Fox vs Bilstein vs OME
CF Veteran
Joined: Jan 2008
Posts: 3,671
Likes: 11
From: LI, NY
Year: 1998
Model: Cherokee
Engine: 4.0, bolt ons for days...
You're gonna feel potholes no matter what. It's hard to describe.. When you go over a random pothole or bump at speed now, your jeep hits it and kinda floats up and down a bit after right? With a stiffer suspension, you'll hit it, then it's over. There's no modulation afterwards.
Junior Member
Joined: Apr 2011
Posts: 88
Likes: 3
From: Nebraska
Year: 1997
Model: Cherokee
Engine: 4.0L
I sell BDS's fox shocks their advice was that the fox shocks are too stiff for a jeep, since it is a light vehicle. Between the 3 I would go OEM, but look in to a twin tube gas shock, like the Zone offload nitro shocks. That's what I have on my 97 with 4.5" lift. They give you the advantages of a gas shock with out sacrificing the ride too much. The fox and bilstein have fairly high pressure 300 to 400 psi, the zones are closer to 150 to 200
I sell BDS's fox shocks their advice was that the fox shocks are too stiff for a jeep, since it is a light vehicle. Between the 3 I would go OEM, but look in to a twin tube gas shock, like the Zone offload nitro shocks. That's what I have on my 97 with 4.5" lift. They give you the advantages of a gas shock with out sacrificing the ride too much. The fox and bilstein have fairly high pressure 300 to 400 psi, the zones are closer to 150 to 200
Fox's 2.0 entry level shock is available in a variety of valving options and is rebuildable, so even if ya dont like the valving, you can play with the shim stacks to acheive the valving you want. Fox and bilstein do not reccomend you charge their shocks anywhere near 300-400 psi. Iirc fox calls for around 200 max, and i can imagine bilstein isnt far off. I ran my foa 2.0s at 150. There is no ride quality being sacrificed, its all in how the shock is setup for whoever is driving the rig. If you want to go fast and keep the jeep under control, the low speed performance is affected, if you just go slow and want a cushy ride, the high speed performance is affected.
Junior Member
Joined: Apr 2011
Posts: 88
Likes: 3
From: Nebraska
Year: 1997
Model: Cherokee
Engine: 4.0L
Originally Posted by ktmracer419
You clearly do not know what you are talking about.
Fox's 2.0 entry level shock is available in a variety of valving options and is rebuildable, so even if ya dont like the valving, you can play with the shim stacks to acheive the valving you want. Fox and bilstein do not reccomend you charge their shocks anywhere near 300-400 psi. Iirc fox calls for around 200 max, and i can imagine bilstein isnt far off. I ran my foa 2.0s at 150. There is no ride quality being sacrificed, its all in how the shock is setup for whoever is driving the rig. If you want to go fast and keep the jeep under control, the low speed performance is affected, if you just go slow and want a cushy ride, the high speed performance is affected.
The BILSTEIN Gas Pressure Shock Absorber is a telescopic, mono-tube unit filled with nitrogen gas and hydraulic oil. The gas, sealed in a special compartment at 360 psi (25 times atmospheric pressure) exerts constant high pressure on the oil column eliminating cavitation and foaming. The absolute elimination of foaming (no air forming in the oil) results in uninterrupted damping for even the smallest wheel deflections (2 mm): a performance which no other type of shock claims or matches.
So I would say the 360 psi is fairly close to the 300 - 400 range that I mentioned. So CLEARLY you don't know everything.
Wow little aggressive there. I was not talking about the fox rebuildable shock I was talking about the fox shocks that BDS sells, they have vehicle specific one. As far as the pressure, this is off of bilstein's web site
The BILSTEIN Gas Pressure Shock Absorber is a telescopic, mono-tube unit filled with nitrogen gas and hydraulic oil. The gas, sealed in a special compartment at 360 psi (25 times atmospheric pressure) exerts constant high pressure on the oil column eliminating cavitation and foaming. The absolute elimination of foaming (no air forming in the oil) results in uninterrupted damping for even the smallest wheel deflections (2 mm): a performance which no other type of shock claims or matches.
So I would say the 360 psi is fairly close to the 300 - 400 range that I mentioned. So CLEARLY you don't know everything.
The BILSTEIN Gas Pressure Shock Absorber is a telescopic, mono-tube unit filled with nitrogen gas and hydraulic oil. The gas, sealed in a special compartment at 360 psi (25 times atmospheric pressure) exerts constant high pressure on the oil column eliminating cavitation and foaming. The absolute elimination of foaming (no air forming in the oil) results in uninterrupted damping for even the smallest wheel deflections (2 mm): a performance which no other type of shock claims or matches.
