approach angle

[BooBoo]

Larger tooth drivers might get ya a shallower approach angle and lessen drag on the track, but I'm not sure if they'd clear up front. You could run larger wheels in the rear too to lessen rolling resistance, might give ya more top end. Just some thoughts. Perhaps others have tried these already ?

Some very good idea's there Hmmmm...Cheaper to

 

[ShootToThrill]

Does anyone have the OD sizes of the 9T vs 10T drivers?

 

[SledFreak]

Does anyone have the OD sizes of the 9T vs 10T drivers?

I would find a set of ski-doo drivers.

 

[ShootToThrill]

Does anyone have the OD sizes of the 9T vs 10T drivers?

I would find a set of ski-doo drivers.

Yeah but we wanna check to see if there will be enough clearance up front with studs.

 

[SledFreak]

Does anyone have the OD sizes of the 9T vs 10T drivers?

I would find a set of ski-doo drivers.

Yeah but we wanna check to see if there will be enough clearance up front with studs.

That's one of the reason's why the 03 F7 had such great top end.... 10t drivers..

 

[ShootToThrill]

And that would help with all the wear on the wearpads on the top of the w-arm, that can't help. I was thinking about mounting the small wheels up there like on the old SRX.

 

[NyTrOMaNIaC]

Does anyone have the OD sizes of the 9T vs 10T drivers?

I would find a set of ski-doo drivers.

Yeah but we wanna check to see if there will be enough clearance up front with studs.

That's one of the reason's why the 03 F7 had such great top end.... 10t drivers..

That and many others. Ever see an Arctic Cat running on a rear stand ? Just at idle, those sleds are turning a track at about 5-10 mph, damn cheaters

Cat has to have the most efficient drive train I've ever seen. They can run the track loose enough to almost fall off ! If Yamaha could ease up on rolling resistance in these sleds, whether it be drive train related or in the rear suspension (eg track angle) I'm sure they'd be one of, if not, the fastest all around sleds on snow.

 

[ShootToThrill]

I'd like to see the rolling resistance difference on one without reverse gear. And it would be alot quicker to pull the chaincase to swap gears around LOL!

 

[enticeraised]

And that would help with all the wear on the wearpads on the top of the w-arm, that can't help. I was thinking about mounting the small wheels up there like on the old SRX.

I have been wearing the top white pads also. And uneven wear also...

 

[Blue Hornet]

Does anybody know why the top white pads wear out so fast. Is it track tension being too loose?

 

[ShootToThrill]

Does anybody know why the top white pads wear out so fast. Is it track tension being too loose?

Mine lasted about 6000 miles. They are cheap to change 20-25 bucks a pair. I think they rub when the w-arm compresses.

 

[Daranello]

i think the departure angle also helps on top end

 

[AKrider]

Seems like regardless of the conditions, the more gradual the approach angle, the better the sled does.

 

[mach9]

Does anybody know why the top white pads wear out so fast. Is it track tension being too loose?

The XTX does not have plastic wear pads.
Yamaha went with short steel ones welded to the top shaft.
This may allow the track to wrap around the drivers better.
Curious what and if a larger diam. driver would do to the performace.
Not a gear change, but otherwise a similar result.

 

[**sj**]

I will throw my 2 cents into the pot....the approach angle only has an affect as the load increases...
in other words...on glare ice...the lack of load has no real affect...as the depth and resistance of snow increases and therefore the load increases the more verticle angle creates a "face" which has to "bulldoze" vs ride on the snow...