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ZUKIWORLD Discussion Forum => Suzuki 4x4 Forum => Topic started by: knifeman on August 02, 2004, 06:42:21 AM

Title: tire pressure
Post by: knifeman on August 02, 2004, 06:42:21 AM
Hi Guys,
What pressure should I set on BFGoodrich AT tires size 215/75/15 under my Jimny?
Thanks in advance !

Greetz, Knife
Title: Re: tire pressure
Post by: explosivo on August 02, 2004, 06:52:46 AM
35psi seems to be pretty common/
Title: Re: tire pressure
Post by: knifeman on August 02, 2004, 07:02:03 AM
sure this not to much? it only weights 1100 kg
Title: Re: tire pressure
Post by: explosivo on August 02, 2004, 07:03:51 AM
I'm pretty sure that in the doorjam of my Tracker it says 35 (or something pretty close... 33 or something).
Title: Re: tire pressure
Post by: nighthawk801 on August 02, 2004, 07:14:14 AM
I'd probably run 25-30, personally. I like the ride of lower pressure on a lighter vehicle, and a Jimny is probably even lighter than a Sidekick/Escudo.
Title: Re: tire pressure
Post by: SpinalTap on August 02, 2004, 07:22:15 AM
The tire shop where I bought my Michelins recommended 23lbs on snow/ice and 28lbs on dry.  This has worked out well for me and I have over 50K mi on them. Next week I'm getting my 235 BFG AT's though ;D (just waiting for the wheels to come in)
Title: Re: tire pressure
Post by: Kreg on August 02, 2004, 07:27:36 AM
You have a Jimny!

I envy you man.  8)

I have 31" BFG MTs and I run them at 22psi on road, and at 7psi off road.
Title: Re: tire pressure
Post by: juggster on August 02, 2004, 07:54:23 AM
on my sidekick with goodyear wranglers 235/75/r15 i run 22psi onroad
Title: Re: tire pressure
Post by: TN_Tracker on August 02, 2004, 11:21:00 AM
26 psi on my Tracker
Title: Re: tire pressure
Post by: Mike71 on August 02, 2004, 02:34:44 PM
i went from 25psi to 35...geezus right nope the tires bite better and ride smoother

i figured the higher pressure would ride like crap but it is not any worse then it was at 25psi (considering kicks ride like a brick anyways)
Title: Re: tire pressure
Post by: explosivo on August 02, 2004, 02:48:53 PM
Quote
(considering kicks ride like a brick anyways)

Lift it. Then you can talk about a brick-like ride ;D
Title: Re: tire pressure
Post by: jerryp58 on August 02, 2004, 03:11:27 PM
You should have a tag on the door jamb area somewhere that has the recommended pressure.  

Usually, it's pretty low.  I guess to provide a little softer, more comfortable ride.

I've tried the lower door jamb pressure and didn't have any problems, but, FWIW, at this point in time, I've decided to run all my vehicle's tires around 30-33 PSI.

At that higher PSI, the ride is fine and the wear is fine, and the front tires don't look flat.
Title: Re: tire pressure
Post by: knifeman on August 03, 2004, 12:08:46 AM
The door patch says 23 psi (for the original tire 205/70/15).
Should I increase it for the bigger tires (215/75/15)? 23 psi seems really low, cause at that pressure the tires have a big 'belly'.
Title: Re: tire pressure
Post by: Zukipilot on August 03, 2004, 12:21:49 AM
I just had a set of Coopers replaced on my X-90 last night. I ran them for about 45K at 25-28 and the tread wear was fine (except for the out of round peice of  :-X that the dealer would not replace). Wally World put me some new BFG's om at 35 PSI and it wrode decent on the commute to work this morning, but I'm going to lower it to 28 tonight and see how it rides.

If you tire looks a bit FAT at the contact patch, high speed corner it a few times or make some real tight quick turns in a parking lot (where your almost sliding the tires. Then check the tires for wear marks on the side wall. If you see some definately raise the pressure. If not, just watch the tread wear. If the tread starts to wear quicker on the outside edges you pressure is to low, if it wears quicker in the middle the pressure is to high and uniform wear is just right.

Zig
Title: Re: tire pressure
Post by: jerryp58 on August 03, 2004, 04:02:45 AM
Quote
high speed corner it a few times or make some real tight quick turns in a parking lot (where your almost sliding the tires. Then check the tires for wear marks on the side wall.Zig


I've never tried this, but I've seen this technique done on some TV show and it seems to make sense.  On the show, they used a few chalk marks on the sidewall and the tread to see exactly where the "tire met the road" after some slaloms & circles.