I was wondering how much running at about 3000 - 3200 feet above sea level would affect the quarter mile times in my camaro. It is a stock (except for slp loudmouth catback exhaust) 1998 LS1 with a six speed. Do you think it will still run thirteens at this height?

 

To convert 3,200-ft performance to sea level, per NHRA Stock/Super Stock correction tables, multiply:

ET X 0.9614
MPH X 1.0409

To oconvert sea level numbers to 3,200-ft, multiply:

ET X 1.04105
MPH X 0.9607

For example, a car that runs 13.8 @ 104mph at sea level, will run:

13.8 X 1.04105 = 14.35 seconds
104 X 0.9607 = 99.9 MPH

 

I lost 1.2 seconds of E.T. moving from Seattle to Albuquerque.