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05-28-2014, 05:13 PM
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Ford Ranger Driver
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Join Date: Mar 2013
Posts: 562
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Bigger Tire Size PSI?
I got 32s on today and on 30psi, it looks like its over inflated. Looking straight across the tread i can see the middle poke out more than the sides. My specs are in my sig.
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2005 XL 2.3 (duratec), 15x8 American Racing Baja wheels, BFGoodrich 32x11.50 all terrains, 4.10 open diffs, CB/PA, ORI Baja Eliminator Lightbar(sold), Hella 500 Foglights, Fabtech upper control arms, camburg coil springs, Maxtrac "4" inch spindles and shackles, 32 inch Bfgoodrich AT's, Spyder Halo Headlights, custom rear tube bumper with integrated hitch, custom front prerunner bumper with skidplate, roadrunner fiberglass front fenders, pulled bedsides
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05-28-2014, 05:15 PM
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I Know This Truck . . .
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Join Date: Mar 2013
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Re: Bigger Tire Size PSI?
Sidewall should have the pressure rating on it.
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2007 Sport |Dark Shadow Grey |3.slow |2WD |Black Billet Grill |Anzo LED's
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05-28-2014, 05:18 PM
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Ford Ranger Driver
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Join Date: Dec 2013
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Quote:
Originally Posted by Markous
Sidewall should have the pressure rating on it.
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that's the max psi, not what you should run
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Quote:
Originally Posted by 2wdMuddin
I got 32s on today and on 30psi, it looks like its over inflated. Looking straight across the tread i can see the middle poke out more than the sides. My specs are in my sig.
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look up chalk test and do that
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I'm running 24 psi in my 33x12.5r15s on 15x10s and they are still a tad over inflated
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Too much, look at my build thread
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05-28-2014, 05:20 PM
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sooo fuckin deeeaaadddd
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Join Date: Apr 2011
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Re: Bigger Tire Size PSI?
should be around 30 psi!
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Fx4 levelII
enough^^ said
t-bar cranked 33x10.5x15 bfg all terrain ko2-15x8 pro comp 7031- blacked out headlight and corners mustang dome Westin brushguard March 2014 TOTM
Quote:
Originally Posted by ford4thot
Yeah fuck Chevy
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05-28-2014, 05:24 PM
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Ford Ranger Driver
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Join Date: Mar 2013
Posts: 562
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Re: Bigger Tire Size PSI?
Quote:
Originally Posted by 02Fx4red
look up chalk test and do that
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Alright im gonna see that and try it tomorrow.
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2005 XL 2.3 (duratec), 15x8 American Racing Baja wheels, BFGoodrich 32x11.50 all terrains, 4.10 open diffs, CB/PA, ORI Baja Eliminator Lightbar(sold), Hella 500 Foglights, Fabtech upper control arms, camburg coil springs, Maxtrac "4" inch spindles and shackles, 32 inch Bfgoodrich AT's, Spyder Halo Headlights, custom rear tube bumper with integrated hitch, custom front prerunner bumper with skidplate, roadrunner fiberglass front fenders, pulled bedsides
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05-28-2014, 05:27 PM
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<-- PAID OFF!
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Join Date: May 2011
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Re: Bigger Tire Size PSI?
chalk test gave me ~32psi as a good pressure to go with for my 33" KM2's.
Quote:
Originally Posted by 02Fx4red
I'm running 24 psi in my 33x12.5r15s on 15x10s and they are still a tad over inflated
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That seems a bit low but maybe the 15x10's have something to do with the tire wear.
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2002 DWB Ford Ranger XLT 3.0 V6 FF 4 Door
3" Doetsch spindle lift, 2.5" Camburg CRS coil lift, BTF uniball UCA's, ORW limit straps
Shackles, blocks, custom leaf pack, Bilstein 5100's/5125's F/R
33" GoodYear MTR's, 8.8 swap with 4.56 gears and L/S
Baja Designs 20" OnX, HID converted Hella's
Quote:
Originally Posted by 87rangerSummers
He has a badass lifted 2wd. He is being a smartass
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05-28-2014, 05:28 PM
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sooo fuckin deeeaaadddd
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Join Date: Apr 2011
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Re: Bigger Tire Size PSI?
Quote:
Originally Posted by yeatzee
chalk test gave me ~32psi as a good pressure to go with for my 33" KM2's.
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this^^ is wat I get!
