View Single Post
      06-23-2012, 05:02 PM   #11
Major General
Gearhead999s's Avatar

Drives: F25 2.8dF82 M4 R1200GS
Join Date: Apr 2007
Location: Toronto

iTrader: (0)

Originally Posted by 767IJP View Post
Density altitude shouldn't be much of a concern. Certainly not to the point of making your car drive " like crap".

Piston airplanes. Certainly suffer from this but we are talking about pressure altitudes in the thousands of feet.

I see you're located in Toronto so density altitude would have zero effect.
A higher temperature causes a higher density altitude which will reduce horsepower due to a lower oxygen content.

A 100f day at sea level is same as being at 2500 ft altitude.You loose about 2% power for every 1000 ft of altitude increase.Add in the other effects of higher heat on the operation(a/c compressor ,higher electric load due to fans)you will notice the difference in performance.Turbo or supercharged engines are worse for this with power loss vs heat.