What caused this?

Author
Discussion

a7x88

Original Poster:

780 posts

155 months

Wednesday 9th March 2022
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Being fairly new to track days I just wanted some opinions on what may have been the cause for the state of my tyres in this pic….

For context, the car is a MK5 Golf Edition 30 with approximately 385bhp. It was a full day at Bedford.

I rotated my tyres after a drive limits day in order to wear these down and try to keep it even. These tyres are Goodyear Eagle F1 Assymetric 3’s. Rears were PS4’s

There is approximately 5mm tread depth left currently and tyre pressures were a few PSI over road pressures when hot.

Is this caused by underinflation, over heating the tyres, then just being old and rubbish?

The rear Michelins are fine and we’re kept at the same pressure as the fronts. They are already considerably more worn though with only 3mm or so on now. Appreciate they have a much easier time than the front tyres.

Any thoughts


TO73074E

465 posts

34 months

Wednesday 9th March 2022
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Is it the same on both front tyres? Were you taking quite a lot of kerb in the bends?

Rowe

348 posts

129 months

Wednesday 9th March 2022
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over driving/over heating/incorrect tyre compound/lack of camber

Pretty normal for a road tyre to end up like that after track use really.

Unfortunately, there's no real way round it other than slowing down or getting a more suitable tyre and geometry suited to track.

a7x88

Original Poster:

780 posts

155 months

Wednesday 9th March 2022
quotequote all
Left hand side has some but not as prominent.

Bedford being an anti clockwise track it makes sense for the right hand side to suffer more

If it’s expected I can make my peace with it. Just seemed silly to kill a tyre if there was something obvious I could do about it.

HustleRussell

25,205 posts

167 months

Wednesday 9th March 2022
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It’s a heavy road car with road car geometry and road car tyres. It’s just not engineered or set up for track use.

You could improve it by fitting more suitable tyres, increasing negative camber, managing your tyre pressures better and a bit of driving style, but a 1,400kg car putting 385bhp through its front tyres is always going to eat front tyres.

E-bmw

9,976 posts

159 months

Wednesday 9th March 2022
quotequote all
HustleRussell said:
It’s a heavy road car with road car geometry and road car tyres. It’s just not engineered or set up for track use.

You could improve it by fitting more suitable tyres, increasing negative camber, managing your tyre pressures better and a bit of driving style, but a 1,400kg car putting 385bhp through its front tyres is always going to eat front tyres.
^^^^ Wot 'e said.

nickfrog

21,945 posts

224 months

Thursday 10th March 2022
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It's not too bad actually. I have done worse, even at the front of a RWD car.

Try and get around 2 degrees of front neg camber and use AD08Rs or NS2rs.