Bill D
Diamond
- Joined
- Apr 1, 2004
- Location
- Modesto, CA USA
Off Topic: I drove over Carson pass to Nevada the other day. About 8,000 feet reduced my normally aspirated engine by about 24% less horsepower using 3% loss per 1,000 foot altitude increase. The Teslas whip by at full power since batteries are not affected by altitude.
So does a turbocharged car also lose horsepower with altitude? Seems like they would if they limit boost pressure to say 10 PSI Gauge pressure. Or do they do some fancy measurement and limit it to a absolute boost pressure regardless of altitude? In my limited experience all the pressure sensors and guages I have seen give relative pressure and assume STP conditions outside the gauge.
Bill D.
You do not want to be behind a non west coast truck in the mountains or even the hills here since they use much smaller engines.
So does a turbocharged car also lose horsepower with altitude? Seems like they would if they limit boost pressure to say 10 PSI Gauge pressure. Or do they do some fancy measurement and limit it to a absolute boost pressure regardless of altitude? In my limited experience all the pressure sensors and guages I have seen give relative pressure and assume STP conditions outside the gauge.
Bill D.
You do not want to be behind a non west coast truck in the mountains or even the hills here since they use much smaller engines.