Originally posted by chris moore
I'm running on asphalt with purple foams all around in stock.
Your car simply has too much front bite, when running foams you generally run a different compound up front. In australia we generally use gas compounds which are denoted by shore.
Most people in stock run either 42 shore on the front, 37-40 shore on the back.
I believe Purples are 40 shore, so you need ot go harder front tire. You can also try the front only compounds many companies sell, they will have less bite than the equivalent rear compound.