So I would say the 360 psi is fairly close to the 300 - 400 range that I mentioned. So CLEARLY you don't know everything.
Valving has much more to do with the ride over pressure charge regardless. And to say a cheap twin tube is the better shock over a properly valved rebuildable monotube is just silly.
Last edited by ktmracer419; Jul 8, 2012 at 10:32 AM.
I sell BDS's fox shocks their advice was that the fox shocks are too stiff for a jeep, since it is a light vehicle. Between the 3 I would go OEM, but look in to a twin tube gas shock, like the Zone offload nitro shocks. That's what I have on my 97 with 4.5" lift. They give you the advantages of a gas shock with out sacrificing the ride too much. The fox and bilstein have fairly high pressure 300 to 400 psi, the zones are closer to 150 to 200
I pushed both of them on the floor. Those KYB's had tons of pressure, the Bilstein, my kid could do. No leaks, only 1 month old.
I called Bilstein, and the rep said they are making the shocks softer due to complaints. So, they are chaging the valving or psi, not sure which. But, I wasn't happy.
CF Veteran
Joined: Jan 2008
Posts: 3,671
Likes: 11
From: LI, NY
Year: 1998
Model: Cherokee
Engine: 4.0, bolt ons for days...
I sell BDS's fox shocks their advice was that the fox shocks are too stiff for a jeep, since it is a light vehicle. Between the 3 I would go OEM, but look in to a twin tube gas shock, like the Zone offload nitro shocks. That's what I have on my 97 with 4.5" lift. They give you the advantages of a gas shock with out sacrificing the ride too much. The fox and bilstein have fairly high pressure 300 to 400 psi, the zones are closer to 150 to 200
Wow little aggressive there. I was not talking about the fox rebuildable shock I was talking about the fox shocks that BDS sells, they have vehicle specific one. As far as the pressure, this is off of bilstein's web site
The BILSTEIN Gas Pressure Shock Absorber is a telescopic, mono-tube unit filled with nitrogen gas and hydraulic oil. The gas, sealed in a special compartment at 360 psi (25 times atmospheric pressure) exerts constant high pressure on the oil column eliminating cavitation and foaming. The absolute elimination of foaming (no air forming in the oil) results in uninterrupted damping for even the smallest wheel deflections (2 mm): a performance which no other type of shock claims or matches.
So I would say the 360 psi is fairly close to the 300 - 400 range that I mentioned. So CLEARLY you don't know everything.
The BILSTEIN Gas Pressure Shock Absorber is a telescopic, mono-tube unit filled with nitrogen gas and hydraulic oil. The gas, sealed in a special compartment at 360 psi (25 times atmospheric pressure) exerts constant high pressure on the oil column eliminating cavitation and foaming. The absolute elimination of foaming (no air forming in the oil) results in uninterrupted damping for even the smallest wheel deflections (2 mm): a performance which no other type of shock claims or matches.
So I would say the 360 psi is fairly close to the 300 - 400 range that I mentioned. So CLEARLY you don't know everything.
twintubes run at a more "normal" pressure bc theyre designed with the oil in one section of the shock, and gas in the other. there is no internal floating piston (or IFP, which, described most elementary, is a metal cylinder with holes in it and some rubber seals) to keep the gas and oil separated.
since OEM-style monotube shocks are so small, the pressure NEEDS to be much higher so the gas can do its job. simple as that. adjusting gas pressure is the LAST thing you do to change the feel of a shock, it is far too unreliable of an adjustment to be constant in environments and applications. my bilstein 9100s are stiff as hell, and i charged them to 225psi. if i drop to 150psi, i probably wont notice a difference.
I took off my Frontier and send back my Bilstein shocks and got the KYB's. The Bisltein shocks were too soft. The KYB's are much better. Wife drives it as her daily driver, and even thanked me. She said it is much better.
I pushed both of them on the floor. Those KYB's had tons of pressure, the Bilstein, my kid could do. No leaks, only 1 month old.
I called Bilstein, and the rep said they are making the shocks softer due to complaints. So, they are chaging the valving or psi, not sure which. But, I wasn't happy.
I pushed both of them on the floor. Those KYB's had tons of pressure, the Bilstein, my kid could do. No leaks, only 1 month old.
I called Bilstein, and the rep said they are making the shocks softer due to complaints. So, they are chaging the valving or psi, not sure which. But, I wasn't happy.
real shocks are finally starting to catch on in the aftermarket, and not just racing applications. hell, just 2-3 years ago people thought they could race KOH with air shocks...
Last edited by 93XJLI; Jul 8, 2012 at 11:28 AM.


