Tyre tread temeperature

[tapkaJohnD]

I'm racing on Yokohama A048s, that have a minimal tread pattern, in 'Medium' compound.
I measure the tread temperature with an infra-red 'gun'. (I know that the ideal is a needle pyrometer, but they are twenty times the price!)
In dry weather and the hot recent weather, I see the tread up to 60C

Talking to someone who has used slicks, they say that the tread should be around 100C.
Are slicks that different from tyres with any tread pattern?
Or is this due to different measurement methods?

Should I try to get my Yokos that hot?

JOhn

[knowitall]

Ideally treaded should be 80-90c with a max variation of 10% between them.

[Kraken]

If you're only getting 60 degrees in the weather we've been having you're either driving very slowly or your thermometer is crap.

http://www.adamsandpage.co.uk/tyres/racing-tyres/y...

[HustleRussell]

Or your tyres are cooling significantly on the in-lap / in the pitlane

This is why I've never got as far as bothering with a pyrometer as you need an assistant to do all of that and get any value out of it

[andrewcliffe]

I would suggest talking to Yokohama UK's competition technical department, and explain what you are racing, what tyres you are using, your current cold pressure settings and maybe they could advise further.

Tyre companies are pretty helpful once you have a question and back up data to hand.

Pressures and surface temperatures have to be measured very quickly following a hot inlap.

[Kraken]

The link I provided gives all the info you need for those tyres.

As has been said temps only really work if you come straight in and measure immediately.

[anonymous-user]

I've had my track car set up by at the track by two different tyre companies, Club racing car, neither were interested in absolute temp, they looked for the temp at three points on the tyre to be the same (or similar) and for the temp across all 4 wheels to be the same, As we didn't have control parameters for track temp etc, don't see much use in absolute values in degree C.