Tyre pressure

Sorry, I know this is not fishing related but i need some advise .

I have just bought a 100 series Landcriuser and it has 285/70/17 Micky Thomson baja atz Tyres. I was just wondering what tyre pressure to run in them for every day use , they had 55 psi in them when i picked up the car but it just seems to hard?

 

Any help would be appreciated .


Wet Dreams's picture

Posts: 105

Date Joined: 29/12/08

Pressure

Mon, 2012-11-19 20:02

Hey mate im actually a tyre fitter so should be able to help, I hope haha. Everyday running around you'll be fine between 32-40psi, 55 is just way to hard and ride will feel like youve got no suspension. I personally run between 38-40psi but I do alot of highway driving in mine so just to help with fuel ecconomy- currently running 265/75r16 BFG All Terrains. A few mates run 34-36psi so id set them around high 30's. Hope that helps!

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Posts: 563

Date Joined: 27/08/09

I run BFG AT 285/70/17s on my

Mon, 2012-11-19 20:06

I run BFG AT 285/70/17s on my patrol. 38-40 psi is fine for normal highway use. Sometimes bringing the rears up to 45psi if I'm loaded up and towing.

 

tim-o's picture

Posts: 4657

Date Joined: 24/05/11

Waaay too hard! Set pressure

Mon, 2012-11-19 20:13

Waaay too hard! Set pressure relative to weight, as WD said, 38, 40 max unless you have a heavy load 34, 36 will ride nice, does depend on tyre types and brands too, for instance a bridgy will cope with a lower tyre pressure than a weaker sidewall kumho or something. Ultimately you want to achieve even tyre wear with the best ride comfort possible.

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flexn's picture

Posts: 232

Date Joined: 19/03/12

i usually run 38-40

Mon, 2012-11-19 20:29

i usually run 38-40

sammy85's picture

Posts: 831

Date Joined: 31/08/10

My brother runs a tyre shop

Mon, 2012-11-19 20:29

My brother runs a tyre shop in wangara and I actually asked him the same question today regarding my new landcruiser and he recommends to run 44 psi all round

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 Plumber and gas fitter- 0415489103

Taffy's picture

Posts: 184

Date Joined: 04/11/10

I run that exact same tyre

Mon, 2012-11-19 21:07

 i run that exact same tyre on my 200 series, 40 in the fronts and 44 in the rears due to the weight of the 2 spare wheel carriers on the back and the soft suspension of the 200 series, works well for me

grantarctic1's picture

Posts: 2546

Date Joined: 03/03/11

Around 40

Mon, 2012-11-19 21:08

Around 40 psi is pretty standard. On the sand i start at 20 psi then adjust from there depending on conditions.

sea-kem's picture

Posts: 15034

Date Joined: 30/11/09

38 on the road  and 15 on the

Mon, 2012-11-19 21:19

38 on the road  and 15 on the sand with the boat on the front (boat weighs around 7-800kg ). Boat tyres set at 25 works well if you don't stop till the wet stuff ;)

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Vinesh87's picture

Posts: 2751

Date Joined: 02/04/11

42 in my cruiser, get s a bit

Mon, 2012-11-19 21:21

42 in my cruiser, get s a bit hard sometimes. Run closer to 50 in the workcar on the back.

Posts: 457

Date Joined: 03/09/10

Tim o

Mon, 2012-11-19 22:05

is spot on, all depends on the individual tyre. A greater ply  tyre wall can handle less pressure, but when loaded up will need to have the pressure increased according to load.

A less ply sidewall will give a great ride around town but I would be inclined to increase the pressure if travelling on the highway for any distance or add load to the vehicle.

This would apply when towing heavy loads.

Obviously when driving on the beach lower your tyre pressure according to the conditions.

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Date Joined: 23/02/12

Thanks

Mon, 2012-11-19 22:25

 Thanks for the advise , really appreciate it.

WSHN4FSHN's picture

Posts: 224

Date Joined: 19/09/12

Different tyres - different pressures

Tue, 2012-11-20 16:54

I was running 32" BFG All Terrains on my 75 series ute and they ran fine at 36 psi all round for the highway. Wind the clock back 3 months and I upgraded to 33" Cooper S/T's. Totally different story and being a new tyre I asked whoever I could about what pressure to run. I got 44, 40, 38, 34, 41 and soon realised I was going to need to figure this out for myself. Coopers however recommended 28-40psi for that tyre so I had a range to work with. I started with the recommendation from the place they were fitted at 40psi. I nearly hit my head on the roof on the first bump I hit!! So I went to 36psi like I had before thinking this will do until I can work out what is best. I live on a gravel road and when going from that to bitumen, I could see that when not carrying any load, the shoulder of the tyre wasn't even making contact on the road. So after a few tests and adjustments to get complete contact on the road with the full width of the tread, I have settled on 31psi in the front and 30psi in the rear and haven't looked back. Obviously once the load changes I will be changing the pressure with it. Hope that helps somewhat.

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