Twin 115 Yamahas for a Revenge 25 WT? - Moderated Discussion Areas

  ContinuousWave
  Whaler
  Moderated Discussion Areas
  ContinuousWave: Whaler Performance
  Twin 115 Yamahas for a Revenge 25 WT?

search | FAQ | profile | register | author help

Author Topic:   Twin 115 Yamahas for a Revenge 25 WT?

spider posted 05-08-2006 11:06 PM ET (US)
I have been casually looking around for a nice Revenge 25. I don't need to run fast. I want twins. I want 2-strokes. Am thinking of a possible repower of a Revenge 25 WT with twin Yamaha 115's, which would save some money up front and maybe on gas. Anyone running a 25 footer with twin 115's?
spider
Tom W Clark posted 05-09-2006 09:38 AM ET (US)
I doubt you will save any money or gas by repowering with 115s. Personally I would not choose 115s if I had to repower my Revenge 25, 150s are quite nice. I would not want less than 135 HP V-6s at any rate if going with twins.
If I were forced to repower and wanted an economical choice I would choose a 250 HP single outboard.
But if you really want to save money, buy a Revenge 25 that has running motor(s) and then just run them.
oroseiwhaler posted 05-09-2006 04:17 PM ET (US)
Spider,
Boston Whalers are heavy boats and they need a lot of ponnies.
Underpowered boats tend to use equal or even more gas than a "right" powered boat due to higher rpm for equal speed.
I guess 2 130 hp outboards are the entrypoint for a 25' footer, 2 150 hp will be fine.
Double rigs are fine, but buying them, they will cost almoste the double of one single motor, so think again if you realy need a double rig.
I had 2 double rigs (first 2 150 hp Yamaha carbed, second 2 150 hp Yamaha HPDI) and now i mount my third (2 yamaha 150 hp 4-stroke), but the next (i hope in 15 years or so) will be a 300hp single engine.
regards
Chris
Plotman posted 05-09-2006 05:17 PM ET (US)
Twins absoluetly do not cost "double" what an appropriate sized single will.
Use my 22 as an example. I can buy a pair of E-Tec 115 for $15.8k from Eds (motors only). A 225 E-Tec is ging to set me back $13.5k if I buy the cheapest version ($15k even for the 225 H.O.), and to that most people would add a kicker which is going to eat up the difference. Same basic equation if you look to Mercury. A pair of 115 Optimax are $14.3k, whereas a 225 Optimax is $13.0k.
That said, Eds is advertising a 30" Yamaha HPDI for $11k. That could be an excellent engine for a 25 - you would just need a jack plate to mount that engine on a hull designed for a 25" single.
David
Barry posted 05-10-2006 12:05 PM ET (US)
Check out this topic http://www.continuouswave.com/ubb/Forum4/HTML/002183.html
gf posted 05-10-2006 09:59 PM ET (US)

The carbureted, 2-stroke Yamaha V4 115 has a reputation as a great engine but I don't think twin 115s of any brand would be enough power for a Revenge 25. Heck, plenty of Revenge 22s were originally rigged with twin 120s.
spider posted 05-10-2006 11:49 PM ET (US)
The 1986 Whaler catalog lists max HP for the 25 Revenge WT at 300 HP. Min HP to plane is 115.
A lot of these boats were rigged with 225 HP singles. Anyone running a 25 WT or similar model with something like a 225 care to weigh in on the performance of that setup?
Why do people feel that they must run max HP on these boats?
spider

Hop to:

Contact Us | RETURN to ContinuousWave Top Page

Powered by: Ultimate Bulletin Board, Freeware Version 2000
Purchase our Licensed Version- which adds many more features!
© Infopop Corporation (formerly Madrona Park, Inc.), 1998 - 2000.

Author	Topic: Twin 115 Yamahas for a Revenge 25 WT?
spider	posted 05-08-2006 11:06 PM ET (US) I have been casually looking around for a nice Revenge 25. I don't need to run fast. I want twins. I want 2-strokes. Am thinking of a possible repower of a Revenge 25 WT with twin Yamaha 115's, which would save some money up front and maybe on gas. Anyone running a 25 footer with twin 115's? spider
Tom W Clark	posted 05-09-2006 09:38 AM ET (US) I doubt you will save any money or gas by repowering with 115s. Personally I would not choose 115s if I had to repower my Revenge 25, 150s are quite nice. I would not want less than 135 HP V-6s at any rate if going with twins. If I were forced to repower and wanted an economical choice I would choose a 250 HP single outboard. But if you really want to save money, buy a Revenge 25 that has running motor(s) and then just run them.
oroseiwhaler	posted 05-09-2006 04:17 PM ET (US) Spider, Boston Whalers are heavy boats and they need a lot of ponnies. Underpowered boats tend to use equal or even more gas than a "right" powered boat due to higher rpm for equal speed. I guess 2 130 hp outboards are the entrypoint for a 25' footer, 2 150 hp will be fine. Double rigs are fine, but buying them, they will cost almoste the double of one single motor, so think again if you realy need a double rig. I had 2 double rigs (first 2 150 hp Yamaha carbed, second 2 150 hp Yamaha HPDI) and now i mount my third (2 yamaha 150 hp 4-stroke), but the next (i hope in 15 years or so) will be a 300hp single engine. regards Chris
Plotman	posted 05-09-2006 05:17 PM ET (US) Twins absoluetly do not cost "double" what an appropriate sized single will. Use my 22 as an example. I can buy a pair of E-Tec 115 for $15.8k from Eds (motors only). A 225 E-Tec is ging to set me back $13.5k if I buy the cheapest version ($15k even for the 225 H.O.), and to that most people would add a kicker which is going to eat up the difference. Same basic equation if you look to Mercury. A pair of 115 Optimax are $14.3k, whereas a 225 Optimax is $13.0k. That said, Eds is advertising a 30" Yamaha HPDI for $11k. That could be an excellent engine for a 25 - you would just need a jack plate to mount that engine on a hull designed for a 25" single. David
Barry	posted 05-10-2006 12:05 PM ET (US) Check out this topic http://www.continuouswave.com/ubb/Forum4/HTML/002183.html
gf	posted 05-10-2006 09:59 PM ET (US) The carbureted, 2-stroke Yamaha V4 115 has a reputation as a great engine but I don't think twin 115s of any brand would be enough power for a Revenge 25. Heck, plenty of Revenge 22s were originally rigged with twin 120s.
spider	posted 05-10-2006 11:49 PM ET (US) The 1986 Whaler catalog lists max HP for the 25 Revenge WT at 300 HP. Min HP to plane is 115. A lot of these boats were rigged with 225 HP singles. Anyone running a 25 WT or similar model with something like a 225 care to weigh in on the performance of that setup? Why do people feel that they must run max HP on these boats? spider