: Swamphunter
 Originally Posted By: Dbllunger
Is he racing or fishing?? Whats the hurry, stop and smell the roses


It's about getting the most out of your investment. My boat will only run 55MPH but I tested enough props and jackplate positions to know I am maxed out.

Would you drive your truck around with a vacuum leak making it burn more fuel with less performance? Of course not. Same principle.



No but I also don't drive my truck around with the pedal to the floor either.......not really the same principal. I was just teasing with the fellar. If he is like Ricky Bobby and just wants to go fast, then have fun and do it. \:\)
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