Originally posted by Hendo66
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Last edited by Brett1979; 03-02-2013, 09:21 AM.2005 120 series V6 Grande, 2 inch susp lift (King/EFS combo), 32 inch MT’s, Safari Snorkel, rear diff lock, breathers, Light Force spotlights, UHF, dual batteries.
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The maximum pressures and loads are written on the side of the tyre so you do need to be a bit careful as some 'OE' fitments on some 4x4's have a maximum pressures of 32psi
Generally all the decent non oe tyres are able to be pumped up 65 or 80 psi , all depending on their construction, C,D or E load rating
The pressures in you door pillar are only a recommendation as the manufacturer has no idea as to how they will be used and usually those pressure are way to low and set for comfort no wear2012 Graphite GXL T/D Auto, with all the normal crap you fit
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I was told today by a tyre dealer who I trust that Cooper redesigned their tyres about 12 months ago and tested them in Australia, as they wanted to overcome the very poor reputation they had in Australia due to problems including delamination. So he reckons that the new designed Coopers have been trouble free (for his customers at least).
I have never owned Coopers however I may change my mind about the Bridgestone's or Yoko's that I was intending to buy for the 150. He has recommended the AT3 as I am unsure whether I could live with the much stronger but more aggressive ST Maxx (concerned the Maxx will be a bit harsher and noisier)
Cheers......WayneWhite 2012 GXL 150 TD Auto. Work in progress. Aiming to spend less than when I kitted out the 120!
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Originally posted by hulbyw View PostI was told today by a tyre dealer who I trust that Cooper redesigned their tyres about 12 months ago and tested them in Australia, as they wanted to overcome the very poor reputation they had in Australia due to problems including delamination. So he reckons that the new designed Coopers have been trouble free (for his customers at least).[B][SIZE=4]ntp
[/SIZE][/B][COLOR=#000040][B][SIZE=1]Love the Outback............. Love my Prado.[/SIZE][/B][/COLOR]
[I][SIZE=1][URL="http://i520.photobucket.com/albums/w328/ntpryce/Picture23.png"]My Prado[/URL][/SIZE][/I], [I][SIZE=1][URL="http://i520.photobucket.com/albums/w328/ntpryce/MyExtras.png"]My Extras[/URL][/SIZE][/I]
[B]4wdriving First Party[/B][COLOR=#0000ff] - [/COLOR][B][COLOR=#0000ff]dןǝɥ ɹoɟ ןןɐɔ 'sıɥʇ pɐǝɹ uɐɔ noʎ ɟı[/COLOR][/B]
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Originally posted by hulbyw View PostI was told today by a tyre dealer who I trust that Cooper redesigned their tyres about 12 months ago and tested them in Australia, as they wanted to overcome the very poor reputation they had in Australia due to problems including delamination. So he reckons that the new designed Coopers have been trouble free (for his customers at least).
I have never owned Coopers however I may change my mind about the Bridgestone's or Yoko's that I was intending to buy for the 150. He has recommended the AT3 as I am unsure whether I could live with the much stronger but more aggressive ST Maxx (concerned the Maxx will be a bit harsher and noisier)
Cheers......Wayne[SIZE=1][B][COLOR=#ff0000]2010 Silver GXL Prado T/D Auto.
[/COLOR][COLOR=#0000ff]2014 Leisure Matters X-Track Camper Trailer.[/COLOR][/B][/SIZE]
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Originally posted by Fabes View PostIve got the ST MAXX fitted, fantastic off road as I'm sure a few could attest to from our last day out at City View 4wd Park, it is early days ive only done about 6k so time will tell. I see in your signature that you have a roof rack, I find a cant here the tires over the wind noise of the roof rack so don't let that put you off. I've had no issues in the wet either (which we have had a lot of lately) which I was a little bit concerned with given their aggressive pattern.[B]Prado 120 Series Build; [/B][U][url]http://www.pradopoint.com/showthread.php?24346-Desert-Dueler-120[/url][/U]
[B]Customline Off Road Deluxe CT Build; [/B][U][url]http://www.myswag.org/index.php?topic=38826.0[/url][/U]
[B]WS Tarpon 120 Kayak Build; [/B][U][url]http://www.kfdu.com.au/forum/viewtopic.php?f=12&t=40099[/url][/U]
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I was told by the dealer when having my BFG's fitted to start at 40 psi and take it from there but he recommended 40psi as I had a suspension lift and that would decrease the body roll when cornering. I have run mine at 40 psi ever since and rotate all 5 every 5000 km they wear beautifully the dealer has commented how well also.
On the occasion that I have dropped back to 36 psi, I really notice the increased body roll when cornering.
