Learn how a turbo works and how it effects engine performance.

Here´s the definitive book on selecting, installing, and tuning turbochargers on air-cooled VW engines.

Explain basic turbocharger theory, sizing, and performance capabilities.

Also details design, operation, modification and rebuilding procedures.

Includes complete turbo fuel system design and operation.

Shows how to convert carburettors for turbo use.

Plus, a full listing of carburettor jetting.