[Martin Smith]

OK guys, today with two ticks of final gear ratio and pushing to drive more aggressively, I clocked 04.7 with medium tires and 03.8 with slicks. I thought it was not possible to be more aggressive because of the driving on ice feeling I was talking about, but evidently it was. Coming from low 06s, that's more or less where I wanted to get, so I should thank all of you and shut up. Now I suppose I have to put in yet more time trying to be consistent at this level.

*** Any suggestions about best PSI very welcome! ***

Two final considerations:

1) in my experience, 80% of the time catching a slide remains a dream. When the car goes, it goes. With this car, I don't feel much power oversteering on exit - the spinning typically happens during quick lateral mass transfers (mid of chicane) and understeering on entry.

2) again and again, the idea that there are another three or even four seconds to gain is simply unfathomable.

Cheers and see you on track.

When I'm jumping into a car for the first time I'll set the cold PSI first, going high teens to low 20s for racing radials, low to mid 20s for street radials, and high 20s to 30s for bias ply on the classics. It gets me in the ballpark most of the time.

The couple of times I tested tires for optimal PSI it game me a mild curve with a range of PSI (hot) that worked well. I could go lower PSI for, say, more tire temps or higher for more responsiveness without sacrificing anything meaningful in terms of grip. So for fun races I just set in in the range and go. If I want to be more competitive I'll spend some time working with a range of PSI and maybe test on the skidpad.