Ok - I wonder why? Perhaps it ballooned the tyre so the middle of the tread was touching the road more that the edges
My old track car gripped well on 195/55/15 tyres at 25 cold (30 hot). At 30 cold it slid more.
Your tyres hold a lot of air for a lightweight car so I reckon 25 cold is plenty. My 370Z runs at 35 cold but the tyres are low profile and the car a lot heavier that an S30.
Others might disagree.
Different cars
Different weight splits
Different tyres sizes
Different tyre types !!!!!!!
.....
Rob said:What do you use in your front tyres, that might be a more helpful reply for Lee. If you are going to say that that's of no use to Lee whatsoever then fair enough but he's got to start somewhere.