Question about cars at altitude

Page 2 - Seeking answers? Join the AnandTech community: where nearly half-a-million members share solutions and discuss the latest tech.

91TTZ

Lifer
Jan 31, 2005
14,374
1
0
Originally posted by: mercanucaribe
Originally posted by: Heisenberg
Originally posted by: Whoozyerdaddy
Originally posted by: Heisenberg
Higher altitude = lower pressure = less oxygen per unit volume to combust.

That's what I figured but pleanty of other cars seem to make it up to the top. (10,023') Wasn't sure why mine would crap out.
I dunno. You could have a slight problem in something like an O2 sensor that's not an issue at lower elevations, but keeps the PCM from getting the air/fuel mixture right as you go higher.

Edit: Oh the thing is supercharged? That's really odd - a supercharger helps a lot with power loss at altitude.

I don't think a supercharger helps. It just sucks in proportionally less air I'd think, while a turbo would spin faster in thinner air.

It's not the thinner air that makes the turbo spin faster. It's the wastegate making it work harder.