The NHRA E3 Spark Plugs Pro Mod Drag Racing Series presented by J&A Service will now kick off at the NGK Spark Plugs NHRA Four-Wide Nationals in Charlotte, marking the 20th year that the class has been a part of NHRA competition.

Pro Mod will still feature side-by-side, five-second doorslammer racing, but there are numerous changes as the class enters its third decade.

First, there are new rules regarding power adder combinations. The ProCharger centrifugal supercharger and large displacement (960-cubic-inch) nitrous engines are now legal. There are now five distinctly different engine combinations for racers to choose from including the current turbocharger, supercharger, and small (909-cid) nitrous engines. Additional new rules are posted below.

From a procedural standpoint, changes have been made in an effort to attract new Pro Mod racers to the category. Grade points, event quotas, and pre-entry regulations have been eliminated from the rulebook, which means that any licensed Pro Mod driver who wishes to enter a race may do so right up to the entry deadline (typically Monday before the start of the event).

In addition, the E3 Spark Plugs Pro Mod class will also visit some new venues in 2020. New this year are races in Chicago, Denver, and Brainerd.

Major Pro Mod Rules Changes:

• ProCharger and big (960-cid) engine combinations approved for competition
• Fresh air breathing system now mandatory
• Transmission case and lines must be fully enclosed in a tunnel constructed of aluminum, steel, or carbon fiber
• Any front-end body part made with carbon fiber must be covered with SFI 54.1 flame retardant coating.
• A 60psi normally open-air switch must be installed to prevent the car from starting if system air pressure is below 60psi.
• Window net must release with a quick lock and or spring-loaded mechanism.

For more information, visit nhra.com.

Photo courtesy of NHRA