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well if it does that, why is it that when people run drag races at altitude, they are always lower and in some cases have to add time and mph in order to adjust for the less dense air?
Thats what I'm saying, I think the computer can adjust for it but theres only so much it can do. The fact remains, its getting less oxygen, less oxygen=weaker combustion.
It is true that once you get to a certain point there is no more adjustment. But this is only true for speed density systems with MAP/Baro sensors like ours. If you are mass air or carb'd of course its not the same.
i'll bet that a bigger TB, or at least a ported/polished one could make up for the loss that the computer cant account for
that might help but i dont think it would completely fix it. the air itself has less oxygen in it, the heads can only take in so much air to be combusted and if that has less oxygen its going to be a weaker explosion. On the other hand if you had a carbeurated engine and drove it from sea level all the way up to denver it would probably end up running crappy when you got up higher, but you could adjust the carb to fix the running crappy element. However, the engine would still not make as much power as it could at sea level.
The question still is if you would feel the difference. I know I can't feel the difference between a 8.60 1/8 mile pass and a 8.9 pass myself and 0.3 is a pretty big difference.