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I had thought about that as well but then I realized the clutch doesn't stick out any farther than your leg anyway and it just adds a bunch of complexity and failure points.
Cvt snow bike
- Thread starter J&L Snowhawk
- Start date
I had thought about that as well but then I realized the clutch doesn't stick out any farther than your leg anyway and it just adds a bunch of complexity and failure points.
You missunderstood, leave motor same direction as stock and flip cylinders 180 degrees.
Running primary off belt driven shaft is another idea that we have been pondering. But another shaft and frame to support it equals more weight.
Lots of good ideas!
O
The FAST Inc. snowmobiles ran backwards with the clutch on the right side of the sled correct?? They did this for years using stock polaris motors and nothing was wrong with them.
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Most 2S engine designs really do not care which direction it runs or how it is mounted, there have been a few exceptions through out history. 2S outboards are mounted vertically, I've seen a few ultra light drag cycles with the 2S snowmobile engines inverted and mounted to a single tubular frame member that ran from the headset / triple clamp to the rear suspension pivot. The 2S engine has nearly unlimited mounting options. I think it is short sighted / misinformed to compare it to a diesel engine of any sort. Apples and oranges, IMO. I have drawn up many a machine with the whole engine turned 180 degrees (like the Fast sleds) but run them the designed direction and reversed the rotation in the final gear reduction. Intake in front for the ram air effect and pipes straight out the back above the tunnel and below the seat. A design I've had drawn for twenty years or so is an in the driver CVT system that is fed with a belt drive straight from the crank stub to the driveshaft / CVT input (common centerlines), hollow driveshaft with the gear reduction / CVT in the center between the drivers. No heavy wide clutches and more centralized mass. Under 5 pounds rotating mass from crankshaft to drivers. That is where I foresee the greatest single evolution in snow sport technology to occur, reducing the rotating weight and the parasitic drag. While increasing the overall efficiency.
I have given builds like this some thought too and have wondered if you could find a motorcycle engine/ tranny that would handle the sled motors hp and gut out the mcycle engine leaving only the clutch and trans.
Seems like you could drive it with a belt or chain like any primary and it allows for the trans to be located where it may fit in better than sled clutches.
Seems like you could drive it with a belt or chain like any primary and it allows for the trans to be located where it may fit in better than sled clutches.
Cool idea
I really like your idea.
I wish you were working in the engineering department of one of the snowmobile mfg's.
I really like your idea.
I wish you were working in the engineering department of one of the snowmobile mfg's.
S
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Test
I rode it Saturday for first little test. All is great. Going west Thursday
I rode it Saturday for first little test. All is great. Going west Thursday
collision course
down at EXPO the last few days, SAT looked sunny, better ride, tossed a coin and headed for Reynolds Pass..........then cloudy and black sky to the West, went North down the Gallatin to Taylors fork / Carrot basin. Unloaded with a pile of sleds and bikes, rode in the sun right up into a blizzard in the basin. Tons of new deep dense/wind/blowing snow, cut around until I could dump in my gas and rode back down into the sun to play. Heard some bikes and something just wasn't right, two strokes somewhere in the mix that didn't sound like bikes or sled.
On the way out sitting alongside the icerock trail, along comes two 2 stokes on some kind of..........not sure some Honda or something.........whoa Les and his pal Chris on the CVT's. Been talking to Les for 3 or four years about hooking up and riding with him on his trips to Missoula.
Nice to meet Les the SnowHawk in person. Thanks for coming over and saying hello Les. And by the way this nice guy is thinking way to far outside the box...........for most.
down at EXPO the last few days, SAT looked sunny, better ride, tossed a coin and headed for Reynolds Pass..........then cloudy and black sky to the West, went North down the Gallatin to Taylors fork / Carrot basin. Unloaded with a pile of sleds and bikes, rode in the sun right up into a blizzard in the basin. Tons of new deep dense/wind/blowing snow, cut around until I could dump in my gas and rode back down into the sun to play. Heard some bikes and something just wasn't right, two strokes somewhere in the mix that didn't sound like bikes or sled.
On the way out sitting alongside the icerock trail, along comes two 2 stokes on some kind of..........not sure some Honda or something.........whoa Les and his pal Chris on the CVT's. Been talking to Les for 3 or four years about hooking up and riding with him on his trips to Missoula.
Nice to meet Les the SnowHawk in person. Thanks for coming over and saying hello Les. And by the way this nice guy is thinking way to far outside the box...........for most.
it was an all out $hit hook! check quality settings for hd
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Any updates for the new season?
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