upside down fox float on nytro air pressure help

[snopro442]

I just installed the fox float evol with the extra air canister and these are the ones that are upside down when installed, my question is what air pressure should I be running? any help would be great

 

[Kkurz]

I just installed the fox float evol with the extra air canister and these are the ones that are upside down when installed, my question is what air pressure should I be running? any help would be great View attachment 124394

I run between 40-50lbs. but I weigh 185lbs. If you look in the FAQs there's lots of setup info. Good luck!

 

[snopro442]

I put 50 lbs in the main, how much are you running in the extra canister?

 

[Kkurz]

Sorry to confuse, I don't have the dual chamber.

 

[Big_Phil]

Put as much Air pressure as you like. Its a personal preference. Just keep in mind, changing the air pressure in the shock will change your ride height. When the ride height changes on the nytro, it changes your tow in/out. When you lower the sled it toes in and when you raise the sled it toes out.

 

[Snowman871]

Put as much Air pressure as you like. Its a personal preference. Just keep in mind, changing the air pressure in the shock will change your ride height. When the ride height changes on the nytro, it changes your tow in/out. When you lower the sled it toes in and when you raise the sled it toes out.

Any notes on how much? You've got me curious

 

[Big_Phil]

Any notes on how much? You've got me curious

Are you asking how much it toes in/out with ride height change?

Alot! lol. enough to make your sled handle like complete garbage. I dont know the exact measurements. When I still had the floats on my sled, going from 75psi in the floats to 60 psi was toed in probably about an inch. Ideally you want to be toed out 1/2 inch, so you definitely need to adjust this if you are changing the pressure in your floats.

 

[Snowman871]

Are you asking how much it toes in/out with ride height change?

Alot! lol. enough to make your sled handle like complete garbage. I dont know the exact measurements. When I still had the floats on my sled, going from 75psi in the floats to 60 psi was toed in probably about an inch. Ideally you want to be toed out 1/2 inch, so you definitely need to adjust this if you are changing the pressure in your floats.

Yes, I understand the ride height change with varying pressure, but I'm a little surprised/disappointed it would have so much effect on toe-in/out. I just switched over to Fox Float Evol R's with my new Mountaintech 41" arms and pulled my sway bar. Figured I could find settings I liked for on trail and off trail, though if it played that big of a factor on toe-in/out I might have to find a happy medium.

 

[WinderFab]

Big_Phil so will the toe in/out change as your riding since the front end goes up and down according to throttle input ?
So wouldn't that always make the sled handling unpredictable?
I'm just asking...
Thanks

 

[Big_Phil]

Big_Phil so will the toe in/out change as your riding since the front end goes up and down according to throttle input ?
So wouldn't that always make the sled handling unpredictable?
I'm just asking...
Thanks

I would assume so, yes. And maybe that's why Nytro's handle a little weird when stock? I don't know how it exactly works.

I just know from changing my float pressures, I almost killed my self the first time i lowered the pressure. Lol. A toed in nytro is a little scary. And now I just bought a new set of shocks for my seld that are an inch longer, and when the front ride height was raised it was way toed out.

 

[Big_Phil]

Yes, I understand the ride height change with varying pressure, but I'm a little surprised/disappointed it would have so much effect on toe-in/out. I just switched over to Fox Float Evol R's with my new Mountaintech 41" arms and pulled my sway bar. Figured I could find settings I liked for on trail and off trail, though if it played that big of a factor on toe-in/out I might have to find a happy medium.

You also have the different a arms, so pretty much you'll have to experiment. Change the pressure and see what happens. Wouldn't the mountaintech A arms change the geometry of the front end from a stock one?

 

[Kkurz]

Big Phil is right. If you adjust your shock preload up other down more than just a few pounds, you will have to adjust the toe out. It isn't that big of a deal but it's necessary. If you think that you are a hard core snowcrosser and want to jump a lot you will have the preload way up. But if you want the sled to corner well, drop the front end a bit using the air pressure. As far as the toe in changing as you ride, I'm pretty sure that's what they refer to as bump steer and it's pretty hard to eliminate that. I have a suspicion that the steering rods being shorter that the A-arms could be to blame.
Good luck!

 

[grizztracks]

For my 2008 RTX I run 150 psi in the Evol chamber and 50 psi in the main chamber. Fill the EVOL first.