Yet another good AutoSpeed article:
Turbo'd for Fuel Economy - The way of the near future
A good overview of the issues around turbocharging.
The writer compares two 2.0 VW motors, one normally aspirated, the other turbo, and concludes:
Quote:
|
In the comparison shown above of the two 2-litre engines, the turbo engine has better fuel economy, better CO2 emissions, 50 per cent more bottom-end power and 34 per cent more top-end power.
|
Of course, to gain the most from the lower end torque, you really need better gearing.