The marks serve as reference points that will allow Mase to keep track of the number of adjustment turns he makes on each side.
Pinion angle is basically the angle of the rearend's pinion gear in relation to the driveshaft. Our coupe's pinion will rotate upward under launch or hard acceleration, so Mase dials in 3 degrees of negative pinion angle by adjusting the upper control arms to compensate for the rotation, ensuring the imaginary line from the back of the crankshaft through the transmission, driveshaft, and the pinion is as straight as possible.
Inside the trailer, the head of our wall-mounted HalGuard Automatic Fire-Suppression System sits parallel to the hood/engine-compartment area of our project T-top coupe. It will provide great protection for the car, and the contents of the trailer should there ever be a fire inside our car hauler.
In The Trailer
Prep for the drag test included a few upgrades on our 28-foot enclosed trailer as well. In an effort to bring more organization into the small area, we installed several items from Summit Racing Equipment, including a fuel-jug rack, aluminum storage shelf, 17-inch ratchet-strap hanger, canopy and collapsible-chair racks, and so on. They will keep our work area more efficient and simplify the loading process at the end of a race day.
We also installed the new HalGuard Automatic Fire-Suppression System from H3R Performance (PN HG 550S). It can be mounted on the floor or ceiling of a trailer, shop, or garage, and features a thermally activated head that will discharge the fire-suppression agent when it senses temperatures higher than its 155-degree Fahrenheit rating.
We've been keen on HalGuard for a while now and use H3R's fire extinguishers in all of our project vehicles. The HalGuard chemical is cool in that it's nonconducting and residue free, so it's easy to clean up if the system is ever discharged.
Installing the fire-suppression system takes about an hour and a half to mount properly on the wall of a trailer, and it provides great peace of mind about the security of your trailer's contents in the event of a fire.
Each galvanized, self-tapping screw includes a flat washer that helps spread the clamp load evenly and secure the bracket to the wall. It's important to use a level when installing brackets for this fire-suppression system to ensure the tank will be mounted correctly. We recommend using red Loctite on each screw. Once the wall brackets are installed, tank brackets are placed around the HalGuard cylinder and secured using a 9/16-inch socket and wrench.
Once two crossbeams (studs) are located behind the wall panel, we mark the locations for 10 small holes that must be drilled to secure the system's upper and lower mounting brackets (five holes per bracket).