(Words and photos by Mike Galimi) – Some things just go well in double servings like two scoops of ice cream instead one or a Double-Double for those who enjoy In-N-Out Burger. But when it comes to braking systems, a double set of calipers tends to be just as good as a double helping of your favorite comfort food. Aerospace Components offers several different dual-caliper braking systems for both dragsters and door cars, which are particularly helpful in both turbocharged combinations and top-end stopping force. All Dual Rear Brake kits are specifically engineered for the double calipers with brackets and hardware; each system comes with the same high quality, Made in the U.S.A. products that Aerospace Components has become known to design and manufacturer.
Adding a Dual Rear Brake kit has several advantages, particularly in rear engine dragsters. One of the benefits of the dual rear brake system is to help slow down heavy racecars without brake fade since the braking force is split between two calipers on each side of the vehicle. That brake fade can and will come into the picture as you get later in the rounds and race officials begin to run the class in a round robin style. In both dragsters and door cars, that type of quick turnaround time doesn’t allow braking systems to cool off properly and the second set of calipers prevents the hot pad problems. In the case of a dragster, the benefits are obvious because rail cars only feature brakes on the backside. The system can take more abuse because of twice the amount of pads handling the braking.
The term building boost has been a time-honored tradition for serious turbocharged entries. The driver will stand on the brake pedal right before the pre-stage beams or with the top bulb turned on. As the engine works against the load of the brakes, the turbocharger will start to create positive pressure in the intake manifold. The engine torque and horsepower increases as more boost is present, which in turn attempts to turn the rear tires, however the two sets of Aerospace Components rear brake calipers will hold the car to prevent that from happening. With the engine producing boost, the driver will then creep into the stage beam ready for action with the boost at an optimum level to help the car perform at its best.
In some situations, like in the more serious turbo vehicles, once the engine starts to make boost, the driver will ease the car into the lights by slightly/partially releasing the brake pedal pressure while simultaneously grabbing the transbrake button. This “bumps” the car into the staged beams. The technique can be difficult, particularly for drivers that are new in the turbo world. Thanks to some ignition and digital solution manufacturers, there are now specific pulse modulators, affectionately nicknamed a bump box, that have replaced the driver’s manual control of the transbrake in the staging technique. Despite these awesome electronics, the Aerospace Components Dual Rear Brake kits are still a vital and essential component in the staging process for turbocharged applications to hold the vehicle when the engine revs are brought up against the stopping force of the brakes.
We caught up with noted NMRA racer Brad Gusler of BG Racing, who has been pushing the edge of Ford’s latest engineering marvel, the 2.3L EcoBoost engine. His 2015 Mustang EcoBoost recently eclipsed the ten-second barrier, the first time for that engine platform. He explained the new Aerospace Components S550 Mustang Dual Rear Brake kit was an integral part of his success partly due to class rules and the fact that the aftermarket hasn’t developed a transbrake yet for the factory Ford 6R80 transmission. Gusler relies on his braking system to achieve the proper launching technique for the best performance and consistency when competing in the Index-based Super Stang category.
“It has been a night and day difference from the single caliper to the dual caliper,” commented Gusler as he reminisced about the recent switch to the Aerospace Components kit. Before the dual rear calipers, his 2015 Mustang EcoBoost would push through the lights anywhere from three to five pounds of boost. And according to Gusler, his starting line technique was very inconsistent. Once the new dual caliper setup was installed—“I can hold the car at 4,000 rpm and the engine is at 20 pounds of boost every time. That is a big reason how I can get the car to run 1.45 sixty-foot times,” he concluded. The sixty-foot time is impressive considering the car’s 3,600-pound race weight and IRS style rear suspension.