Quarter Midgets

Now that 2023 is winding down it is time to focus on 2024 and prepare for a more successful year. A.R.S. continues to develop its Quarter Midget shocks with the addition of the special right rear valving. We build all the quarter midget shocks using the M-1 or the M-1X valving. The M-1 X valving was designed for lighter classes on asphalt and dirt tracks. This valve curve provides more grip by promoting weight transfer which is a big factor on cars with a high percentage of left side weight. Now that racing tires are being built with more synthetic rubber chassis weight transfer is an important factor especially in lighter classes. The    M-1X valving can be installed in any A.R.S. quarter midget shock old or new. The update is quite involved in some older shocks because the base valve needs to be modified so the entire shock is pulled down to the bare body. After updating your shock, it will be like new because every O-ring, seal, as well as valving parts will be replaced. The shocks will all be dynoed to ensure each valving curve is correct.

The standard M-1 valving continues to be a great valving curve for the heavier classes or the chassis that are designed around this valving. The check valve in the standard M-1 valving allows the shock to be built with more control of the rebound to compression ratio. This shock is still ideal for certain race cars that have developed their chassis balance around this valving.

To encourage all our customers to assess their shocks’ condition before the next season, we’re offering a reduced cost for shock dyno services on any A.R.S. shock—only $10 per shock until January 31, 2024. 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 return address, phone number, and a brief description of what you would like done to your shocks. A shock maintenance form is available from our website. After the 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 next season.

If you have any question about shock valving for your quarter midgets please call at 317-271-7100 or e-mail at corey.fillip@advancedracing.net

Package 1 – $1,100
(Four C/O Kits Included)

All Four Corners – 5500 Series Air Valve

All Four Corners

The 5500 Series shock is designed especially for Quarter Midgets.  It has a hard black anodized aluminum body.  This shock uses CNC machined aluminum internal parts designed for racing with no aftermarket parts.  This shock has a combination of a vase valve design, which allows for very low rod pressure, and a check valve.  The air valve allows you to fine tune your gas pressure.  This shock accepts 1 5/8″ I.D. Sprints.

Package 2 – $1,040
(Four C/O Kits Included)

All Four Corners – 5500 Series Non-Air Valve

All Four Corners

The 5500 Series shock is designed especially for Quarter Midgets. It has a hard black anodized aluminum body. This shock uses CNC machined aluminum internal parts designed for racing with no aftermarket parts. This shock has a combination of a vase valve design, which allows for very low rod pressure, and a check valve. The gas pressure is already pre-set in the end cap. This shock accepts 1 5/8″ I.D. Sprints.