When Ford’s Special Vehicle Team unleashed the 2003 Mustang Cobra on the world, a new standard in bolt-on friendly performance was born. Adding simple mods like a high-flow intake, a smaller blower pulley, a cat-back exhaust and custom tuning, resulted in impressive gains. However, enthusiasts soon wanted more; and you can only make the blower pulleys so small before efficiency is out the window.
When you reach the point that the stock M112 roots blower is producing super-heated air from operating outside its comfort zone, it’s time to look at a supercharger upgrade, which is why VMP Performance created the Gen2R TVS supercharger built specifically for the 2003-2004 snakes.
The TVS handles heat much better than the factory unit, while pushing more horsepower. — Andrew Sheridan,Terminator Owner
As an employee of VMP Performance with a stock-blower Terminator, you can imagine that Andrew Sheridan has been chomping at the bit to install one of these units on his own car — and that time had finally arrived. He upgraded to the Gen2R TVS optioned with the GT500 throttle body package.
2003 Cobra Mods
• 56 lb/hr fuel injectors
• BBK high-flow X-pipe
• C&L Performance cold air intake
• Continental 265/35-18 tires (front)
• Diode Dynamics 6K HID headlights and 6K LED foglights
• H&R race lowering springs
• Magnaflow cat-back w/ Magnapack mufflers
• MGW Race short-throw shifter with VMP/MGW Knob
• N2MB WOT Box
• SVE Series 2 wheels, 18×9 (front) and 18×10 (rear)
• Toyo Proxes R888 315/30-18 tires (rear)
• VMP 3000 mass airflow meter
• VMP fuel pump booster
• VMP custom dyno dune
• VMP TVS 2.3-liter supercharger w/ GT500 throttle body package
Aside from the hardware needed to support the increased horsepower, you may also want to consider some driveline upgrades. For the moment, however, Andrew is staying with his existing combo.
“Typically a clutch and 26-spline input shaft would be a good idea on this setup,” Andrew explained. “In my case we kept the stock clutch and input shaft and so far we have not had any issues with slipping, but I will definitely be upgrading in the future. Some IRS upgrades are a good idea for quarter-mile drag duty, which may include bushing upgrades and halfshaft upgrades, as well as a proper drag setup for the car.”
Additionally, upgrading the blower and adding the necessary supporting gear made for a great comparison of the gains available to bolt-on Terminator from a TVS supercharger upgrade.
Packing More Power
“The gains over stock are enormous,” Andrew enthused. “In my case my car made 601 horsepower and 560 lb-ft of torque at the rear wheels on the Dynojet. The car previously made 477 horsepower and 506 lb-ft of torque at the rear wheels with a 2.76 pulley, Accufab Racing throttle body, and a VMP tune. This is a very significant gain, and it’s definitely something you can feel. One of the most notable differences is the fact that the TVS does not get nearly as hot as the factory Eaton unit.”
More power and less heat is just what you want from an upgrade like this. The numbers are one thing, but the feel of driving the car after such a huge performance increase is what puts a smile on Andrew’s face.
“I absolutely love it,” he added. “The torque hits very hard down low and the horsepower pulls the car through the gears. It is an absolute blast on the street, and we will soon be going to the track with it as well.”
With the previous combo, Andrew’s Terminator ran an 11.48 at 121 mph, so he fully expects to dip into the 10-second zone with the Gen2R underhood.
If you want to learn more about the VMP TVS packages for the 2003-2004 Cobra, you can visit the company’s official site here.