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Jan 23rd, 2013
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Triton TRX 19 #13596859 06/16/20 04:10 PM
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I have a TRX 19 with a 21 INCH Tempest Plus on a 200 Mercury 4 stroke and it just doesn't have much top end, is there anyone on here that's using a different prop with better result's. I'm only getting 64 for my top speed. The Stratos with the 200 E-TECH I had previously would run 70 plus. Thanks

Re: Triton TRX 19 [Re: R.J.E.] #13596866 06/16/20 04:17 PM
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Are you hitting the rev limiter? I would think you could run a 23 or 24, maybe a 25 but I am not at all familiar with the 4 strokes...


1999 Triton TX21/225 Mercury Optimax
Re: Triton TRX 19 [Re: R.J.E.] #13596900 06/16/20 04:51 PM
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I bet you have one heck of a hole shot with a 21" pitch, though! When you report a boat performance issue, it's just babble until you also tell us the LOAD and the RPM, for starters. Engine height could also be an issue, but in your case, the 21" jumps out right away.

Do you know your engines max. operating RPM specification? That's the point you want to be at when running full throttle, no more, no less.

Last edited by Flippin-Out; 06/16/20 04:52 PM.
Re: Triton TRX 19 [Re: R.J.E.] #13596927 06/16/20 05:18 PM
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Yes it comes out of the hole great but I'll need to check the RPM'S, that's with a full tank of gas and two people. Thought I should get around 68 with it, though, thanks for your thought's.

Re: Triton TRX 19 [Re: Flippin-Out] #13641626 07/23/20 06:29 PM
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Originally Posted by Flippin-Out
I bet you have one heck of a hole shot with a 21" pitch, though! When you report a boat performance issue, it's just babble until you also tell us the LOAD and the RPM, for starters. Engine height could also be an issue, but in your case, the 21" jumps out right away.

Do you know your engines max. operating RPM specification? That's the point you want to be at when running full throttle, no more, no less.

Ran this morning with a half a tank of gas and was by myself and it was calm. Running a 12 x 21 Tempest Plus and it only run 62 W.O.T. AT 5700 RPM'S. Should have kept my Stratos. I'm trying to find my manual about what this Mercury RPM max is.

Re: Triton TRX 19 [Re: bronco71] #13641634 07/23/20 06:33 PM
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Originally Posted by bronco71
Are you hitting the rev limiter? I would think you could run a 23 or 24, maybe a 25 but I am not at all familiar with the 4 strokes...

If you are hitting the rev limiter and f it is set at 5700 rpm it will not go over 5700 rpm! I still believe that you are propped wrong....


1999 Triton TX21/225 Mercury Optimax
Re: Triton TRX 19 [Re: R.J.E.] #13641734 07/23/20 07:32 PM
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Originally Posted by R.J.E.
Originally Posted by Flippin-Out
I bet you have one heck of a hole shot with a 21" pitch, though! When you report a boat performance issue, it's just babble until you also tell us the LOAD and the RPM, for starters. Engine height could also be an issue, but in your case, the 21" jumps out right away.

Do you know your engines max. operating RPM specification? That's the point you want to be at when running full throttle, no more, no less.

Ran this morning with a half a tank of gas and was by myself and it was calm. Running a 12 x 21 Tempest Plus and it only run 62 W.O.T. AT 5700 RPM'S. Should have kept my Stratos. I'm trying to find my manual about what this Mercury RPM max is.


12" Diameter? Should be 14 5/8"

Re: Triton TRX 19 [Re: R.J.E.] #13641834 07/23/20 08:44 PM
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5800 is WOT on your motor.


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Re: Triton TRX 19 [Re: tmd11111] #13641956 07/23/20 10:03 PM
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Originally Posted by tmd11111
Originally Posted by R.J.E.
Originally Posted by Flippin-Out
I bet you have one heck of a hole shot with a 21" pitch, though! When you report a boat performance issue, it's just babble until you also tell us the LOAD and the RPM, for starters. Engine height could also be an issue, but in your case, the 21" jumps out right away.

Do you know your engines max. operating RPM specification? That's the point you want to be at when running full throttle, no more, no less.

Ran this morning with a half a tank of gas and was by myself and it was calm. Running a 12 x 21 Tempest Plus and it only run 62 W.O.T. AT 5700 RPM'S. Should have kept my Stratos. I'm trying to find my manual about what this Mercury RPM max is.


12" Diameter? Should be 14 5/8"
That's just what it says on the motor down by the prop.

Re: Triton TRX 19 [Re: R.J.E.] #13641965 07/23/20 10:11 PM
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Originally Posted by R.J.E.
Originally Posted by tmd11111
Originally Posted by R.J.E.
Originally Posted by Flippin-Out
I bet you have one heck of a hole shot with a 21" pitch, though! When you report a boat performance issue, it's just babble until you also tell us the LOAD and the RPM, for starters. Engine height could also be an issue, but in your case, the 21" jumps out right away.

Do you know your engines max. operating RPM specification? That's the point you want to be at when running full throttle, no more, no less.

Ran this morning with a half a tank of gas and was by myself and it was calm. Running a 12 x 21 Tempest Plus and it only run 62 W.O.T. AT 5700 RPM'S. Should have kept my Stratos. I'm trying to find my manual about what this Mercury RPM max is.


12" Diameter? Should be 14 5/8"
That's just what it says on the motor down by the prop.

Look at the barrel on the prop it will be stamped on it not on motor.


2200 Bay Champ/200 Mercury Optimax
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Re: Triton TRX 19 [Re: R.J.E.] #13641976 07/23/20 10:21 PM
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Originally Posted by R.J.E.
Originally Posted by tmd11111
Originally Posted by R.J.E.
Originally Posted by Flippin-Out
I bet you have one heck of a hole shot with a 21" pitch, though! When you report a boat performance issue, it's just babble until you also tell us the LOAD and the RPM, for starters. Engine height could also be an issue, but in your case, the 21" jumps out right away.

Do you know your engines max. operating RPM specification? That's the point you want to be at when running full throttle, no more, no less.

Ran this morning with a half a tank of gas and was by myself and it was calm. Running a 12 x 21 Tempest Plus and it only run 62 W.O.T. AT 5700 RPM'S. Should have kept my Stratos. I'm trying to find my manual about what this Mercury RPM max is.


12" Diameter? Should be 14 5/8"
That's just what it says on the motor down by the prop.


The 12x21 sticker is your gear ratio (1.75:1). Look at the barrel on your prop for the pitch.

Re: Triton TRX 19 [Re: R.J.E.] #13643975 07/25/20 04:14 PM
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It's 21 on the prop also. Talked to a guy at TBW yesterday and he said I needed to lower my engine one inch and then go from there.

Re: Triton TRX 19 [Re: R.J.E.] #13643997 07/25/20 04:47 PM
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A good starting point is normally prop shaft at 3 1/2'' below pad.

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Re: Triton TRX 19 [Re: R.J.E.] #13644075 07/25/20 07:09 PM
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You need a 23-24" Fury or Tempest, 21" is too small. Rigged right it should hit upper 60's in this heat and nudge 70 in cooler weather running solo.

Re: Triton TRX 19 [Re: tmd11111] #13645138 07/26/20 05:46 PM
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Originally Posted by tmd11111
You need a 23-24" Fury or Tempest, 21" is too small. Rigged right it should hit upper 60's in this heat and nudge 70 in cooler weather running solo.

Thanks for the info

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