fox float pressure

[wastedeep]

those of u that have the rear fox float shock on an m sled
what pressure are u starting with
i ride from 6,000' to 11,000' on a good day
and do u have any issues with the elevation differences
i weigh 205 lbs with gear

 

[76FOMOCO]

and please list your weight.
Has any body put N2 in it?

 

[Reese]

Rider weight with gear(pack): about 235-240lbs.
Rear shock air pressure: 110-115 psi.
Altititude will not affect your shock pressure as it's a compressed gas (O2) with in the shock itself.
Temp. on the other hand may affect your psi readings from day to day or as temp. changes, but it would need to be a significant change in temp.

Reese

 

[WyoBoy1000]

210lbs dry,
09 m1000 162

with out any weight on the skid(lift the rear off the ground) 140-150psi and very little front skid shock pressure, limiter straps all the way out. this will be very close to the best setup to not trench. but for better side hilling more front skid pressure helps. sucks on the trail either way.

 

[76FOMOCO]

Rider weight with gear(pack): about 235-240lbs.
Rear shock air pressure: 110-115 psi.
Altititude will not affect your shock pressure as it's a compressed gas (O2) with in the shock itself.
Temp. on the other hand may affect your psi readings from day to day or as temp. changes, but it would need to be a significant change in temp.

Reese

we have a tire shop fill some of a rigs with N2 it stays more constant over temp and alt so no air in the spring just N2 should do the same thing right?

 

[wastedeep]

i weigh 205 lbs with gear

 

[Reese]

we have a tire shop fill some of a rigs with N2 it stays more constant over temp and alt so no air in the spring just N2 should do the same thing right?

I would think N2 would work just fine. I remember when the Ryde 2.0 air shocks came out they used N2, I would guess for the same reasons you have stated above. One of the complaints I remember with those was you had to bring the shocks in just to have the "air" (nitrogen) spring pressure adjusted.

Using N2 in the fox shocks the only problem is when you make adjustments on the hill your going to be introducing O2 into the "air" spring thus decreasing the benifits of an air spring filled with 100% N2.

For ease of use I would stick to using the fresh mountain air to make adjustements. It only takes a second.

Reese

 

[hillbilly]

I set my rear float at 125psi for the first ride,this was at 600' elevation, limiters all the way out, mid shock tightened two turns from a loose spring. Fronts are zero pros and currently set very light,(will bottom out on big hits).This set up is working great in both powder and heavy wet snow. I was surprised that the shock pressure NEVER changed from 600' at home to 10,000' at the playground. Even temperature extremes from 0* to 85* had no affect on the psi. The pressure was checked often because I thought for sure it would change. Just sent the shock in to Tom's to get re-valved, the ride back to the truck was brutal. Ended up dropping pressure to 115.

09 m8 162 standard
205 lb gear and pack
still plan on filling with nitrogen- no moisture to freeze

 

[Skinner]

I’m 220 pounds and I found out that I liked 130 Psi in the rear shock but it kept sagging so I bumped it up to 140. Quite a bit rougher on the trails but it kept the rear up. I need to look into getting the shock re-valved too.

 

[76FOMOCO]

I was going to start with 135 of N2 and if i had to let some out fine and if your on the hill and have to add 5 lbs of air no big deal.

 

[WyoBoy1000]

I was going to start with 135 of N2 and if i had to let some out fine and if your on the hill and have to add 5 lbs of air no big deal.

for those that don't know
if you want to let some out attach the pump and use the release valve. the air or n2 will come out real fast without.

 

[furthur]

Well, air is 80% nitrogen anyway, so pure n2 is only a 20% improvement...?

 

[SaberKitty]

Put me in the softer is better camp at 100 psi.

The first season on the Fox floats, I was the typical anal engineer and checked the pressures in the three shocks every day. Last year I just pulled the rope and went.

I don't miss checking pressures.

 

[bellofello]

Well, air is 80% nitrogen anyway, so pure n2 is only a 20% improvement...?

Exactly... I work at a car shop and just laugh at the people that get pissed when you adjust their tire pressure and they say, "wait did you use nitrogen?? You shouldn't have used air because they shouldn't be mixed" it's always funny when you tell them they've wasted money because "air" IS 70-80% N2 anyways.

 

[WyoBoy1000]

Exactly... I work at a car shop and just laugh at the people that get pissed when you adjust their tire pressure and they say, "wait did you use nitrogen?? You shouldn't have used air because they shouldn't be mixed" it's always funny when you tell them they've wasted money because "air" IS 70-80% N2 anyways.

LOL
I watched my buddie do that once and without even thinking he looked at the guy and said " we only put N2 in all our tires, but we don't charge for it like everyone else " his boss had to leave the room to bust a gut.

 

[bellofello]

LOL
I watched my buddie do that once and without even thinking he looked at the guy and said " we only put N2 in all our tires, but we don't charge for it like everyone else " his boss had to leave the room to bust a gut.

ahahaha I gotta start saying that to customers! It should work like a feckin charm

 

[Bullcamp]

78% nitrogen, 20% oxygen, the rest is other stuff. It all goes in there. Bottom line is that the fox shocks need revalved. My 08 M10 doesn't really have any rear suspension that I can tell. Back is still sore from last year. Going to send my shocks to somebody to have them revalved or God help me, get a doo (did that come out of Me?). Tired of getting pounded.

 

[Icedog]

I'm 235 with with gear and run 115 in the rear shock on my 08 M8. I also run the Geo mod.

 

[WyoBoy1000]

Geo did the mod to get transfer out of the 07 skid, last year he was on here saying the 09 tranfers more than enough, so I wouldn't recommend doing the geo on the 09.

 

[furthur]

Well, there are three geo mods...1)torsion spring slider move, 2)front arm mount move and 3) rear arm mount move for float skids. I would guess you mean the third, Icedog? I'm running the float conversion, and I think that gives me the same geometry, but I don't know about shock valving, or what I have. Planning for a rebuild/revalve on all 4 anyway, so I'll start in the stock holes this year and work from there, but I think getting the right spring in the front of the skidframe will fix it.

John