Altitude corrections for diesel engines
Essentially, the higher one goes the thinner is the air. If you go high enough a carbureted engine stops working, that's at about 4000 meters or 12,000 feet. Any higher than that you'll need fuel injection. Try climbing a hill at that altitude, and most of us will be puffing and panting after 50 meters or so.
So too diesel engines lose power with altitude.
Detroit NA 2-Stroke engines:
- 2.5% Reduction in power per 1000 ft
- 0.8% Reduction in power per 100 m
- 3% loss in power per 1000 ft
- 1% loss in power per 100 m
- 1.5% loss in power per 1000 ft
- 0.5% loss in power per 100 m