which equals less power to spool the turbos. There is a local track in So. Cal. that is good for practice but lousy for good times in the 1/4 mile. It is around 3000' and a typical turbo car loses about .4-.5 of a second in performance. I've seen auto turbo cars that can't even build boost at the line. And as soon as they go back down to a lower elevation, respond like a different car. Guys at the track talk about "good" air. That is low altitude, cold temperature, high pressure, and low humidity.....all of which equates to a "denser charge", meaning more oxygen into the engine. Take care, Mark
