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post #1 of 17 Old 06-26-2012, 07:52 AM Thread Starter
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Tire Pressure

What tire pressure are you guy's running. I have Toyo's 255/85/16. A tire shop said that when not towing or hauling that 40PSI is perfect for ride and tire wear. What do you think?

POLARBEAR - 2003 F-250 SD CC SB FX4, 6.0, 3:73 gears, EGR & Cooler Delete, Bulletproof Oil Cooler, ARP Studs, A.R.E. Topper, Bedrug, Zoodad, 5" Magnaflow turbo back, K & N cold air intake, coolant filter, EDGE INSIGHT CTS, SCT X3 Tuned by Vivian, Energy Suspension Master Bushing kit, RiffRaff Boots, Blue Spring, 6.4 Banjo's, Fumoto Oil Valve, Fumoto water drain plug, Whistler 2000 Watt Inverter, DC Power 200amp Alt. Rebuilt FICM w/Atlas 40, Riff Raff Boots and counting.
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post #2 of 17 Old 06-26-2012, 07:54 AM
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I have 35" nitto trail grapplers, and I run 65psi for the street daily driving and towing, and 30 if going to the desert and 15 front and rear when towing the bronco at the dunes.


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post #3 of 17 Old 06-26-2012, 07:55 AM
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Should be running 45 front and 40 rear unloaded and I wouldn't go higher than 50 when towing (in a proper E rated tire). You're going to kill your ride going higher than that.
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post #4 of 17 Old 06-26-2012, 07:57 AM
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I am running an E rated tire and with my bilstiens and 65psi my ride is just fine. I think from the factory on the sticker in the door, these trucks call for about that anyway.


2006 F250 FX4 Crew Cab - ARP Studs, EGR Delete, Edge Insight w/pyro, SCT X3 with SRL+
2005 Mustang GT - slightly modded
1986 F250 IDI 4x4 ZF5 - Sold
1979 Bronco 460
1967 M35A2 Deuce w/winch FOR SALE!!!
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post #5 of 17 Old 06-26-2012, 08:01 AM
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So it seems for a 4wd F250 SRW:

80psi rear =3415 lbs per tire x 2 = 6830 lbs (your rear axle rating)

55psi front = 2600 psi per tire x 2 = 5200 lbs (your front axle rating)

Is what the factory calls for with stock E rated tires.


2006 F250 FX4 Crew Cab - ARP Studs, EGR Delete, Edge Insight w/pyro, SCT X3 with SRL+
2005 Mustang GT - slightly modded
1986 F250 IDI 4x4 ZF5 - Sold
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post #6 of 17 Old 06-26-2012, 08:05 AM Thread Starter
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Originally Posted by OCVeloMan View Post
Should be running 45 front and 40 rear unloaded and I wouldn't go higher than 50 when towing (in a proper E rated tire). You're going to kill your ride going higher than that.
I am running Bilstiens and I have had it at 65 and was a really stiff and bumpy ride. I lowered it to 50 on all four yesterday and was amazed at the ride. Very nice. I'll try that 40 rear and 45 front and see and re-post. Don't want to shorten the life of my Toyo's at $1200 a set. Thanks for the info.

POLARBEAR - 2003 F-250 SD CC SB FX4, 6.0, 3:73 gears, EGR & Cooler Delete, Bulletproof Oil Cooler, ARP Studs, A.R.E. Topper, Bedrug, Zoodad, 5" Magnaflow turbo back, K & N cold air intake, coolant filter, EDGE INSIGHT CTS, SCT X3 Tuned by Vivian, Energy Suspension Master Bushing kit, RiffRaff Boots, Blue Spring, 6.4 Banjo's, Fumoto Oil Valve, Fumoto water drain plug, Whistler 2000 Watt Inverter, DC Power 200amp Alt. Rebuilt FICM w/Atlas 40, Riff Raff Boots and counting.
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post #7 of 17 Old 06-26-2012, 04:30 PM
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75 psig in the original E rated tires. Got almost 80k miles out of them

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post #8 of 17 Old 06-26-2012, 04:40 PM
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Originally Posted by bismic View Post
75 psig in the original E rated tires. Got almost 80k miles out of them
I have no lift.bone stock on 20's i was satisfied with 45000 on goodyear wranglers
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post #9 of 17 Old 06-26-2012, 04:49 PM
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I have 75psi all the way around

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Originally Posted by madpowerstroke View Post
Try spinning a turbo with compressed air and hit it with diesel clean as you inhale at the turbo outlet, I call it a turbo bong.........that's some good stuff, makes you come up with all kinds of crazy ideas.


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post #10 of 17 Old 06-26-2012, 05:51 PM
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I run i think 65front and 72 rear. that plus rotating the tires every 5k has kept nice even flat wear.

I may lower them for my trip to VA beach this weekend and see how my mileage does.

-Jason

--I shoot a Nikon D300. I carry a Smith & Wesson. I race a 1997 BMW E36. I wrench with Snap-On.
I Boost a 6.0Powerstroke --

--I donít Fail; I succeed at finding what doesnít work--

--Horsepower is how fast you hit the wall and torque is how far you take the wall with you--

--If you can leave rubber from the apex to the braking zone, you have enough power--

--2004 F250 Crew Cab Short Bed FX4--1997 BMW 328is--
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