Turbochargers

Power & Torque Comparisons

The power and torque increase delivered by fitting a 4WD Systems turbocharger kit to a diesel 4WD vehicle is often misunderstood and undervalued. The following is a quick comparison of well known standard engines to turbocharged diesel vehicles.

Note that for many turbocharged diesel engines the maximum torque is realised at significantly lower RPM than larger capacity petrol engines (compare the 1HZ turbo vs 4.5Li petrol). As the torque occurs at substantially lower RPM it is more usable - you don't have to high rev the engine to get performance. Hence the vehicle has substantially improved towing ability, easier safer passing and a vehicle less effected by long hills and strong head winds. As a 'rule of thumb' once the turbocharger is fitted the vehicle will be a 'gear and a half' to '2 gears' better off up hills.

• 1HZ/TD42 turbocharged have very similar torque to the Ford & Holden petrol V8's (at substantially lower RPM)
• 1HZ/TD42 turbocharged have very similar torque and power to the Chev 6.5Li V8 diesel
• Cost of conversion to 6.5Li Chev can be triple that of a 4WD Systems turbocharger installation
• Many of the smaller 4 cylinder diesels, when turbocharged, have comparable figures to the Holden 4.2Li V8
• 4WD Systems Intercooler increases torque approximately 17% above traditional turbo installation

Figures provided for comparison purposes only from 'Australian 4WD Monthly' magazine.

Turbochargers

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Turbocharger Kits to suit 4WD Diesels