More cars have turbos fitted as standard and we will look at the best ways of tuning them. Ther are phenominal power gains available to turbo charged cars with engines of all sizes.

For a more comprehensive look at car tuning see our sister site www.torquecars.com

Turbo Design

The angle of the turbines, the gearing and size of the fins as well as the dwell angle has a major impact on the effect and efficiency of the turbo. Peugeot have experimented with variable turbine geometry and other manufacturers have employed similar tricks to maximise the power gains and keep with fuel economy requirements. They tend to work conservatively and focus too much on reliability and economy so we have plenty of scope for improvement.

There a 4 main areas or parts to a turbo: The turbine and impeller wheels are each contained within their own folded conical housing on opposite sides of the third component, the center hub rotating assembly and the housing.

Some designs eliminate lag and dual turbos and even triple turbos are becomming standard production methods.