
The upper torque box gives us the ability to get the upper bar angle right. With the radial 275 that Evil uses, we want a higher degree of anti-squat to plant the tire early in the run. Keep in mind that these factors will all be determined by the individual combination, including horsepower, launch, transmission, and more. All of this comes together to determine how Project Evil is going to react when launched. This level of adjustability will allow Project Evil to have its instant center properly set up (this is height and length) and will also allow for the ideal percentage of anti-squat.


125-inch adjustability between each hole, the bottom torque box is equipped with four holes for adjustment. They also weigh less than stock torque boxes, providing weight reduction.įour-link geometry is of utmost importance in drag cars, and these torque boxes are super helpful in establishing the correct geometry. These torque boxes provide significant strength in a pressurized area that is affected by hard launches and twisting. “When we set out to build an upper torque box replacement, we wanted to build something with more adjustment than anything else on the market,” Team Z owner Dave Zimmerman told us. They were designed and are made in-house at Team Z headquarters in Michigan. 125-inches are maintainable with this kit, and all grade 8 hardware is included. They are tied into the frame for extra support, and feature a lightweight and high-strength design from 4130 chromoly and mild steel, and offer easy instant center adjustment and ease of location and installation. According to Team Z, this kit can lower 60-foot times, improve traction, and offers more adjustment than any other torque boxes on the market. Team Z’s upper torque box reinforcement kits are designed for 1979-2004 Mustangs, and allow for easy adjustability in respect to suspension geometry not offered when stock. Team Z's Upper Torque Box Kit is available with or without the antiroll bar. It’s possible that they are already damaged from years of abuse on the street or the strip. If you’re looking to make any amount of power, you should strongly consider replacing your torque boxes. Seeing as the Project Evil Mustang is set to make about 2,200 horsepower, the installation of new upper torque boxes was a vital step in the build, in an effort to make sure the chassis can handle this ridiculous level of power. In addition, stock torque boxes give you limited ability to create the suspension geometry that you want when lowering the car to optimize ride height. They’re the result of hard launches, and can easily turn a Fox into scrap metal. If you’ve ever owned a high-powered drag car, you know that stock torque boxes are grenades waiting to explode. Along with the physical changes, the Fox’s name was changed to simply “Project Evil.” You can read more about the car’s journey here, but today, we’re bringing you a portion of the build that most, if not all, Fox-bodies built for drag racing undergo at some point. The team behind the beast decided that they wanted the flexibility to race in more circles, so they decided to revamp the Fox into an X275 car. Our team has steadily been working on what was previously known as the “Evil 8.5” project car – a Fox-body Mustang that previously competed in the Outlaw 8.5 drag racing class.
