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Dec 30th, 2023
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 Re: Performance chip - ECU flash for Yamaha V MAX SHO VF25O
[Re: JC Skeeter]
#12329107
07/08/17 02:50 AM
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Joined: Dec 2003
Posts: 36,463
Allison1
TFF Guru
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TFF Guru
Joined: Dec 2003
Posts: 36,463 |
There is a company that, well, 450 hp with a supercharger but you probably don't want that much oomph.
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Re: Performance chip - ECU flash for Yamaha V MAX SHO VF25O
[Re: Allison1]
#12329125
07/08/17 03:04 AM
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Joined: Jun 2009
Posts: 4,294
mudd
TFF Team Angler
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TFF Team Angler
Joined: Jun 2009
Posts: 4,294 |
There is a company that, well, 450 hp with a supercharger but you probably don't want that much oomph.
They claim it will make 600 plus also and the 459 is severely defined. But then again ur nuts putting it on bass boat!
93 Ranger 482vs
95 Bullet 20cc
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Re: Performance chip - ECU flash for Yamaha V MAX SHO VF25O
[Re: JC Skeeter]
#12329148
07/08/17 03:17 AM
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Joined: Nov 2015
Posts: 786
kevine80
Pro Angler
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Pro Angler
Joined: Nov 2015
Posts: 786 |
its my understanding that sho 225 250 300 are all the same engine -just tuned differently =change ecm
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Re: Performance chip - ECU flash for Yamaha V MAX SHO VF25O
[Re: JC Skeeter]
#12329224
07/08/17 04:25 AM
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Joined: Jun 2012
Posts: 1,390
Andrew Y'Barbo
Extreme Angler
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Extreme Angler
Joined: Jun 2012
Posts: 1,390 |
Get ready. You will spend about 1000$ on tuning then that much on props and tweaking.
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Re: Performance chip - ECU flash for Yamaha V MAX SHO VF25O
[Re: JC Skeeter]
#12329397
07/08/17 11:55 AM
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Joined: Jun 2016
Posts: 917
C130
Pro Angler
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Pro Angler
Joined: Jun 2016
Posts: 917 |
I was in Tennessee fishing about three weeks ago and there was a guy in an Allison that had a Yamaha SHO on it. I don't know what he had done to the Yamaha but that thing sounded awesome. It was definitely not stock. It was early morning with completely calm water and he made several passes and was hauling.
On a couple of passes he was shooting a stream of water up quite a ways in the air on one side. Water was coming out right around the motor. Anyone know what does that?
Last edited by C130; 07/08/17 01:30 PM.
Bass Cat Eyra
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Re: Performance chip - ECU flash for Yamaha V MAX SHO VF25O
[Re: JC Skeeter]
#12329594
07/08/17 03:16 PM
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Joined: May 2011
Posts: 126
woody123
Outdoorsman
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Outdoorsman
Joined: May 2011
Posts: 126 |
Two years ago Simon was doing the flashing for Hydo-tec
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Re: Performance chip - ECU flash for Yamaha V MAX SHO VF25O
[Re: JC Skeeter]
#12332174
07/10/17 03:31 PM
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Joined: Feb 2014
Posts: 1,117
JC Skeeter
OP
Extreme Angler
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OP
Extreme Angler
Joined: Feb 2014
Posts: 1,117 |
From what I have read and learned after talking to some people, especially Hydro Tec and Steves custom props, leaving it at stock (6,200rpm) or going up to no more than (6,400rpm) is best. Then, it is most likely that to get the most out of it you will need a 26 - 27 pitched prop instead of the 25. Both to make sure you stay away from over revving, and to gain a little more on top end.
Anyone have any experience with these settings and what the outcome was on the boat?
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Re: Performance chip - ECU flash for Yamaha V MAX SHO VF25O
[Re: C130]
#12332186
07/10/17 03:36 PM
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Joined: Feb 2002
Posts: 2,973
Txduckhunter
Extreme Angler
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Extreme Angler
Joined: Feb 2002
Posts: 2,973 |
I was in Tennessee fishing about three weeks ago and there was a guy in an Allison that had a Yamaha SHO on it. I don't know what he had done to the Yamaha but that thing sounded awesome. It was definitely not stock. It was early morning with completely calm water and he made several passes and was hauling.
