CADfix boosts productivity for Holset The turbocharger surely falls into the ‘Why didn’t I think of that?’ category of inventions. Its principle – using the pressure of engine exhaust fumes to boost performance by driving more oxygen into the cylinders – makes so much sense that you begin to wonder why they aren’t fitted to all engines. In fact, in one class of engines, they are. Diesel engines – those for heavy duty trucks and machinery at an

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