Altitude Adjustment
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Our closest track is Los Angeles County Raceway, which is located in the high desert near Palmdale, California. The track sits at 3,000 feet above sea level, and on hot summer days it’s not unusual for the density altitude to reach 6,000 feet. The NHRA correction factor we use to return e.t. and speed numbers to sea level only compensates for 3,000 feet of altitude, not weather. On a typical summer day, 6,000-foot density altitude is roughly equivalent to losing an additional 0.30 second or more depending upon the car. This means the total difference in e.t. could be as much as 0.7 to 0.8 second compared to sea level. View Related Article
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