V-Twin Two Stroke Purpose built Bike

[ravenous]

The problem with all the existing V-twin motorcycle engines is their size and weight. If you build a snowbike with a 1290 it will be heavier than a sled and you will completely lose that dirt bike feel. This 950 is half the weight of a 1290 and would fit in a dirt bike chassis. I guess one advantage with a four stroke is you dont have to find a home for a huge expansion chamber, but I agree that 2 stroke power is probably best. This is an interesting topic.

 

[Hawkster]

First one is a Suter 2 stroke GP superbike engine . The bikes are about 300 pounds , 200 horse , 200 mph . Aaen also has a V-4 two stroke , claimed weight of 95 pounds .

What weights do the V-twin 4 strokes come in at ?

 

[powdermuncher]

I would be perfectly happy with a 850 eteck engine why reinvent the wheel they rip. Just need a proper chassis for a snowbike , have the donor sled already

 

[jethro450]

First one is a Suter 2 stroke GP superbike engine . The bikes are about 300 pounds , 200 horse , 200 mph . Aaen also has a V-4 two stroke , claimed weight of 95 pounds .

What weights do the V-twin 4 strokes come in at ?

Wow, now we're talking! I agree, it really needs to be two stroke for weight purposes alone.

I've thought about this a lot. I don't this doing this would kill the dirt bike/conversion market. I think there's always going to be a market for that because it's an easy stepping stone for guys who already have a bike and just wanna get in the snow. It's fun, relatively easy conversion, and they can go "anywhere you wanna go" pretty easy. Then there's guys like me that have been doing that for 8 years now and I'm ready for the next step. There is no one offering what I consider the next step though. I'd much rather spend the 10k+ on a factory purpose built machine rather than fully dedicate and modify a perfectly good dirt bike into a turbo'd snowbike that still has quirks because it wasn't really intended for that use... get my drift?

PS - yesterday was some of the deepest snow I've been in, it was amazing! But I need more power for that crap ha ha. Handle bar deep all day.

 

[john6719]

First one is a Suter 2 stroke GP superbike engine . The bikes are about 300 pounds , 200 horse , 200 mph . Aaen also has a V-4 two stroke , claimed weight of 95 pounds .

What weights do the V-twin 4 strokes come in at ?

I want this in my ProClimb....

 

[Hawkster]

I would be perfectly happy with a 850 eteck engine why reinvent the wheel they rip. Just need a proper chassis for a snowbike , have the donor sled already

Those engines truly do have modern technology compared to what's being offered . Thing with those guys is when they build something it's build for a specific reason and makes it really hard to just swap out .

No doubt the 850 would be amazing in a single ski with some serious arm pull

The amount of torque a two stroke V would be a major hurdle to turning over a track in a bike and would probably get you back up on the feet pegs taking it to the next level .

Quite amazing from the way I see it , why would you put a track on a dirt bike when a street machine or motard would be a better candidate other than a cheap thrill out of pocket expense compared to the machine you could really have . Just making a statement , no one get offended please .

 

[jim]

Cool thread. I've always wondered why not just throw a snowbike track on the super motos...like the Duke 800 or the Aprilla supermoto v-twin? Both light and lots of power.

 

[up-high]

Pick one of those up in 4 feet of snow in a tree well and you will understand why. I loved my Tapex with a 174 but I didn't want to get it stuck!

 

[Norma Stitz]

Cool thread. I've always wondered why not just throw a snowbike track on the super motos...like the Duke 800 or the Aprilla supermoto v-twin? Both light and lots of power.

That's what I did. Although my supermoto is 478cc and based on a true dirt bike chassis. I'm new to this snow biking but I can say that the few times I've had to pick up the bike I sure wouldn't want it to be a bit heavier, because it's about all I can muster in the snow.

 

[moparmadman40]

There isn't really any successful v-twin 2-stroke engines out there because it just doesn't work well. To have a conventional v-twin crank and cylinder arrangement you are stuck with a single crankcase which just doesn't work because the pressure cycles fight eachother. You need to have separate crankcases. At that point it easier just to end up with a parallel twin like a sled or banshee engine. I have a banshee engine in my bike and it is ok, but many problems with the layout and it's just ancient technology. If they put some thought into it they could make a compact and up to date twin bike engine. Someone just needs to step up!