On a couple of passes he was shooting a stream of water up quite a ways in the air on one side. Water was coming out right around the motor. Anyone know what does that? White Allison at the World Finals? That fellow was certainly hauling bass......
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Re: Performance chip - ECU flash for Yamaha V MAX SHO VF25O
[Re: C130]
#12332505
07/10/17 06:42 PM
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Joined: Nov 2002
Posts: 5,051
BMCD
TFF Celebrity
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TFF Celebrity
Joined: Nov 2002
Posts: 5,051 |
... Anyone know what does that? Looks cool.
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Re: Performance chip - ECU flash for Yamaha V MAX SHO VF25O
[Re: Txduckhunter]
#12332514
07/10/17 06:47 PM
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Joined: Oct 2013
Posts: 2,578
UTDmiller
Extreme Angler
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Extreme Angler
Joined: Oct 2013
Posts: 2,578 |
I was in Tennessee fishing about three weeks ago and there was a guy in an Allison that had a Yamaha SHO on it. I don't know what he had done to the Yamaha but that thing sounded awesome. It was definitely not stock. It was early morning with completely calm water and he made several passes and was hauling.
On a couple of passes he was shooting a stream of water up quite a ways in the air on one side. Water was coming out right around the motor. Anyone know what does that? White Allison at the World Finals? That fellow was certainly hauling bass...... My Guess would be a phase III kit from hydro tech
John Miller
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Re: Performance chip - ECU flash for Yamaha V MAX SHO VF25O
[Re: JC Skeeter]
#12332538
07/10/17 06:58 PM
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Joined: Aug 2009
Posts: 11,146
9094
TFF Guru
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TFF Guru
Joined: Aug 2009
Posts: 11,146 |
The difference is that in cars there is not a rule that limits the horsepower. If you fish tournaments and they have a rule stating that you cannot exceed the USCG rating on your boat and you have your ECU modified to make it a 300 HP engine then you are breaking the rules. I do know several people that have had their boards modified and it does make them a 300HP engine.
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Re: Performance chip - ECU flash for Yamaha V MAX SHO VF25O
[Re: JC Skeeter]
#12332550
07/10/17 07:09 PM
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Joined: Aug 2006
Posts: 6,966
Sinkey
Tidy Scoop
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Tidy Scoop
Joined: Aug 2006
Posts: 6,966 |
Not trying to be funny or anything....but what's the point?
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Re: Performance chip - ECU flash for Yamaha V MAX SHO VF25O
[Re: Sinkey]
#12332888
07/10/17 10:33 PM
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Joined: Jun 2012
Posts: 1,390
Andrew Y'Barbo
Extreme Angler
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Extreme Angler
Joined: Jun 2012
Posts: 1,390 |
Not trying to be funny or anything....but what's the point? Because only a hand full of people break 80mph. It's harder than you think. I've seen plenty of capable boat that will never break it.
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Re: Performance chip - ECU flash for Yamaha V MAX SHO VF25O
[Re: JC Skeeter]
#12333360
07/11/17 02:17 AM
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Joined: Aug 2006
Posts: 6,966
Sinkey
Tidy Scoop
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Tidy Scoop
Joined: Aug 2006
Posts: 6,966 |
Again, what's so big about breaking 80?
Never won a tournament going 80. Just saying.
Besides, I'm pretty sure that will null your warranty on the motor.
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Re: Performance chip - ECU flash for Yamaha V MAX SHO VF25O
[Re: Txduckhunter]
#12334230
07/11/17 04:36 PM
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Joined: Jun 2016
Posts: 917
C130
Pro Angler
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Pro Angler
Joined: Jun 2016
Posts: 917 |
I was in Tennessee fishing about three weeks ago and there was a guy in an Allison that had a Yamaha SHO on it. I don't know what he had done to the Yamaha but that thing sounded awesome. It was definitely not stock. It was early morning with completely calm water and he made several passes and was hauling.
On a couple of passes he was shooting a stream of water up quite a ways in the air on one side. Water was coming out right around the motor. Anyone know what does that? White Allison at the World Finals? That fellow was certainly hauling bass...... Solid red, it was a beautiful boat but sounded even better.
Bass Cat Eyra
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