Trackday tyre pressures

[anonymous-user]

Hi guys,

At Rockingham last year another aston owner kindly monitored and lowered my tyre pressures during the day after each early session to get them right but I cant remember what they were set to.

Doing Snetterton on Sunday with the db9. Pirellis. Forecast is to be dry and warm.

What pressures do you recommend running on hot tyres?

Thanks in advance.

[anonymous-user]

It can be quite dependant upon the brand of tyre, but a good starting point would be 2-4psi less than the AM recommendation (cold), and see how it fares when up to temperature. The front to rear difference would still apply i.e. fronts 2psi lower than rears. I'd take a decent tyre pressure gauge with you, as the on board TPMS can be quite wide of the mark on occasions.

[roughrider]

Make sure they don't get above 40psi when HOT. You will probably find they will then drop to around 30psi when they've cooled down to ambient temperature, but after a couple of warm-up laps they will come back up to high 30's psi.

[anonymous-user]

Thanks guys. Exactly what I wanted to check.

I have a decent analogue tpm so will start by dropping to 30f 32r and keep monitoring them during the day.