Packing More ProCharger Performance Part 2 - ProCharger D-1SC Supercharger

HP's Tony Gonyon used an SCT Eliminator chip to teach our EEC-IV processor a few new tricks. The factory A9L ECM needed the chip port opened up a bit so the new chip would fit in the case. The SCT chip has the capacity and ability to hold up to five different tunes, which are accessed through an optional switch cable.

This was our first trip to the HP Performance dynamometer with our ProCharged Stang, so we needed to get a good baseline with the P-1SC head unit. Gonyon started with a base A9L 5-liter file and modified the MAF transfer function table for the SCT meter. He also made changes to accommodate the 60-lb-hr injectors and the 331ci displacement of the D.S.S. engine. Numerous dyno pulls were then made to creep up on the spark and fuel tables to achieve a healthy baseline of 503 hp and 498 lb-ft of torque at the wheels.

The self-contained design of the ProCharger made switching head units simple. We swapped the P-1s 4-inch, eight-rib pulley to the D-1SC.

Here you can see the P-1SC's straight impeller blades, which are designed to produce a linear boost curve in the standard kit.

ProCharger has its own zero-weight oil for its self-contained head units. The blowers are shipped dry, so be sure to fill it with one of the 6-ounce bottles of oil. The D-1Sc alone increased boost from 12 psi to 15 psi, and power improved from 503 to 556. Torque was also on the rise going from 498 to 535 lb-ft.

While obviously exploring the limit of our stock-block D.S.S. 331ci stroker, we decided to try out Anderson Ford Motorsport's Power Pipe. The high-flow air filter and contoured 4-inch pipe replaces the ProCharger flexible tubing and air filter.

We spent about an hour installing the Power Pipe. After removing the inner fender liner, we opened the hole in the fender a bit with an air-powered jigsaw. On the dyno, we saw another 2 psi of boost, which generated 583 hp and 555 lb-ft of torque to the wheels.

One of the tools HP's Tony Gonyon employs while tuning the A9L computer is the SnEEC-IV, made by Race Systems. The SnEEC is a real-time datalogger for the EEC-IV computer and allows Gonyon to view myriad engine functions throughout the dyno pull to aid in further tuning changes.

The D-1SC and AFM Power Pipe delivered solid gains, bumping wheel horsepower from 503 to 583 and torque from 498 to 555. We also like how both power and torque improved across the powerband, as this will translate into more usable street power.