The DPCHIP functions on the premise that more pressure equals more fuel, which equals more power. By running progressively higher pressures as the throttle is opened, there’s more fuel introduced into the cylinder when the injectors open than there otherwise would be. The DPCHIP operates by altering the pressure of the fuel that’s stored in the rail. It’s commonly less than half an hour to complete the job and you’re quite literally plugging in power. This unit simply plugs into the injector rail pressure sensor and can be mounted almost anywhere in the engine bay.
Take the Aussie-developed Diesel Performance Chip for example. Factors such as fuel quality and different emissions regulations over different countries, as well as others, all play a role in determining the ‘one size fits all’ approach to factory injection mapping.While we can understand why 4WD makers run these generally conservative tunes, it doesn’t mean that we have to accept them! Luckily, when it comes to diesel performance, we have some pretty smart cookies here in Australia and we’re fortunate to have one of the best supported aftermarkets for CRD injection in the world. There are a bunch of reasons that manufacturers run their standard timing, pressure and fuel delivery at a conservative level.
The fuel maps are essentially what determine the engine’s power output and fuel usage. CRD systems are overseen by a host of sensors, all running back to the ECU. They produce more torque per cubic inch, they’re cleaner burning, and they burn a much higher percentage of their fuel charge than an old-tech mechanically injected engine.One area where they often fall short, however, is with their fuel maps. There’s absolutely no doubt that the higher pressures these systems operate at give a great many advantages to the 4WDer. IF YOU CAN WORK A COUPLE OF ELECTRICAL PLUGS, THEN YOU CAN GIVE YOUR LATE-MODEL DIESEL AN EASY GAIN IN BOTH POWER AND ECONOMY.Ĭommon rail direct injection (CRD) diesels are here to stay.
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