[robopp]

Originally Posted by Max Well

Altitude isn't kind to ICE platforms. There are some equations which translate such data to sea level, and if I'm not mistaken, C&D uses something similar to post their 'Instrumented Tests'. Might be an interesting side project to take those numbers and 'equalize' to SL just to give an idea as to performance potential.

And with my last runs with a decent DA, but temps in the 40's with my PS4S having 11K treadwear, I now have a better understanding how important that component is... I'm thinking temps in the upper 50s, lower 60s with sun shining so the track can warm up - should be perfect. Only way to get that will be renting the track, though!

Anecdotal evidence, but the best run I ever had in my RS3 was with reasonable cold temps (40s) with little humidity (read amazing DAs) and DWS06 all season tires. DAs were too cold for P4Ss and a temp increase helped the P4Ss and the 60', but ultimately the car was slower over the entire 1/4 mile. I wasn't the only one with a PR and all season tires with great DAs