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Philip Pledger (Philoz)
New Member
Username: Philoz

Post Number: 1
Registered: 02-2003
Posted on Saturday, February 22, 2003 - 11:29 am:   Edit Post Delete Post Print Post

I run my 265/75/16 Pirelli Scorpions at 40psi front & rear as reccomended by the tyre store.
This is fine for the highway and at the beach I deflate them to 16psi which is fine also, my problem is when I hit the dirt tracks here in West Oz especially the corrugations, 40psi is just to hard and bounces the disco all over the place.

Can anyone suggest what psi I can drop these tyres to for these tracks and still expect reasonable tyre wear, or is this going to be trial and error?
 

Philip Pledger (Philoz)
New Member
Username: Philoz

Post Number: 2
Registered: 02-2003
Posted on Saturday, February 22, 2003 - 11:40 am:   Edit Post Delete Post Print Post

Correction on the Tyre size they are 245/75/16
 

Milan (Milan)
Member
Username: Milan

Post Number: 132
Registered: 10-2002
Posted on Saturday, February 22, 2003 - 04:57 pm:   Edit Post Delete Post Print Post

Well the stock tire pressure recomendation is 26 frt, 36 rr. You having bigger tires with more volume of air, should run less than that. How much less depends on the load rating of the tires. 245s are typically rated for quite a bit more load than 235s.

I'd say try 24 frt and 34 rr and see how it drives.
 

Philip Pledger (Philoz)
New Member
Username: Philoz

Post Number: 3
Registered: 02-2003
Posted on Monday, February 24, 2003 - 09:53 am:   Edit Post Delete Post Print Post

Thanks Milan, this weekend will be the test.
 

Milan (Milan)
Member
Username: Milan

Post Number: 138
Registered: 10-2002
Posted on Monday, February 24, 2003 - 11:26 am:   Edit Post Delete Post Print Post

Let me know how it turns out. You can also draw a chalk line across the tire to see if you're running over or under-inflated.
 

Jaime (Blueboy)
Senior Member
Username: Blueboy

Post Number: 539
Registered: 02-2002
Posted on Monday, February 24, 2003 - 11:44 am:   Edit Post Delete Post Print Post

to elaborate on what Milan mentioned:

you put a chalk line across the tread and drive straight for a few
revolutions of the tire. the chalk should wear evenly with the correct
pressure. more chalk worn in the center means too much air. chalk worn
near the shoulders mean too little air.

Jaime

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