Historically, increasing a 12-valve 5.9L Cummins engine’s performance with only a Bosch P7100 high-pressure injection pump (P-pump) required modifying the pump’s air-fuel control and adjusting its ...

For many hot rodders the very thought of electronic fuel injection brings with it visions of a wiring harness the size of your forearm, computers, and all kinds of adapters to make it compatible with ...

The term "timed fire" is normally applied to a specific segment of a competitive shooting match, but in this case it can also be used to accurately describe the timed fuel injection system developed ...

The black ’15 Chevrolet Silverado 2500HD work truck we encountered at Dunks Performance in Springfield, Oregon, is the typical calling card of a successful turf business. It is used every workday to ...

Picture an old windup desk clock. Now cross it with a gasoline engine, adding a tiny crankshaft and pistons. Tack on a few Buck Rogers bits, so it looks like Rube Goldberg's toaster. Flow gasoline ...

Anyone who has gone to school to learn how to repair engines of all types, such as myself, will have learned the fundamentals of how they work. It's crucial for troubleshooting and diagnosing engine ...