V 4 in snowmobile

[cannondale27]

I so wish Yamaha would do a 4st V 4 sled!
https://www.facebook.com/RoadandTrack/posts/10158266729731091

 

[MrSled]

I so wish Yamaha would do a 4st V 4 sled!
https://www.facebook.com/RoadandTrack/posts/10158266729731091

Very cool!!

 

[74Nitro]

For sure. One of the benefits is that they naturally balance compared to an in line 4, especially compared to the cross-plane four which Yamaha uses, which also requires counter-balancers that add weight and cost.
In Motogp, engines rev as high as 16-17000 RPM. KTM, Ducati, Honda and Aprillia all use V4 engines. Yamaha and Suzuki still with the in line 4 and just don't have the top speed power like the rest. I've read it is harder to keep and in-line four balanced at those very high RPM's compared to the V4
While an in line triple fits very nicely into a sled, the four is a little wider but still not bad. I think a V4 could fit very nicely into a sled.

 

[Tarzan]

This is going in a snowmobile.

 

[MrSled]

This is going in a snowmobile.View attachment 156115 View attachment 156116 View attachment 156117 View attachment 156118

Do it!! I would love to see that bad boy running in a sled!!

 

[kinger]

Tarzan - What size is that and where is it available? Do you like the balancing effect of a V4 over a inline? Hard to understand when R1 and Apex 4 cyl love to rev to the moon. I do think a V4 sounds amazing though!

 

[cannondale27]

This is going in a snowmobile.View attachment 156115 View attachment 156116 View attachment 156117 View attachment 156118

Wow!
Will it have a gear reduction?

 

[74Nitro]

Pretty.
Is that the Suzuki 1100 heads?

 

[ClutchMaster]

For sure. One of the benefits is that they naturally balance compared to an in line 4, especially compared to the cross-plane four which Yamaha uses, which also requires counter-balancers that add weight and cost.
In Motogp, engines rev as high as 16-17000 RPM. KTM, Ducati, Honda and Aprillia all use V4 engines. Yamaha and Suzuki still with the in line 4 and just don't have the top speed power like the rest. I've read it is harder to keep and in-line four balanced at those very high RPM's compared to the V4
While an in line triple fits very nicely into a sled, the four is a little wider but still not bad. I think a V4 could fit very nicely into a sled.

Yamaha and Suzuki both still use an inline 4 cylinder. The biggest reason for using the V4 is its width, much narrower, great for a sled application IMO. Olav Aaen had a prototype 2 stroker back in the day, wish I could have actually seen it in person.
Technically the inline motors are almost always capable of more horsepower due to the fact for every rod bearing there’s a main bearing, instead of two cylinders sharing a journals on the crank. Yea if you have the money for billet engine cases then horsepower isn’t a limitation.

As for natural balance, they are not naturally balanced. All V-cylinder engines have to be bob weight balanced in order to Achieve a good balance, which arguably creates an unbalance at certain rpm’s. That’s why when you have a V-style engine balanced they ask you what the engine redline is. The only truly natural balanced 4 cylinder is a Boxer, or horizontally opposed motor. Like a Goldwing, BMW, or Porsche/Volkswagen motor.

But yea we definitely need a turbocharged MotoGP V4 in a snowmobile!!!! If someone has one collecting dust in the garage I’m ready to start fabrication tomorrow.

 

[STAIN]

I think that is 2 Suzuki 1100's Siamese together????

 

[74Nitro]

Yamaha and Suzuki both still use an inline 4 cylinder. The biggest reason for using the V4 is its width, much narrower, great for a sled application IMO. Olav Aaen had a prototype 2 stroker back in the day, wish I could have actually seen it in person.
Technically the inline motors are almost always capable of more horsepower due to the fact for every rod bearing there’s a main bearing, instead of two cylinders sharing a journals on the crank. Yea if you have the money for billet engine cases then horsepower isn’t a limitation.

As for natural balance, they are not naturally balanced. All V-cylinder engines have to be bob weight balanced in order to Achieve a good balance, which arguably creates an unbalance at certain rpm’s. That’s why when you have a V-style engine balanced they ask you what the engine redline is. The only truly natural balanced 4 cylinder is a Boxer, or horizontally opposed motor. Like a Goldwing, BMW, or Porsche/Volkswagen motor.

But yea we definitely need a turbocharged MotoGP V4 in a snowmobile!!!! If someone has one collecting dust in the garage I’m ready to start fabrication tomorrow.

Yes, In MotoGP Yamaha and Suzuki are using in line fours, but are getting dusted by the all the V-4's, as far as outright power and straight-line speed goes.

 

[1nc 2000]

Hypersports engine made in Wisconsin.

 

[ClutchMaster]

Yes, In MotoGP Yamaha and Suzuki are using in line fours, but are getting dusted by the all the V-4's, as far as outright power and straight-line speed goes.

Not a one of those MotoGP bikes could hang with this bike as far as outright power and speed.....

The fact that it’s a V-block design has nothing to do with horsepower of the engine.
Like I said inline motors have always inherently by design, been able to hold more power than V-block motors, just sayin.

Hypersports engine made in Wisconsin.

View attachment 156123

Yep, they also make a Hayabusa inline billet block that can handle over 1000hp.

 

[74Nitro]

Not a one of those MotoGP bikes could hang with this bike as far as outright power and speed.....
View attachment 156126
The fact that it’s a V-block design has nothing to do with horsepower of the engine.
Like I said inline motors have always inherently by design, been able to hold more power than V-block motors, just sayin.




Yep, they also make a Hayabusa inline billet block that can handle over 1000hp.

The naturally aspirated one liter motoGP bikes are hitting over 220mph, and the longest straights are 1.2kms, or .74 miles.

 

[74Nitro]

It is the extremely high RPM that has an effect on valve train operation. Explained in attached article.
https://www.cycleworld.com/story/motorcycle-racing/2020-bmw-m-grand-prix-of-styria/