whisper at the boat show !! .......

[yam240sx]

2025 all new motor will be debuted New 2.0L 215 hp .....Its already been developed and probably undergoing testing this year , but they want it released in 2025 models .

 

[CaptRedbeard]

Curious how many of you guys believe in the "don't buy the first iteration" mantra. On the other hand, Yamaha has a pretty dang good reputation for engines over the years.

 

[HangOutdoors]

From what I understand, they are to be more fuel efficient than the 1.8's with reduced noise. At least that was what I heard last year. It has been suggested that it will be dropped in the 25' footers with a model update in 2025 models releasing in summer of 2024

 

[Judge]

So does that mean there will eventually be a Supercharged version. If they are generating 20% more HP for the N/A version a Supercharged version would be pushing 300HP.

 

[yam240sx]

So does that mean there will eventually be a Supercharged version. If they are generating 20% more HP for the N/A version a Supercharged version would be pushing 300HP.

boats are getting bigger and heavier every year with all tech and bells and whistles .. Yamaha knows this .. and its time to upgrade .

 

[Bottom Bracket]

Supercharged inline 6 would be awesome. 325hp all day long.

 

[Judge]

Supercharged inline 6 would be awesome. 325hp all day long.

That would be a pretty big and heavier engine. If Yamaha went that way for the jet boats instead of a bigger bore and longer stroke on the 4 cylinder, I would have to think they would be launching a 29' - 30' model where they could fit two of them. Then they could compete with the 29' SDX Sea Ray sport runabout.

 

[HangOutdoors]

Not sure the way of the much bigger engines, V-6, is the route they would take. With today's push toward Electic / alternatives and with some of the lawys being enacted in states a supercharged inline could be a pretty big ask.

 

[Bottom Bracket]

V-6's have inherent balance issues, add 2 cylinders in line, runs smooth, stroked and blown 400hp.

2 more cylinders inline, wag, another 125 lbs.

 

[yam240sx]

V-6's have inherent balance issues, add 2 cylinders in line, runs smooth, stroked and blown 400hp.

2 more cylinders inline, wag, another 125 lbs.

2 in liine 6s would prob net 3.0L Motors .. and probably send these boats (25fters) with twins to 65 mph ! LOL

 

[Judge]

2 in liine 6s would prob net 3.0L Motors .. and probably send these boats (25fters) with twins to 65 mph ! LOL

That's why I said perhaps Yamaha is looking to introduce a 29 footer. The Sea Ray SDX is a similar class so maybe Yamaha wants to have a matching 29' offering. Two supercharged 2.0L 4-cyclinders would probably get it about 50MPH like a 275SD.

 

[satovod]

https://www.mby.com/gear/yamaha-harmo-first-look-electric-rim-drive-32ft-boats-118356

 

[yam240sx]

https://www.mby.com/gear/yamaha-harmo-first-look-electric-rim-drive-32ft-boats-118356

lithium ion on the water sounds like a disaster waiting to happen ... those batteries and moisture dont mix like 2 #$%^&

 

[HawaiiBreeze]

My 2 cents :

More Power = Good
More EFFICIENT = MORE SENSORS = PHOOEY.

 

[anmut]

I'm in on a new motor with more power. As long as it 1) still runs on 87 and 2) it's used in their other vehicles too. I wouldn't worry about being a first time adapter either, Yamaha seems to know engines very well.

Also, with more HP, I wonder if Yamaha could tune the impellers to push more weight through the water... more ballast, more surf wave, less noisy, and still no prop - shut up and take my money.

 

[adrianp89]

I'm in on a new motor with more power. As long as it 1) still runs on 87 and 2) it's used in their other vehicles too. I wouldn't worry about being a first time adapter either, Yamaha seems to know engines very well.

Also, with more HP, I wonder if Yamaha could tune the impellers to push more weight through the water... more ballast, more surf wave, less noisy, and still no prop - shut up and take my money.

Hope you got a lot of it. Including yearly price increase and new motor - a 222 will be pushing 90k. A 222XD will be over 100k.

 

[Bruce]

I would prefer to see a step back to an enlarged MR-1 design. The MR-1 HO was 152 HP per liter while the 1.8 is only 100 HP per liter.

A 1,316cc MR-1 could produce 200 HP and a 1,644cc MR-1 could produce 250 HP. An inline 6 MR-1 would be 1,578cc which seems like an excellent size.

 

[satovod]

1052cc mr1- 11000rpm
1812cc HO - 7500rpm

if you increase bore/stroke you will not be able to keep same rpm

 

[Bruce]

1052cc mr1- 11000rpm
1812cc HO - 7500rpm

if you increase bore/stroke you will not be able to keep same rpm

Add two more pistons and you will be at 1,578cc and possibly 240 HP.

I am thinking MR-1 max is 10,200 and R-1 Max is 14,000 in the motorcycle version.

 

[satovod]

10200 continuously at maximum power (with maximum torque) 14000 for a short time with coasting and a drop in the required torque during acceleration.