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OT: Trailer tire PSI advice

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Old 03-22-2010, 03:57 PM
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mobonic
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Default OT: Trailer tire PSI advice

I have a 18' open featherlite trailer that I tow my 997 on.

Its a dual axle.

What is the correct PSI I should have the tire inflated to when Im towing my car... they always look under inflated while towing.

I forgot the psi they are at right now, sorry.

Thanks in advance!
Old 03-22-2010, 04:01 PM
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aj986s
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IIRC, its somewhere around 40-50PSI for trailer tires, but can vary by brand. The spec should be on the sidewall. Most recommend runing close the max spec shown on the tire.
Old 03-22-2010, 04:16 PM
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TexasRider
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I used about 35-40 psi in cooler temps and short runs on my Haulmark but it was enclosed with dual axles. More weight - add pressure.

Last edited by TexasRider; 03-22-2010 at 04:17 PM. Reason: sp
Old 03-22-2010, 04:28 PM
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Marc Shaw
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I have a 18' Aluma trailer with Dexter torsion axles (2 x 3500#).

The manufacturer recommends 40 psi cold & loaded for tire pressures.

Marc
Old 03-22-2010, 05:33 PM
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Gary R.
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I run 45 PSI cold on my 24" Thule enclosed. I believe the tire says "55 PSI MAX" so they should get to around 50 after a good haul.
Old 03-22-2010, 05:52 PM
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jrgordonsenior
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I take the max. cold pressure as listed on the sidewall and deduct 5-7 lbs.....
Read the tires, do not listen to the trailer manufacturer....

PS: When I replaced my Featherlite 3110 tires last year I went to 225's as they have a higher load capacity allowing you to run 10-15lbs. off max pressure producing a smoother ride for your baby. YMMV...

Last edited by jrgordonsenior; 03-22-2010 at 06:08 PM.
Old 03-22-2010, 05:55 PM
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Gary R.
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When I finish my project car i'm going to RSR the trailer... 11" wide wheels!
Old 03-22-2010, 05:59 PM
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Chaos
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50
Old 03-22-2010, 06:29 PM
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dave morris
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I set them at 50 cold.
Old 03-22-2010, 06:35 PM
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TedA
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45+ish....
Old 03-22-2010, 06:36 PM
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Veloce Raptor
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I use 50 cold as well, FWIW.









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Old 03-22-2010, 07:15 PM
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TR6
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50 psi cold on my 20' open deck steel trailer.
Old 03-22-2010, 07:57 PM
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mhm993
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Old 03-22-2010, 08:23 PM
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U4EEAH
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NO BRAINER !!!! Max pressure is on the sidewall (varies by load range, c,d,e)., ALWAYS run within a few pounds of that. Less pressure generates excessive heat leading to failure!!!!!!!
Old 03-22-2010, 08:30 PM
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Crazy Canuck
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Originally Posted by U4EEAH
NO BRAINER !!!! Max pressure is on the sidewall (varies by load range, c,d,e)., ALWAYS run within a few pounds of that. Less pressure generates excessive heat leading to failure!!!!!!!
Exactly right.

Most trailer tires will want 50psi cold. It's marked right on the sidewall.


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