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Originally posted by MDS69 View PostAll this talk about Tyre pressures, OE tyres are passenger construction and most tyres like MT, BFG, Coopers etc are LT and will happily handle between 40 to 60psi2012 Graphite GXL T/D Auto, with all the normal crap you fit
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Cooper tyre pressure chart indicates to run the ST Maxx between 32 - 38psi. Fair to say its all relative to what type of driving your doing eg. long distance bitumen and the weight or load capacity on the vehicle or towing. Ive found that the rears, once warm, are always at a higher psi than the fronts even when all set at a resting 'cold' temp. Obviously the weight on the back causes this and its pretty normal to witness this effect. Due to the fact that I dont travel long constant distance on the asphalt and really only take short trips on the black stuff until im down to the beach or off on an unsealed track I set mine at 32 psi cold and when warmed up they increase to around 36psi front/ 38psi rear. The 36psi mark is what Cooper recommend for unsealed smooth gravel tracks hence why I operate in this range to suit my driving conditions without having to air up and down and OCD the hell out of my tyre setup!
My question is, what is an acceptable tyre operating temperature? Tyre pressure directly relates to temperature. Of course ambient and road surface temps play a part in this and will give different rates of changes in pressure but who can tell me what is an acceptable operating range for tyres like Cooper and BFG? I see 'hot' temps of between 35 to 45*C during different driving conditions during different times in the day when im out and about. Considering people are saying heat kills tyres it would be beneficial to know when im running too hot to prevent worse case events like de-lamination or blowouts? Should we all be conscious to not only set our pressures to suit the driving surface but to also suit a temperature range once we are out of the thick stuff and back on easy driving?
Cheers,[B]Prado 120 Series Build; [/B][U][url]http://www.pradopoint.com/showthread.php?24346-Desert-Dueler-120[/url][/U]
[B]Customline Off Road Deluxe CT Build; [/B][U][url]http://www.myswag.org/index.php?topic=38826.0[/url][/U]
[B]WS Tarpon 120 Kayak Build; [/B][U][url]http://www.kfdu.com.au/forum/viewtopic.php?f=12&t=40099[/url][/U]
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There is no real hard and fast rule for tyre pressures as most cars are completely different for the same size tyre , i always look at the car , how its loaded ,how they drive and then look at the tyre wear so i can work it out , some of my customers run theirs at 60psi all day every day and they wear great
7 psi is the normal maximum pressure increase for what ever pressures and loads you run at , if they increase more than that they are under inflated
Never ever deflate a hot tyre thinking that it is over inflated , tyre pressures are always checked cold , the manufacturers build in a safety margin for this increase
Heats destroys tyres in a different way to the tyre in the op's picture , that is why a lot of 'so called' warranty claims are knocked back , you can tell pretty well straight away2012 Graphite GXL T/D Auto, with all the normal crap you fit
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Originally posted by Rainman View PostAs I've always suspected, you're better off buying BFGs than Coopers. Theres never enough BFG's imported into the country to have them sitting on the shelf for 5 years.150 Silver Diesel GXL Auto with ECB Bullbar, Toyota Factory towbar, Black Widow Drawer system with Fridge slide and cargo barrier, GME UHF 3340 Radio, Waeco 50 Litre Fridge, Rhino Racks and Rhino Basket, ARB Awning, IPF XS Spotties, ABR Sidewinder Dual Battery system,Airtec Snorkel, Bilstien Shockies, King Springs, Poly Airbags and BFG A/T''s. Now towing a semi offroad Lotus Freelander 18.6 Van, with all the bells and whistles.
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Originally posted by Bear63 View PostThere is no real hard and fast rule for tyre pressures as most cars are completely different for the same size tyre , i always look at the car , how its loaded ,how they drive and then look at the tyre wear so i can work it out , some of my customers run theirs at 60psi all day every day and they wear great
7 psi is the normal maximum pressure increase for what ever pressures and loads you run at , if they increase more than that they are under inflated
Never ever deflate a hot tyre thinking that it is over inflated , tyre pressures are always checked cold , the manufacturers build in a safety margin for this increase
Heats destroys tyres in a different way to the tyre in the op's picture , that is why a lot of 'so called' warranty claims are knocked back , you can tell pretty well straight away150 Silver Diesel GXL Auto with ECB Bullbar, Toyota Factory towbar, Black Widow Drawer system with Fridge slide and cargo barrier, GME UHF 3340 Radio, Waeco 50 Litre Fridge, Rhino Racks and Rhino Basket, ARB Awning, IPF XS Spotties, ABR Sidewinder Dual Battery system,Airtec Snorkel, Bilstien Shockies, King Springs, Poly Airbags and BFG A/T''s. Now towing a semi offroad Lotus Freelander 18.6 Van, with all the bells and whistles.
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