Track day

V

Viren

Member
I'm off to bedford autodrome next Monday and was curious what tyre pressures people are finding work on track? Usually start with 30-32 which ends up at late 30's. But heard some people run quite a bit more from cold.

Also if your there feel free to pop by and say hello, I'll be in a blue z4m.

Fyi I run 18s on standard tyres.
 
i run 33/36 hot. which normally equates to about 25/28 cold.

best thing to do would be to get a tyre pressure gauge, then come in when the tyres are warm and see what the pressures are. but on road tyres you'll know when you've overheated them as they'll lose a lot of grip and you'll start to push. similar situation if the front tyre pressures get too high.
 
I keep checking pressures and find that 30/32 when hot gives the best grip and using a IR thermometer these pressures give the best temperature gradients across the full width of the tyres. :thumbsup:
 
The correct answer is as exdos alluded to is that... there is no correct answer.
It depends on so many things, your tyres, your driving style, etc. It's all about getting the correct pressures when your tyres are hot and have been worked.
So drop the psi by say 2 at least all round before going out, do a few laps. Come back in and as quickly as possible check the pressures and adjust accordingly. Again exdos' suggested would be a good starting point. You'll find for instance that the front left will be most likely a couple of psi higher than the right, balance it all out.
Enjoy!
Eta, sorry I misread the post slightly! Generally on track I find that running lower than stock is better for me, so I aim for no more than 30 hot, and usually 28 on the front. Again though there is no right answer really, small adjustments can make a difference to the balance, it's a personal preference and depends on the spec of your car (geo).
 
Basically what has been said above.

If you have any issues on the day send me a PM, I'm local with a garage full of tools and a few spares!

Adam
 
bradz said:
Basically what has been said above.

If you have any issues on the day send me a PM, I'm local with a garage full of tools and a few spares!

Adam
Click to expand...

Thats really nice of you! Hopefully I won't need to though!
 
TomK said:
The correct answer is as exdos alluded to is that... there is no correct answer.
It depends on so many things, your tyres, your driving style, etc. It's all about getting the correct pressures when your tyres are hot and have been worked.
So drop the psi by say 2 at least all round before going out, do a few laps. Come back in and as quickly as possible check the pressures and adjust accordingly. Again exdos' suggested would be a good starting point. You'll find for instance that the front left will be most likely a couple of psi higher than the right, balance it all out.
Enjoy!
Eta, sorry I misread the post slightly! Generally on track I find that running lower than stock is better for me, so I aim for no more than 30 hot, and usually 28 on the front. Again though there is no right answer really, small adjustments can make a difference to the balance, it's a personal preference and depends on the spec of your car (geo).
Click to expand...

I’m with Exdos and Tom.

In general, I run my Zed around 30C hot front and rear, and my Westfield about 20C hot on the track.
 
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