PDR Camshaft Kits

The PDR camshaft upgrade is primarily designed for towing and daily driving. This cam will also work for trucks that see occasional drag racing and sled pulling. For trucks that are used for serious drag racing and sled pulling, a more aggressive high lift cam with fly-cut pistons is typically used.

The PDR cam is reground from a stock core. It features higher lift, longer duration, and better lobe separation. These improvements have shown a 30%

increase in air flow during flow testing on the bench. Best of all the design is mild enough to not require fly-cut pistons or other modifications.

Typical improvements reported by many who have installed this cam upgrade are:

• Longer HP & torque curve
• 1-2 MPG increase in fuel economy
• 100* drop in EGT's
• Reduced turbo lag, faster turbo spoolup
• Improved throttle response
• Approximately 20% reduction in smoke

PDR has 3 camshaft designs, one for each model of Cummins Turbo Diesel. The 89-93 12V Cummins, 94-98 12V Cummins, and the 98-02 24V Cummins diesels. Each cam has been individually tested and optimized for each engine.

Each kit includes a PDR camshaft and reground lifters, on an exchange basis only. A PDR camshaft can be installed in house or customer installed. Installing a new camshaft is an 10-12 hour job and should be done by a professional mechanic. An experienced do-it-yourself-er with good mechanical skills and tools can complete the install. Some special tools are required for removing the lifters.

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