ProCharger Resets Drag Strip Records With The Monster F-4X-140-2 Supercharger

Walking through the ProCharger booth at the SEMA Show always reveals fresh forced-induction hardware paired with a massive list of dragstrip trophies.

At SEMA 2026, those two traditions merged into a single centerpiece as the company officially showcased the giant F-4X-140-2 centrifugal supercharger.

Designed for Outlaw Pro Mod and radial-tire competition, this updated head unit already owns the PDRA Pro Boost elapsed time record and recently locked up the Radial Outlaws Pro 275 championship.

Extracting that kind of performance meant pushing the physical dimensions right up to the limits of the sanctioning bodies’ rulebooks.

Director of Service and Motorsports Walt Sipp notes that his engineering team maximized both the impeller wheel and the compressor housing to unlock serious aerodynamic efficiency gains over the original dash-one unit.

The revised F-4X-140-2 pairs a 5.55-inch inducer diameter with a massive 14.5-inch volute housing and a 5-inch outlet. Rated to flow 4,700 cfm and support 4,000 horsepower at 65 psi, the updated design routinely delivers a 7 to 10 psi boost increase over its predecessor.

Behind that giant compressor sits the proven F-4 gearbox, utilizing a 4.70:1 internal step-up ratio to spin the impeller up to a screaming 72,000 rpm without sacrificing round-after-round durability.

Stacking up record timeslips before a formal Las Vegas debut comes down to a full year of real-world track development alongside top door-slammer teams.

ProCharger refined several iterations of the larger housing over the past 12 months with direct feedback from racers like Johnny Camp, Jeff Rudolph, and Sean Ellington.

That collaborative testing produced a blistering 3.54-second eighth-mile pass in PDRA Pro Boost midseason, setting an elapsed time benchmark that stood untouched for the rest of the year.

Wrapping up its maiden testing campaign with both a national record and a points title proves the F-4X-140-2 gives front-running door-slammer programs a serious horsepower advantage heading into next season.