Street Tire Prep??

[DirtRacer#1]

We have to run street tires in our STK4 class and I was wondering if there was a home made mix that you could use to make the car hook up better and maybe just get a little advantage on them without buying high dollar stuff???

[84Dave]

Racing on dirt or pavement?

[DirtRacer#1]

dirt
i know that goodyear and hooiser there are different lap speed so i was wondering if i could do something to my street tire to do the same