Asphalt Sprint Cars

2027 Asphalt Sprint Car shock package

Left Front

The rebound holds cross weight in the chassis, which creates forward bite. Too much rebound pulls the tire off the ground and makes the chassis push mid-corner to exit. The rebound dampening requirements change on a short, tight corner track versus a fast, sweeping corner track.

Non-Winged car: Sufficient compression is needed in this shock to keep the right rear loaded on corner entry.

Winged cars: Stiffer compression is needed to keep the left front from bottoming out on corner entry from the downforce of the wing.

 

Right Front

The right front shock valving has been updated to make the R.F. tire have more grip. A fine tune adjustment needle is also being used to set the rebound of this shock. We have found that rebound control in this corner is a big tuning tool to roll the corner properly. The base valve in the right front shock only requires 20 psi. which also provides maximum grip.

Non-winged car: Additional compression is required to keep the chassis tighter on corner entry.

Winged cars: Softer compression is required compared to the non-winged shock as the wing does not load this corner as much.

 

Left Rear

The demand of this shock is very different from a non-winged car versus a winged car. When valving the left rear shock, you need to balance between ensuring it has enough rebound to keep the left rear tire driving and avoiding adding too much that would make the chassis tight in the middle of the corner. We recommend the canister on the left rear to provide more gas volume and create more traction.

Non-winged car: The rebound is fined tune with a 5-degree needle to keep more left rear drive in the chassis, but not too much rebound that it would make the chassis tight in the center of the corner. A soft compression is required to keep traction in this corner as the tire is unloaded on corner entry.

Winged car: Not as much rebound is required because the wing loads this corner and excessive rebound makes the chassis tight throughout the corner. The rebound is fine tuned for the different track speeds and configurations. More compression is required to keep the chassis from bottoming out on corner entry. A tremendous amount of load is generated on the L.R. corner by the wing on corner entry.

 

Right Rear

The right rear shocks have a new valve curve that creates more traction. By changing the balance of the piston to base valve flow, we have developed a great right rear shock. We lock in the compression dampening and then adjust the rebound dampening. We recommend the canister on both rear shocks, as it provides more gas and oil volume, resulting in the right rear tire creating more traction.

Non-winged car: The rebound is fine tuned to balance the chassis to create as much forward bite as possible without making the car tight in the middle of the corner.

Winged car: Less rebound is required versus a non-winged car to keep from being too tight in the middle of the corner. More compression is needed in the R.R. shock to counter the load generated by the wing.

SHOCK DYNO TESTING SERVICE

Now that the racing season is over, this is the ideal time to start preparing for next season. Many of our customers send all their shocks in to be dynoed at this time of the year so that they can be checked after a long season of racing. To urge all of our customers to check the condition of their shocks before next season, we are reducing the cost for shock dyno service on any A.R.S. shocks to $10 per shock until January 31, 2027. This reduced shock dyno offer will give you a chance to evaluate the condition of your shocks after a season of racing and, at the same time, review any new valving combinations. When sending your shocks to us for service, please enclose a note with your return address, phone number, and a brief description of what you would like done to your shocks or a shock maintenance form, which is available on our website. After your shocks are dynoed, we can call you with the results and discuss the outcome of your shocks or any new shock combinations. Many customers send all their shocks to us during this special dyno offer, so send your shocks in as early as possible to avoid any delays in preparing for the next season.

Package 1 – $2,800
($3,040 with four C/O Kits)

Fronts – 3200 Series SB Mono Tube A or B Model  Cockpit Adjustable

Rears – 3200 Series SB Mono Tube A or B Model Cockpit Adjustable with Remote Canister

Cockpit Adjustable cables included.

Fronts

The 3200 Series shock is a small body mono-tube (gas) shock with a hard black anodized aluminum body. This shock uses CNC machined aluminum internal parts designed for racing with no aftermarket parts.  These shocks contain the latest T/C valving for maximum traction.  They come in either A or B-Model Cockpit Adjustable.  The base valve design in this shock allows for very low gas pressure to be used and still function properly.  This shock has a Schrader valve that will accept 10-100lbs. gas pressure which provides for fine tuning of the chassis balance.  The small body shock accepts 1 7/8”, 2 ¼” & 2 ½” I.D. Spring & is available in 5”, 6”, 7”, 8” & 9” shaft lengths.

Rears

The 3200 Series shock is a small body mono-tube (gas) shock with a hard black anodized aluminum body and canister. This shock uses CNC machined aluminum internal parts designed for racing with no aftermarket parts.  These shocks contain the latest T/C valving for maximum traction.  This shock comes in A or B-Model Cockpit Adjustable.  The base valve design in this shock allows for very low gas pressure to be used and still function properly.  When combined with our canister option and the ability to run low rod pressure this shock has virtually no rod pressure build up and allows for maximum grip a driver can feel.  This shock has a Schrader valve that will accept 10-100lbs. gas pressure which provides for fine tuning of the chassis balance.  The small body shock accepts 1 7/8”, 2 ¼” & 2 ½” I.D. Spring & is available in 5”, 6”, 7”, 8” & 9” shaft lengths.

Package 2 – $2,600
($2,840 with four C/O Kits)

All Four Corners – 3200 Series SB Mono Tube A or B Model Cockpit Adjustable

Cockpit Adjustable cables included.

All Four Corners

The 3200 Series shock is a small body mono-tube (gas) shock with a hard black anodized aluminum body. This shock uses CNC machined aluminum internal parts designed for racing with no aftermarket parts. These shocks contain the latest T/C valving for maximum traction. They come in either A or B-Model Cockpit Adjustable. The base valve design in this shock allows for very low gas pressure to be used and still function properly. This shock has a Schrader valve that will accept 10-100lbs. gas pressure which provides for fine tuning of the chassis balance. The small body shock accepts 1 7/8”, 2 ¼” & 2 ½” I.D. Spring & is available in 5”, 6”, 7”, 8” & 9” shaft lengths.