[J1JPE]

Quote: Originally Posted by bob corbishley (original)

The stock speedo error is between 0 and 10% by law.

You mustn't be seen to do any lap timing or data logging at a track day. It invalidates the track day companies insurance. They will either confiscate your timing gear or just throw you out. You can analyse your data when you get home afterwards by taking logs off camcorder footage or downloading from built in loggers if you have them, but not while you're at the track.

I'd stick with stock pressures for now. You would need to measure the temps across the width of the tyre to determine how well they are performing and thats a bit full on really.

Considering you can sh@g a set of tyres in one day easily I'd buy the cheapest size there is. 195/50/15s appear good value and shorten your gearing. You'll never max out a mini at Oulton.

All I was going to do was press the start, lap & stop buttons on my wristwatch ....

Used the stopwatch on my mobile from the pitwall last time to 'assess how quickly different cars came back past me' and didnt get hassled by the organisers ... maybe just lucky

Guess I'll have to tell my mate to leave the pit board at home & stop practising his lean out signals ...

thanks for you advice on pressures