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Old 08-26-2011, 12:34 AM
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Air suspension question

Has anyone with the air suspension noticed that the ride quality seems to change with outside temperature. It seems to me there is a better ride on mine when the outdoor temps fall into the 65 to 70 deg range and it is noticebly stiffer when its hot out 85 plus. Has anyone else noticed this?
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Old 08-26-2011, 04:54 PM
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Re: Air suspension question

Honestly, no, I haven't noticed a temperature related difference.
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Old 08-26-2011, 06:09 PM
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Re: Air suspension question

Where I live the average temp has been 95 since I've owned it. I just went for a week to North-South Carolina/Tennessee/Georgia and on up into the Smokey Mountians.(1900 mile trip) Average temp was 75 and the nights were high 50's. Then drove back to Florida and 95 humid drenched temps, and I can honestly say; " Nope, I haven't noticed a single bit of difference before during or after."

And even though they call it "air suspension" I'm pretty sure they charge the system with Nitrogen. Nitrogen isn't as sensitive to temp's as oxygen and Hydrogen which expand under heat.
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Old 08-26-2011, 07:14 PM
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Re: Air suspension question

Maybe my tire pressure is just a little higher in the warmer temps making it feel a little stiffer.
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Old 08-26-2011, 08:10 PM
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Re: Air suspension question

I thought there is nitrogen in the system, which should not expand when the temp changes.
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Old 08-26-2011, 08:27 PM
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Re: Air suspension question

Quote:
Originally Posted by outback View Post
I thought there is nitrogen in the system, which should not expand when the temp changes.
"The nitrogen must be Purity Class 5 (99.999% pure)."
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Old 08-26-2011, 08:33 PM
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Re: Air suspension question

No noticeable changes here despite -15F to 100F temp range.
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Old 08-27-2011, 06:04 AM
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Re: Air suspension question

No noticeable ride differences on mine (in the NorthEast). I don't know for certain but I would be surprised if nitrogen wasn't in the system.



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Old 08-27-2011, 06:05 AM
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Re: Air suspension question

Nothing noticeable here either at up to 120F
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Old 08-29-2011, 05:50 AM
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Re: Air suspension question

I think is due to tyre pressure, if too inflate the riding quality is worst.
No?
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Old 08-29-2011, 05:17 PM
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Re: Air suspension question

Quote:
Originally Posted by outback View Post
I thought there is nitrogen in the system, which should not expand when the temp changes.
Boyle's law applies to all gasses - so nitrogen will expand (or increase pressure if the volume doesn't change) proportionally with temperature like any gas.

What makes nitrogen desirable for pressurizing the system is that it doesn't oxidize things and doesn't contain water vapor (like ordinary air.)
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