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Fx4 levelII
enough^^ said
t-bar cranked 33x10.5x15 bfg all terrain ko2-15x8 pro comp 7031- blacked out headlight and corners mustang dome Westin brushguard March 2014 TOTM
Quote:
Originally Posted by ford4thot
Yeah fuck Chevy
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05-28-2014, 05:31 PM
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Ford Ranger Driver
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Join Date: Dec 2013
Posts: 1,609
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Quote:
Originally Posted by yeatzee
chalk test gave me ~32psi as a good pressure to go with for my 33" KM2's. That seems a bit low but maybe the 15x10's have something to do with the tire wear.
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When I was running 30 psi in them there was a
About a inch of tread on either side that never touched the pavement
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05-28-2014, 05:33 PM
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Ford Ranger Driver
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Join Date: Mar 2013
Posts: 562
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Re: Bigger Tire Size PSI?
hmm well just by looking, 30psi is too much. I think everyone is bound to have different psi's due to their different specs.
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2005 XL 2.3 (duratec), 15x8 American Racing Baja wheels, BFGoodrich 32x11.50 all terrains, 4.10 open diffs, CB/PA, ORI Baja Eliminator Lightbar(sold), Hella 500 Foglights, Fabtech upper control arms, camburg coil springs, Maxtrac "4" inch spindles and shackles, 32 inch Bfgoodrich AT's, Spyder Halo Headlights, custom rear tube bumper with integrated hitch, custom front prerunner bumper with skidplate, roadrunner fiberglass front fenders, pulled bedsides
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05-28-2014, 05:34 PM
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Ford Ranger Driver
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Join Date: Dec 2013
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Re: Bigger Tire Size PSI?
Quote:
Originally Posted by 2wdMuddin
hmm well just by looking, 30psi is too much. I think everyone is bound to have different psi's due to their different specs.
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Being a 32" too. Chalk will set things strait
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05-28-2014, 05:53 PM
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Ford Ranger Driver
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Join Date: Oct 2011
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Generally, the bigger the tire, the less pressure you will need. Check the pressure only after they have set cold for at least 6 hours. Best time to check is coldest morning of the year or the first morning it is 32* or less where the truck is setting.
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05-29-2014, 01:54 PM
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Ford Ranger Driver
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Join Date: Mar 2013
Posts: 562
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Re: Bigger Tire Size PSI?
Well i couldnt find any chalk and it was raining so i just looked to see when my tread was making full contact. I've got 25psi up front and 20 in the rear
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2005 XL 2.3 (duratec), 15x8 American Racing Baja wheels, BFGoodrich 32x11.50 all terrains, 4.10 open diffs, CB/PA, ORI Baja Eliminator Lightbar(sold), Hella 500 Foglights, Fabtech upper control arms, camburg coil springs, Maxtrac "4" inch spindles and shackles, 32 inch Bfgoodrich AT's, Spyder Halo Headlights, custom rear tube bumper with integrated hitch, custom front prerunner bumper with skidplate, roadrunner fiberglass front fenders, pulled bedsides
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05-29-2014, 02:00 PM
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Old man driver.
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Join Date: Nov 2009
Posts: 14,894
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Re: Bigger Tire Size PSI?
My 32's have 35 psi and have lasted me 9 years/60,000 miles+
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2001 Ranger Edge 4x4 (sold)
2006 F150 Lariat 4x4 (sold)
2007 Explorer XLT (Destroyed by Deer on highway)
2014 Explorer XLT (inherited from parents)
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05-29-2014, 02:07 PM
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Ford Ranger Driver
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Join Date: Oct 2011
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Is it 35 psi at 32* or 35 psi at 85* ?
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05-29-2014, 05:53 PM
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Ford Ranger Driver
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Join Date: Mar 2013
Posts: 562
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Quote:
Originally Posted by machine
My 32's have 35 psi and have lasted me 9 years/60,000 miles+
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Do you think its also got to do with weight? Im just a single cab 2.3. Also at 35 were your tires at full contact all around? My outer tread didnt even touch the road until I got as low as I did. Also my stock tires were only 225/70/15 so I think the jump from a 27 inch tire to a 32 was a bit much opposed to some people going from 31 stock size to a 32
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2005 XL 2.3 (duratec), 15x8 American Racing Baja wheels, BFGoodrich 32x11.50 all terrains, 4.10 open diffs, CB/PA, ORI Baja Eliminator Lightbar(sold), Hella 500 Foglights, Fabtech upper control arms, camburg coil springs, Maxtrac "4" inch spindles and shackles, 32 inch Bfgoodrich AT's, Spyder Halo Headlights, custom rear tube bumper with integrated hitch, custom front prerunner bumper with skidplate, roadrunner fiberglass front fenders, pulled bedsides
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