FRONT: - RideTech.com
Transcription
FRONT: - RideTech.com
FROM BARE TO BAGGED FRONT: To outfit the front, we chose Air Ride Technologies’ ’59-’64 Chevrolet Front ShockWave kit, which includes StrongArm tubular upper and lower control arms and their ShockWave adjustable air spring/shock combination, which features the shock absorber inside of the air spring. The kit comes com- plete with everything from the required bushings to ball joints and the necessary instructions to complete the bolt-on installation. To further increase the handling potential, we also chose to outfit our subject Impala with an Air Ride Technologies MuscleBar front anti-sway bar. The MuscleBar will help eliminate unwanted body roll, which is common with these cars. 01 02 The X-frame from this Chevrolet Impala was carried into our shop bare, wearing nothing more than a layer of black powdercoat. Before starting, we set the frame at the approximate finished ride height. The StrongArm setup consists of both upper and lower tubular control arms, and incorporate the ShockWave air spring/shock absorber combination inside. They are bolt-in replacements for the factory components. 03 04 Air Ride Technologies includes new cross shafts with their StrongArm tubular lower control arms, which were designed to mount in their original location, making installation simple. Unlike the lower arms, you have to reuse the original cross shafts for the upper arms. To make them fit, we had to grind off the extra material around one of the bolt holes. The instructions are clear on how to do this. FITTING A ’59-’64 CHEVROLET X-FRAME WITH AIR SUSPENSION BY ERIC ANDERSON While staring at a bare frame can be intimidating, having the opportunity to commence a “frame-up” project was something we were excited to do. Our task was to outfit our subject 1961 Chevrolet with the most recent and innovative air suspension components available from Air Ride Technologies, and to soak up as much knowledge about air suspensions as we could handle. While such a pared down project is scary for many, it serves as a fantastic tool to teach and learn from, as it offers great access to each component. We chose this kit from Air Ride Technologies due to its completeness and because it’s truly a bolt-on installation. Long-term plans for this chassis include wearing a ’62 Impala body as a part of a fully capable street machine, which will see occasional track time (both at the dragstrip and on the road course). There may even be a date with the Silver State Challenge (see page 48) in store. While we’re not opposed to fabricating parts, the ease of the installation, teamed with the exceptional performance and ultra-low stance potential is why these kits have become so popular. Follow along over the next few pages as we dress this bare ’61 Chevrolet X-frame with an air suspension system that is sure to provide the ride comfort, handling performance, and parking lot prowess that Air Ride Technologies’ air suspension systems have become so well known for. 42 STREET THUNDER 05 06 07 We installed the supplied bushing in the upper StrongArm after applying a bit of grease to make the installation easier. With the StrongArm secured in a bench vise, we used an appropriately-sized socket and hammer to press the bushing into the arm. Before installing the upper control arm, we installed the upper shock absorber bushing and tightened the ShockWave into place. STREET THUNDER 43 08 09 After installing the now-modified stock cross shaft and completing the rest of the upper StrongArm assembly, we fastened it to the frame in the original mounting location. The lower StrongArm came with a ball joint pre-installed, however the upper arm did not. We installed the ball joint as well as the supplied grease fitting in the arm. 10 11 12 High performance, aftermarket disc brakes will soon replace the old drum brakes, but we reinstalled the stock pieces for now. With the upper and lower StrongArms on the frame, we turned our attention to the front anti-sway bar. We attached the provided bushing to the frame using the original antisway bar mounting holes. After mounting it to the frame, we connected the anti-sway bar end links to the lower StrongArm anti-sway bar mounting plate. REAR: Wanting the ultimate in air suspension performance for this ’61 Impala, we chose the Air Ride Technologies CoolRide kit for ’59-’64 Chevrolet Impalas (below), which includes a StrongArm tubular upper control arm and pair of StrongArm lower control arms, as well as an adjustable Panhard bar, air 13 springs, spring sleeves, and adjustable shocks. Similar to what we chose for the front, we elected to install a MuscleBar anti-sway bar in the rear as well, for the greatest handling ability. Considering rear anti-sway bars were not installed on these cars from the factory, the handling improvement should be instantly noticeable as soon as this Impala hits the road. 16 With the rear axle located by the upper control arm, we installed the StrongArm lower control arm in the original location. Prior to installation, we bolted the air spring to the spring sleeve, installed the 6-inch mounting stud, and made sure the air fitting was aimed towards the hole in the sleeve. We attached the air spring to the StrongArm lower control arm and then pushed the stud through the 7/16inch hole. Before fastening the spring sleeve to the frame, we located it using the provided bumpstop. 