New 2017 Yamaha Sleds...

[devinzz1]

I asked about the crossplane 3 years ago...and somebody here....told me no, because it had to do more with how the torque is used by the rear wheel, and that it would not apply to a snowmobile the same way. (or something like that) Do any of you remember that conversation??
I don't know, or understand the whole principal of the crossplane engine, or how it works..I'm no expert, and not a very mechanical guy..but I know it was spelled out by some of the experts here, and they pretty much put that idea to bed....IMO it makes sense for them to use the crossplane...it fits what Yamaha has been doing with other engines in their line-up....it's a logical conclusion Yamaha people could draw.

I remember asking this too and was told numerous reasons why it wont happen. Pretty sure it was from some major members actually.

 

[Bpatch50]

Someone on Dootalk basically said what it is. There is a fraction of Doo riders screaming for a factory turbo 1200. Cat/Yam is giving us one, new 3 hole motor, new chassis, new clutches with a turbo. There ya go...only one exists at the moment, not on production line yet.

Please tell me it's based in the Nytro motor and not the new 998 YXZ motor.

 

[journeyman]

The new motor in the new sled is derived off the new side by side.

 

[TechMaples]

I asked about the crossplane 3 years ago...and somebody here....told me no, because it had to do more with how the torque is used by the rear wheel, and that it would not apply to a snowmobile the same way. (or something like that) Do any of you remember that conversation??
I don't know, or understand the whole principal of the crossplane engine, or how it works..I'm no expert, and not a very mechanical guy..but I know it was spelled out by some of the experts here, and they pretty much put that idea to bed....IMO it makes sense for them to use the crossplane...it fits what Yamaha has been doing with other engines in their line-up....it's a logical conclusion Yamaha people could draw.

It does makes more linear/smoothe torque. It's a more tractable power. It has a sizeable benefit for sportbikes, where there is direct drive transmission and good traction. But when applied to a snowsled drivetrain, a lot of those benefits will be minimized or possibly not noticeable. A CVT clutch system has a tendency to smooth power pulses. That along with poor or vastly changing traction conditions will make the crossplane benefits hardly noticeable IMO.

 

[hognit09]

Doesn't it appear to have a wider body panel as it comes off the side of the nose, like to make a 4cylinder fit?

 

[TechMaples]

That being said, they do sound badass. I just hope for something lighter weight and in the 170hp+ class n/a.

 

[journeyman]

View attachment 116409 The new motor in the new sled is derived off the new side by side.

Obviously the big question is; in n/a form is this the exact motor internally or has it been modified for the turbo application? In base form its rated at 112 hp, while a Viper/Nytro engine comes in at 135 stock....?? We will soon know.....

 

[number1kyster]

Obviously the big question is; in n/a form is this the exact motor internally or has it been modified for the turbo application? In base form its rated at 112 hp, while a Viper/Nytro engine comes in at 135 stock....?? We will soon know.....

I believe the YXZ motor was designed with Boost in mind. MPI released a turbo kit for the YYZ the same day that the sxs was released. They offer a 155, 190, 240, and 300 HP kits for it.

I personally think you are going to see a cat chassis with a turbo YXZ motor in it. This same motor will likely end up being used in the YXZ and the Wildcat sxs's. Cat and Yamaha both need to come out with turbo sxs to compete with Polaris and Can-Am. Yamaha would be crazy to not capitalize on an opportunity to build a motor that can be used in multiple segments.

The non-turbo version could replace the motor in the zr5000.

 

[ntm_08]

Obviously the big question is; in n/a form is this the exact motor internally or has it been modified for the turbo application? In base form its rated at 112 hp, while a Viper/Nytro engine comes in at 135 stock....?? We will soon know.....

Well the engine is the same internally except the piston and bore size ( same week rods ). And other cams if i remember correct ( more rpm range ). And the Viper engine is rated at 130hp not 135. 18 hp less is not far off the 50cc smaller engine that was originally built for 8500rpm range.

 

[ntm_08]

I believe the YXZ motor was designed with Boost in mind. MPI released a turbo kit for the YYZ the same day that the sxs was released. They offer a 155, 190, 240, and 300 HP kits for it.

I personally think you are going to see a cat chassis with a turbo YXZ motor in it. This same motor will likely end up being used in the YXZ and the Wildcat sxs's. Cat and Yamaha both need to come out with turbo sxs to compete with Polaris and Can-Am. Yamaha would be crazy to not capitalize on an opportunity to build a motor that can be used in multiple segments.

The non-turbo version could replace the motor in the zr5000.

Absolutely wrong. This is the same engine as in the Viper. And has the same week rods. MPI only offer a kit with 155hp to the YXZ. All kits above have to change the week rods.

 

[stevewithOCD]

I asked about the crossplane 3 years ago...and somebody here....told me no, because it had to do more with how the torque is used by the rear wheel, and that it would not apply to a snowmobile the same way. (or something like that) Do any of you remember that conversation??
I don't know, or understand the whole principal of the crossplane engine, or how it works..I'm no expert, and not a very mechanical guy..but I know it was spelled out by some of the experts here, and they pretty much put that idea to bed....IMO it makes sense for them to use the crossplane...it fits what Yamaha has been doing with other engines in their line-up....it's a logical conclusion Yamaha people could draw.

I think most people were stating that the cross plane made power over 11,000 rpm's which would require even more gear reduction since clutches loose efficiency over 9000 rpm's. NOW that's under conventional clutching theory & under the assumption that they didn't change where the cross plane makes power. If Yamaha has new clutching technology and/or changed where the cross plane makes power, then it's possible cross plane motor can be used....

 

[MrSled]

Whats this?

 

[MrSled]

I saw this out on the Facebook too... maybe... maybe not?

 

[Bpatch50]

Whats this?

Wise guy huh? Lol

 

[MrSled]

Wise guy huh? Lol

LOL.. thanks that made me laugh.. love the stooges.