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View Full Version : What PSI are you running in your MTs on the street



4LowLocked
05-03-2008, 03:52 PM
I just picked up a set of Toyo Open Country MT. They are 10ply tires and the installer recommended running at 65 PSI and no less that 50 PSI.

What do each of you run your MT tires at for street driving. What do you typically air down to when going into the mud?

(sorry if there is a thread about this but the search for PSI brings up way too many camPSIte threads)

4runnerchevy
05-03-2008, 04:27 PM
My swampers run at 30 street and as low as 12 off-road.

ecchamberlin
05-03-2008, 08:27 PM
I run my BFG MT's at 40 on the street and air down to 12 off road. No mud out here though just lots of rocks and sand.

Robinhood4x4
05-04-2008, 07:51 AM
65?!?!? Why??? You'll end up wearing out the center.

I run my BFGs at 35 psi.

neliconcept
05-04-2008, 07:57 AM
you can always do the chalk or paint test, paint a line or chalk a line on the concret and drive over it to see if it spreads evenly over the tread.

now with those Toyos they are freakin thick heavy duty tires, but i doubt that 50psi is the answer.

run them at 42 to start. but usually 36-40 is the answer for street driving.

the higher the PSI the rougher the ride is going to get.

BruceTS
05-04-2008, 08:23 AM
I run my MTR's are 40 psi, but I can run them at 50 psi and just might try, just to see if there is a difference in mileage. offroad I run them anywhere between 10 psi to 20 psi....

At 20 psi on the street my ride is real smooth, but I'm sure the tires heat up more and mileage drops.

4LowLocked
05-04-2008, 07:32 PM
Well I have now run them for a full day with a few hundred kms on them at 65 - they are real rough but its hard to tell if they should be like that or not - I am going to try 50 tomorrow and keep trying until i find the best solution.

Thanks for the input!

3rdCoastRunner
05-04-2008, 08:24 PM
Why 10ply? That seems to be a little much for a 4Runner, ok for an F350 or something but too much for a smaller vehicle IMO

4LowLocked
05-05-2008, 05:37 AM
Why 10ply? That seems to be a little much for a 4Runner, ok for an F350 or something but too much for a smaller vehicle IMO


Thats just the nature of the tire. I went with these as I have had nothing but good things to say about Toyo tires over the years - and I got a better deal than BFGs

4LowLocked
05-05-2008, 08:02 AM
Here is a pic of the tire on the curb with it set at 65... definitely going to drop the pressure

http://i299.photobucket.com/albums/mm283/4lowlocked/CIMG5944.jpg

unitofstuff
06-10-2008, 08:31 AM
I'm running my MT/R's right around 33psi, very even tread wear.

NakSuKow
06-10-2008, 05:19 PM
MT/R's @ 42-45psi

Bajabwk
06-10-2008, 11:01 PM
Mud Terrians at 35 on the street and again, awesome even wear

4LowLocked
06-11-2008, 06:41 AM
I have now set my Toyo MTs at 45 psi after testing them around for a few weeks. The hum has noticeably increased but still very slight. I did the chalk line test at 65, 55, and 45 and got it to wear off evenly at 45.