17 18 19 After replacing the original Panhard bar stud on the axle housing with the new one (included in the kit,) we bolted the new, adjustable Panhard bar into place. Before drilling the anti-sway bar mounting holes, we made sure the frame was level and that the bracket placement would allow the end links to reach both the front and rear positions on the anti-sway bar. With the holes drilled, we bolted the bracket to the frame using the supplied bolt plate. We tightened the frame mount, then tightened the axle mounts to finish the StrongArm rear anti-sway bar installation. 20 21 After installing the control arms, Panhard bar, and anti-sway bar, the only thing left was the adjustable QA1 shocks. The new units bolted into the stock shock location. Installation of the CoolRide rear suspension kit is complete! We’re confident that once the car is finished, it will perform far better than before. The only thing left is to plumb and wire the car. 14 After positioning the rear axle, we leveled the frame, and then installed the upper control arm. The original stamped steel piece pales in comparison to the rigid, tubular StrongArm. 44 15 STREET THUNDER STREET THUNDER 45 Behind all of the tubular suspension components and high-tech air springs is Air Ride Technologies’ RidePro e system. The RidePro e kit arrived complete with a 5-gallon air tank, 4-way RidePro air valve assembly (pressure solenoids), two air compressors, the necessary pres- CONTROL MODULE sure sensors, all wiring and air fittings, and an in-car RidePro e control module. Considering this Impala is currently without a body, we chose to layout all of the plumbing and wiring in the back of the car. Once the car is finished, the The pressure solenoid assembly looked like a headache waiting to happen, but it was anything but. All we needed to do was determine which solenoids controled each air spring. We used masking tape to label each solenoid, which saved us from having to remember where each pair of wires belonged. FRONT AIR SPRINGS L R REAR AIR SPRINGS L R components will end up in their appropriate places, but for now, we set everything up in the “trunk.” To understand how this all works, you first need to understand what each component is responsible for. Using the diagram on the left, we can trace an incar input of whether to raise or lower the car through the entire system. From the cabin of the vehicle, using the control module, an air pressure is selected for each corner. Once a pressure has been chosen, the signal travels to the RidePro e computer, which sends the request to the RidePro pressure solenoids. The solenoids then either send air to the air springs to inflate them or bleed pressure from the air springs to deflate them. The two air compressors are used COMPUTER In order for the in-car RidePro e control module to display the pressure at each corner, lines from the air valve assembly lead to pressure sensors that transmit the information to the controller. All it takes to install the DOT-approved air lines is to push in the orange part of the air fitting and then feed the line in until it stops; release the orange fitting and the line is ready to go. Simple! PRESSURE SOLENOIDS PRESSURE SENDING UNITS BATTERY AIR TANK PRESSURE SWITCH RELAY KEY HOT The larger diameter air lines (running to and from the tank) attached similarly to the smaller lines (leading to the pressure sensors,) except instead of orange the fittings are black in color. We made sure to use an adequate amount of thread sealant on the air fittings to prevent any potential air leaks. AIR COMPRESSORS 46 STREET THUNDER STREET THUNDER to fill the 5-gallon air tank, which feeds air to the pressure solenoids. In order for the in-car control module to know the pressure in each air spring, pressure sensors are used in conjunction with the pressure solenoids. In other words, the in-car control module represents the gauge faces while the the sensors are the gauges themselves. Installation of the kit was very straight forward and with a little attention paid to cutting the air lines straight and making sure to run the lines away from anything potentially harmful, this ’61 Impala should withstand years of cruising, track driving, and laying frame in a parking lot. What more can you ask for? NSMC SOURCE PLUMBING & WIRING: Ai r R i de Techn olo gies, I nc. 350 South St. Charles Street Jasper, IN 47546 NSMC (812) 482-2932 www.ridetech.com