[snellemin]

I'm old school and I use eyeballs for my setups. Too much calculating takes away from play time. I use trial and error and have fun doing it. I setup for lets say 60mph and see how the car behaves. I change gearing for a higher speed and see how the car behaves. Calculations will only bring you so far. The only calculations I do, is with the use my simple spreadsheet. And back those numbers up with my datalogger. Kinda works like BrianG calculator. You don't have a wind tunnel to play with, so why waste time calculating things you don't have hard numbers for.

70mph in a 1/8 is pretty damn fast and still affordable to me. 100mph is just stupid fast and I can't afford the upkeep of such a monster without my wife killing me.