How do you figure out what a run will be with the elevation at sea level? Is there an equation or calculator somewhere?

 

yes, the equation is a horsepower Equation, For every 1000 feet you rise above sea level you lose 3 percent of your horsepower that you made at sea level. This is for N/A powered vehicles! At about 4,000 feet about sea level you can subtract about 1.5-.7 sec if your running at sea level after running at elevation of 4,500 feet, and vis versa!