NOJIMMY
New member
I sent the following information to Jeff (the tech inspector) at Bandimere (CO): 
Answer:
There are no rules that compensate for the corrected altitude. In classes in Stock, Super Stock, and Competition Eliminator, where vehicles run on a specific index, indexes are factored for the altitude. Classes with superchargers/turbochargers are have a smaller multiplier to adjust for altitude. Here, we typically multiply ET by .9405 to see a comparable time at sea level, and by 1.0563 to figure a sea level number for mph. These factors are cut in half for turbo/supercharged cars.
In E.T. or heads-up racing, there is no factor ever considered. This is more of a personal interest factor. We actually established NHRA national records at our track in the NHRA Sport Compact Series in 2005. Altitude was corrected to around 8,500 feet, however the quality of the track, and the fact these cars make their own air, allowed us to set 5 records that weekend.
- Jeff
Answer:
There are no rules that compensate for the corrected altitude. In classes in Stock, Super Stock, and Competition Eliminator, where vehicles run on a specific index, indexes are factored for the altitude. Classes with superchargers/turbochargers are have a smaller multiplier to adjust for altitude. Here, we typically multiply ET by .9405 to see a comparable time at sea level, and by 1.0563 to figure a sea level number for mph. These factors are cut in half for turbo/supercharged cars.
In E.T. or heads-up racing, there is no factor ever considered. This is more of a personal interest factor. We actually established NHRA national records at our track in the NHRA Sport Compact Series in 2005. Altitude was corrected to around 8,500 feet, however the quality of the track, and the fact these cars make their own air, allowed us to set 5 records that weekend.
- Jeff
