The NHRA is updating the engine and fuel combination for the Top Alcohol Dragster and Top Alcohol Funny Car classes for the 2026 season.

The new combination, which will join the traditional supercharged methanol and injected nitromethane options available to both classes, will allow teams to run their supercharged engines on nitromethane fuel and will provide another next-step learning opportunity for teams hoping to step up the Top Fuel and Funny Car classes of the NHRA Mission Foods Drag Racing Series, according to the sanctioning body.

Requirements and specifications for both blown nitro combinations are the same as those for Top Fuel and Funny Car, but nitromethane content is restricted to 85% maximum, NHRA officials said, and artificial cooling and/or heating of fuel is prohibited.

The supercharger overdrive ratio is limited to a maximum of 16.99% (1.1699) of engine speed, and only one magneto, coil and points box may be used, series officials said. Clutches can utilize a maximum of four clutch discs with a maximum of six primary levers, but no clutch management system is allowed. Cars must also have the correct Electimotion Safety Box receiver for quarter-mile competition. Funny Car bodies must meet current NHRA nitro Funny Car specifications.

For more information, visit nhra.com.