Hi all,

I've just started to use slicks tires for my track days. I'm doing some info research on slicks pressure and I'm geting some confusing information. The people tens to give the pressure of other light cars. Is my understanding that is not the same a 1300 kg cabrio than a 1000 kg Lotus Exige, for the tires I mean

Anyone knows the cold and/ore hot pressure of this kind of tires ?

Sorry I can't help, I haven't seen that tire model over here. Our track tires for light cars are usually Kumho, Hoosier, Falken or Toyo.

I don't know if the name of the tire changes in other countries, but I'm sure Michelin is selling their competition slick tires all over the world.

The tire belongs to the asfat circuitr range and is the hardest compound: Michelin Sport - Gamme circuit (http://www.michelinsport.com/sport/front/templates/affich.jsp?codeRubrique=597&lang=FR)

BTW way, all the tires you mention you usualy use are a road legal slick or competirtion ?

The Michelin competition tires we get are the Pilot Sport series. Looking at their sport website it appears that the S9B is only sold in Europe and surrounding areas. The Pilot Sports are expensive and are road legal. The other brands are mostly road legal but not really practical for much street use. The Hoosiers are track only. For dual use the Falkens have been the best.

OK then, do u know the cold and hot pressure of any other only track tire, I understand that probably will be very similar

Generally we start with 3-4 pounds added to our cold street setting for the track. We monitor the tire temps with a little handheld digital gauge when the car comes in. We also use a garden water sprayer to cool down the tires between sessions. Of course our track temps in Calif., Nevada and Arizona are very high most of the year.

OK then, do u know the cold and hot pressure of any other only track tire, I understand that probably will be very similar

Hi,

A good starting point for serious circuit racing would be 32psi hot, which on my car means starting around 23-24F and 26R. It will be squirmy and slippery for a couple of laps, but once stabilised it will be very predictable ;)

Cheers

Robbo

Thanks a lot, I'll tell you