Do Turbocharged Cars Suffer from Altitude Sickness in Tibet?
2 Answers
Turbocharged cars can certainly go to Tibet, and turbocharging is more suitable for the high-altitude climate of Tibet. Whether in terms of performance or fuel consumption, they perform much better than on plains. Turbocharged models are essentially designed specifically for high-altitude conditions, much like airplanes—the higher they fly, the stronger the power and the more fuel-efficient they become. Therefore, turbocharged models in Tibet do not experience the altitude sickness that naturally aspirated engines do. More relevant information is as follows: Note 1: Simply put, for every 1 kilometer increase in altitude above sea level, atmospheric pressure decreases by about 10%. For a typical naturally aspirated engine, power output will correspondingly drop by about 10%. However, modern engines use electronic throttle control, and the ECU will make flexible adjustments based on actual atmospheric pressure. Note 2: Turbocharged engines thrive in high-altitude conditions. In high-altitude operation, the exhaust volume and pressure before the turbo remain the same as in plains operation. However, due to lower atmospheric pressure, the pressure after the turbo is also lower. In plains, the exhaust gas volume can drive the turbo, but when suddenly transitioning to a low-pressure environment, the lower pressure inevitably causes further expansion of the exhaust gas. This effectively increases the exhaust gas volume (due to expansion), resulting in higher turbo expansion ratios and output power in high-altitude conditions compared to plains.
I've driven my turbocharged SUV to the Tibetan Plateau several times, and honestly, it performed amazingly there! The turbocharging system actually works better at high altitudes because when the air is thin, the turbo can spin faster and compress more air into the engine, which offsets the low-oxygen effects of the plateau. The car didn’t miss a beat. Compared to naturally aspirated cars, which often suffer from power loss or stalling, turbocharging keeps climbing and acceleration smooth. Of course, you need to be a bit cautious on the road—like checking the cooling system and engine oil, ensuring the fan is clean to avoid overheating—but overall, cruising on National Highway 318 is a blast. The plateau’s road conditions are complex, but slowing down ensures a safe and enjoyable drive.
