Tyre temps?

[AndreasR]

Back to practicalities. Who here ever overheated their tyres?

[LesseW]

I had my tyre temps go high sixties, questions is what is a safe temperature limit

[AndreasR]

Mr Google reckons you can go up to 90C. At 120C you will statrt losing tyre life and run the risk of delamination and destruction.

[AndreasR]

It seems that one should set your TPMS at about 70-75C. Also bear in mind that hotter tyres wear quicker. It’s simple really. The correct pressure for your load will prevent heat build up and you will get the best mileage from your tyres.

[Ricof4e]

It seems that one should set your TPMS at about 70-75C. Also bear in mind that hotter tyres wear quicker. It’s simple really. The correct pressure for your load will prevent heat build up and you will get the best mileage from your tyres.

BE GONE SATAN!

[Shane]

It seems that one should set your TPMS at about 70-75C. Also bear in mind that hotter tyres wear quicker. It’s simple really. The correct pressure for your load will prevent heat build up and you will get the best mileage from your tyres.

Well then, what is the correct pressure for your load?

Can one determine that based on tyre temps?

It would make life much easier.

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[AndreasR]

I was taught at University that pressure for your load depends largely on the depth of your thrust!

[LesseW]

[Shane]

I was taught at University that pressure for your load depends largely on the depth of your thrust!

So I should be expecting higher pressures?

[LesseW]

Ricoffee is building this thing up intentionally, he’s going to give us the “back in Nam” lesson on Tyre pressures. Brace yourselves.

[LesseW]

Boyle lived before the invention of the pneumatic tyre, however his law that states that the temperature of the air in the tyre will increase with increased pressure is totally irrelevant to this discussion.
What is relevant is that the tyre pressure will increase as the tyre heats up. But we know this and I mentioned it in my post...
Stick to Legal Law Chicory...

You may not see this, but I am swinging my gavel at you with murderous intent.

Consider Boyle's law again.

I think Ideal gas law is better for this, PV=nRT. Portugal/Mozambique’s school system needs to be uplifted


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[Ricof4e]

Ricoffee is building this thing up intentionally, he’s going to give us the “back in Nam” lesson on Tyre pressures. Brace yourselves.


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Brace now.

The ideal gas law would not be applicable, but rather the combined gas law. Boyle's law speaks of the inverse relationship between pressure and volume at a constant temperature. If the temperature varies, then the combined gas law comes into play.

And no Manny, combined gas law does not mean two or three okes farting simultaneously.

[BushWacker]

Listening here,
you guys seem to run on a lot more hot air than I do
... and I was just thinking there may be more to it
than your application and achievement in formative years.
I run on 235/85/16s yet Im aware many of you run
more radial at lower pressures at higher speeds... (!)
Guess it boils down to where the tackies hit the tar ?

[KurtG]

My input:

1) Open the driver’s door
2) find the sticker
3) read the sticker
4) adhere to the sticker’s recommended pressures.
5) drive.

This thread is pointless

[Shane]

Well Kurt is it really?

My vehicle comes out with 18 inch rims and lower profile tyres.

I changed that to 17 inch rims snd BF's.

So both size and brand are different to factory spec. This should surely make a difference?

Added to that - the sticker gives you two options - laden/unladen.

So is a canopy considered laden? Or 500kg on the back?

What about inbetween?

The thread started as I was just interested in finding out about tyre temperatures - something I'd never measured before.

Interesting enough my rear tyres were pumped to 3 bar. They climbed to 3.5 bar and reached 50 degrees - on a COLD day.

So what would they have reached on a hot day of 35 degrees? Would it then be better to inflate them to 3.5 bar?

I'm intrigued. That's all.

Considering the shite going on in this country it makes for a light distraction.

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