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Max Online: 36273 @ 01/23/13 02:34 PM
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#11757687 - 08/03/16 09:04 PM Prop question
D Egge Online   content
Angler

Registered: 06/28/16
Posts: 365
Loc: Corinth, Texas
I have a Lazer II 21p ss prop on a Mercury Opti 115. I bought a Merc 125 Opti that was on a Blue Wave 20' center console. It has a really low pitch. The seller thinks its a 13p? I am just looking for a better hole shot and don't really want/need a lot of top speed. What would be optimal setup? I have a 2006 Nitro 482, it's 18'9".
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Dave Egge

Nitro 482
PB LM 9.4
_____________________________________
And he said unto them, Follow me, and I will make you fishers of men

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#11757857 - 08/03/16 10:51 PM Re: Prop question [Re: D Egge]
Pat Goff Online   content
TFF Celebrity

Registered: 01/29/05
Posts: 5278
Loc: Marble Falls/Seadrift
Good questions, not enough details.
Your opti is a hard motor to prop, it's power curve is narrow and it's pretty gutless on the low end, sorry to say.

AND...it's got a hard rev limiter at 5,700 rpms, you don't want to hear that thing screaming at you all the time, so the details you'll need to share: Whats your current rpms with the lazer at WFO? THAT number will say what you really need to be running. It won't be that 13, not gonna work at all.
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Pat Goff
Marble Falls/Seadrift TX



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#11757893 - 08/03/16 11:28 PM Re: Prop question [Re: D Egge]
bronco71 Online   content
Extreme Angler

Registered: 02/05/06
Posts: 1409
Loc: Farmers Branch/Sulphur Bluff
I would try that 21p Laser II on the 125 before I would do any thing else, use that as a starting point to get WOT rpm and holeshot info and dial in from there....that prop might be able to be tuned to work.


Edited by bronco71 (08/03/16 11:29 PM)

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#11758029 - 08/04/16 07:12 AM Re: Prop question [Re: D Egge]
Bob Landry Online   content
Extreme Angler

Registered: 08/10/11
Posts: 2675
Loc: Austin, Tx
If the prop is not marked, take it to a shop and let them tell you what it is. If you don't know what you got, you don't kow what you need and you can guess till the cows come home, throw props at it trying to get it right, and end result is that someone will have made a lot of money selling you props and you will still be trying to get your boat to run at it's optimum.
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#11758125 - 08/04/16 08:22 AM Re: Prop question [Re: D Egge]
D Egge Online   content
Angler

Registered: 06/28/16
Posts: 365
Loc: Corinth, Texas
Thanks guys!
_________________________
_______________

Dave Egge

Nitro 482
PB LM 9.4
_____________________________________
And he said unto them, Follow me, and I will make you fishers of men

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#11758428 - 08/04/16 11:14 AM Re: Prop question [Re: Pat Goff]
D Egge Online   content
Angler

Registered: 06/28/16
Posts: 365
Loc: Corinth, Texas
Thanks,
Won't have the 125 on until Monday. I'll get that info after i drive it. Probably have the 21p put on when we do the motor swap...
_________________________
_______________

Dave Egge

Nitro 482
PB LM 9.4
_____________________________________
And he said unto them, Follow me, and I will make you fishers of men

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#11760711 - 08/05/16 04:46 PM Re: Prop question [Re: D Egge]
Team Brown Stripe Offline
Extreme Angler

Registered: 04/25/07
Posts: 2165
Loc: Carrollton, Texas
Did you do a compression test on that 125? 13 pitch sounds really low almost like it might be covering up a weak cylinder.
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Youtube video of my tired old fishin motor on the Dyno thumb
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#11761944 - 08/06/16 03:06 PM Re: Prop question [Re: D Egge]
Pat Goff Online   content
TFF Celebrity

Registered: 01/29/05
Posts: 5278
Loc: Marble Falls/Seadrift
Not really. A 13 heavy cup flats prop would be about right for that blue wave.
_________________________
Pat Goff
Marble Falls/Seadrift TX



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#11767981 - 08/09/16 04:30 PM Re: Prop question [Re: D Egge]
Team Brown Stripe Offline
Extreme Angler

Registered: 04/25/07
Posts: 2165
Loc: Carrollton, Texas
thumb
_________________________
Youtube video of my tired old fishin motor on the Dyno thumb
https://www.youtube.com/watch?v=RiI-UfMEUw0
www.XtremeMarine.us



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