Competition Engineering's 3-Way Adjustable Drag Shocks are designed to allow the racer to dial-in the race car to meet changing track conditions. Shock valving plays a very important role in the way your car will perform both during initial launch and throughout the quarter mile.
The principle behind our shock absorber design is to allow the front end of the race car to rise rapidly upon initial launch, creating greater weight transfer and better traction to the rear tires. As the car travels down the track, the front end will gradually descend to its ride height without unloading the rear tires which is a major cause of wheel spin. Our rear shocks work in conjunction with our front shocks making the transition from initial launch to top end charge as smooth as possible.
When using Competition Engineering's Rear Drag Shocks with a leaf spring suspension, you will see a greater amount of chassis separation than before. This means that your suspension is working to plant the rear tires to give you the utmost in traction. For cars with rear coil springs and factory four link, you will notice increased squat in the rear suspension which will apply more weight to the rear tires increasing their traction.
Competition Engineering's Front Drag Shocks are adjustable in three ratios: 90/10, 80/20 and 60/40. These ratios reflect the percentage of force required to extend and compress the shock absorber. You can quickly change the valve setting by simply compressing the shock fully and rotating the shaft until the indexing notch mates with the desired setting on the body. It's as simple as twist and click.
Our Rear Drag Shocks are also adjustable in three ratios: 30/70, 40/60 and 50/50. These ratios also represent the percentage of force required to compress and extend the shock unit. Only this time the first number is compression and the second extension. These shocks also adjust by compressing them fully and rotating to the desired setting on the body. Applications: 1984-71 Buick Full Size
1986 Buick Full Size Wagon
1967-64 Buick Special, Skylark
1957-55 Chevrolet Full Size
1982-63 Chevrolet Corvette
1981-70 Chevrolet Camaro
1967-64 Chevrolet Caballero/El Camino
1967-64 Chevrolet Chevelle, Malibu
1986-65 Chevrolet Full Size
1979-72 Ford Elite-Fairlane-LTD II-Torino
1986-65 Ford Full Size
1979-72 Ford Ranchero
1979-67 Ford T-Bird
1959-57 Ford Full Size
1979-74 Mercury Cougar
1986-65 Mercury Full Size
1976-72 Mercury Montego
1977-92 Oldsmobile Full Size Wagon
1986-71 Oldsmobile Full Size
1990-65 Oldsmobile Full Size Wagon
1968-62 Pontiac Grand Prix
1981-67 Pontiac Firebird
1986-63 Pontiac Full Size
Extended Length: 15.34 Collapsed Length: 9.62
NOTE: These shocks are designed for DRAG RACE use only! Not for street use. Spec Sheet
To fine tune the amount of weight transfer to the rear suspension for lower ET's, use Competition Engineering 3-Way Adjustable Shocks together with our Rear Drag Race Springs.
Rotate Competition Engineering's Adjustable Drag Shocks' shaft several revolutions with a wrench to free up the internal components before installing the shock in the car for the first time. This will make subsequent tuning adjustments easier.
When mounting rear shocks on a drag race vehicle you want them to be 90 degrees from the axle centerline. On street cars, you can tilt the top of the shocks inboard 5 -10 degrees for better handling.
Before weighing your vehicle, make sure that it is race ready - driver on board, full load of fuel, and the correct amount of ballast added.
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