Future of Yamaha Trailer

pooner

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Just seen a picture on Facebook of a trailer at Haydays. It said the future of Yamaha. Anyone there? What was in it? Couldn't make it there this year. Thanks

Pooner
 
The trailer had a few examples of some stuff they are working on, one station had a demo of electronic throttle bodies, another had a few metal frames that were all the same size and you were suppose to hold it and hit with a hammer. One was just a square tube frame, the next was the same tube frame with a diagonal cross frame welded into it, and the last one had a small shock absorber welded inside the square tube frame. It was all simulating stiffening of the chassis, when you hit them you could hear the difference in sound and feel the difference of vibration in your hand. The idea would be to add these shock absorbers to bulk heads and frame members to lessen vibration and dampen sharper hits. There were also some pictures of really wild concept machines. Then of course they had a turbo mounted to the desk that no one really wanted to talk about. Who knows, some interesting stuff but the picture of the trailer you saw was probably more exciting than anything inside.
 
I think the future of sled frames is in lamborigini's carbon injection mold process. That is amazing, saves time, uses less carbon and is insanely strong compared to weight. Yamaha, get on the horn to lambo.
 
X2 Carbon Fibre is definitly the future. But I really believe they need to get back the low CG of the old sleds and keep the suspension and riding position of the new. If CG is low it doesnt have to be so light. Trick is to have the suspensions quality we have now. If they could get the low CG I am sure the body positioning could be accomplished. Maybe just have a seat that was adjustable in height with a airbag for light weight. Low for the twisties and high for the rough.
 
How do u have 14" of travel taller seats an bars and the ground clearance for that and keep the cg of a sled with 4-6" of travel and carved out seats that had u sitting almost on the tunnel and not needing as deep a tunnel because it was only a .70" lug compared to 1.25-1.75" tracks now.

Yamahas biggest hurdle will be keeping weight distribution.... The motors are heavier so moving them back helps. Skis forward a bit (skinz concept) puts more weight towards center and rear than on factory nytro. There are geometry solutions u can use to help overcome some things like this.

I really don't feel stiffer is a solution. Race cars are built to flex and give a bit. But it's designed in to flex at a determined area. By allowing the chassis to give it helps it transfer wight to other corners without totally removing the weight from other wheels and it gives better "traction" on low bite surfaces. Some chassis flex would aid in more aggressive cornering as well as keeping inside ski planted. And then with some flex from front to rear it will coil and allow it to dig and turn and then act similar to leaf spring and allow a "weight transfer" to the rear for traction out of the corner all while leaving all corners on the ground. The amount of flex and locations would be something that yamaha would have to play with and get set into their computer modeling programs so once flex numbers were hit they could design sleds around them.
 
Also was a yamaha Viper with an MPI turbo kit on it when I poked my head in there today, looked like a very clean fitting install, lucky timing on my part I guess.
 
AnythingButLast said:
Also was a yamaha Viper with an MPI turbo kit on it when I poked my head in there today, looked like a very clean fitting install, lucky timing on my part I guess.

That's MPI's kit for the viper, they should be releasing details this week on it. Was really nice to talk to them about it, of course they couldn't say much about the future use of their kit, but it did sound promising.
 
fxnytrortxkid said:
How do u have 14" of travel taller seats an bars and the ground clearance for that and keep the cg of a sled with 4-6" of travel and carved out seats that had u sitting almost on the tunnel and not needing as deep a tunnel because it was only a .70" lug compared to 1.25-1.75" tracks now.

Yamahas biggest hurdle will be keeping weight distribution.... The motors are heavier so moving them back helps. Skis forward a bit (skinz concept) puts more weight towards center and rear than on factory nytro. There are geometry solutions u can use to help overcome some things like this.

I really don't feel stiffer is a solution. Race cars are built to flex and give a bit. But it's designed in to flex at a determined area. By allowing the chassis to give it helps it transfer wight to other corners without totally removing the weight from other wheels and it gives better "traction" on low bite surfaces. Some chassis flex would aid in more aggressive cornering as well as keeping inside ski planted. And then with some flex from front to rear it will coil and allow it to dig and turn and then act similar to leaf spring and allow a "weight transfer" to the rear for traction out of the corner all while leaving all corners on the ground. The amount of flex and locations would be something that yamaha would have to play with and get set into their computer modeling programs so once flex numbers were hit they could design sleds around them.

I did suggest a adjustable seat and boxer engine as one part of the solution. Putting exhaust in bellypan like Viper is also going to help. Even runningbord mounted heat exchangers and get rid of radiator would help CG. There is alot of things that could be done.

As for Carbon Fiber the beauty of it is you can vary the stiffness of it very easily unlike tubing which is one thickness throughout. I 100% agree with you that you dont want a overstiff chassis. My Cannondales are a perfect example. Overly stiff aluminum frame and they are a nightmare to setup for TT racing. Old 250R's with the thin steel frame were easy to setup. But think of the fishing rods "Ugly Stick" about as flexible as you can get yet still strong. That is Carbon Fibre and a great example of the extremes in tuning flexibility possible with it.
 
Yes and carbon can be laid up in many diff ways to change how it flexes also and make it stiffer latterly an not longitudily

Lots can be done. The exhaust under tunnel atleast puts weight back farther. Idk lots of diff ways to accomplish it just hope that they can do it cost effectively... Also a cost to repair issue... Can ride a bent subframe home a broken cf frame u can't.
 


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