Dobey Racing

Tire Compounds :

• Soft − Hard
• Softer tires provide more traction. Harder tires last longer.
• Soft compound is soft enough for you to dig into with your fingernail.

Spec Tires :

• Many series and local tracks require cars to run a "Spec Tire", typically on the right rear of the car.
• Usually a harder compound tire.
• Spec Tire rules are intened to save teams money.
  1. Many teams competing at the top levels have the resources to install a new tire each time the car hits the track, while many saller teams run the same tires for several nights.
  2. Spec tires are a hard compound tire. They can often be used for several events.
  3. Teams get tires cheaper since vendors only have to supply one tire instead of four sizes in various compounds.
• You will still burn the blocks off of a spec tire during the A-Main on a black, dry slick race track.
• The Hoosier DT3 seems to be the most popular Spec Tire for non winged sprints. It's what we run.
• A DT3 costs between $140 and $160 USD.

Front Tires :

• Circumference :

  Approx. 85"

• Wear :

  A medium-soft tire can last four or five events.

• Cost :

  Between $80 and $90 US, per tire.

Left Rear Tires :

• Circumference :

  82" − 100"

• Wear :

  • Medium-soft tires last two or three events.
  • A soft tire usually only lasts one event.

• Cost :

  Between $175 and $200 US, per tire.

• Tire Pressure :

  Run as low as 4 psi.

Right Rear Tires :

• We run the Hoosier DT3.

• Circumference :

  Approx. 104"

• Wear :

  Can last two or three events.

• Cost :

  $140 − $220 US, depending on rules and tire.

• Tire Pressure :

  6 − 14 psi. depending on conditions.

Construction :

Wheel Size :

Front Wheels :

Left Rear Wheels :

Right Rear Wheels :