The engine coolant should be drained at the petcock on the bottom of the radiator. Remove
The Results Are In
The test vehicle already had a few basic performance modifications in place. The 4.6L Three-Valve engine had a high-performance exhaust system consisting of Hedman shorty headers, an off-road H-pipe, and axle-back exhaust system. The car also has a set of MSD ignition coils. Thusly equipped, the car produced 293 rwhp and 311 lb-ft of torque. When the Edelbrock supercharger was added, the numbers grew to 437 rwhp and 404 lb-ft of torque. Those figures represent an improvement of 144 horsepower and 93 lb-ft of torque.
| RPM || HP ||TQ |
|2,000 ||125 ||321 |
|2,500 ||172 ||356 |
|3,000 ||217 ||379 |
|3,500 ||265 ||395 |
|4,000 ||305 ||400 |
|4,500 ||345 ||404 |
|5,000 ||381 ||401 |
|5,500 ||418 ||389 |
|6,000 ||426 ||369 |
|6,500 ||437 ||350 |
Edelbrock rates the kit at 6 pounds of boost. However the boost was found to increase slightly as rpm levels grew. The boost log from the dynamometer pulls revealed the following figures.
The next area to address is the serpentine front accessory drive. The OE tensioner will be
|BOOST LOG |
|RPM ||BOOST |
|4,000 ||5.733 lbs |
|4,500 ||5.701 lbs |
| 5,000 ||5.798 lbs |
|5,500 ||6.342 lbs |
| 6,000 ||7.272 lbs |
With the completely finished appearance and a consistent and reliable 144 extra horses on tap, it's easy to understand why the interest level in the E-Force blower is so high.
More Power To Be Had
If you're like us and you can never have too much power, don't worry, the E-Force blower is ready to handle more. Besides the aforementioned Competition Kit (we installed the street system here), there's the Competition Air Intake, which is an open element-style cold air system with integral mass air meter. Several pulley diameters are also available to increase boost levels and tune the blower to your specific needs, including 3.50-, 3.25-, 3.00-, and 2.75-inch blower pulleys. A set of 60 lb-hr injectors (41 lb-hr come with the street E-Force) are also available and support up to 800 hp, perfect for the Competition Supercharger kit.
Remove the four bolts retaining the alternator support bracket and remove the bracket from
Disconnect the hoses at the water crossover, catching any spillage into the engine with sh
This view of the engine bay shows things broken down almost as far as we're going to go. A
These hard cooling lines are held in place by a clip at the firewall and also at the engin
Use a flat-blade screwdriver to raise the six push-lock pins that retain the radiator shro
Begin the removal of the front fascia by undoing the various fasteners attaching it to the