World’s Fastest 4×4 Duramax
The 4x4 Duramax record changes hands, WP Developments breaks ground on a Super Stock pulling project, and we take a look inside a 1,500 hp, SPE-built 6.7L Power Stroke.
2025 Summit 7.3
More than just an event that celebrates an engine platform, Summit 7.3 is an annual gathering where enthusiasts, business owners, mechanics and manufacturers come together to improve the industry.
High Stakes 3.0
Super Duty body, second-gen Dodge chassis, deck-plate 6.7L Cummins—and built to win. Nick Zaenkert’s Ford is putting the Limited Pro Stock field on notice.
A Diesel Dominates Cleeter’s AWD vs. RWD Shootout
Another diesel in the 3’s, truck and tractor pulling from Louisiana, Diesel Truck Wars in North Carolina, and a diesel wins Cleeter’s $20,000 AWD vs. RWD Shootout.
A 5-Second, Fuel-Only Ford That Could Be Yours
The dreaded Cummins grid heater bolt, proof D&J builds some of the best engines in the business, Michael Brown’s big horsepower plans for U.C.C., and an old-school 6.4L turbo recipe that still gets the job done.
Jumping Jack Flash: Inside The World’s Only P-pumped 6.7L Power Stroke Puller
From mechanical 7.3L to common-rail 6.7L to P-pumped 6.7L Power Stroke, Ferenc and Nathan Vegh are determined to get a blue oval out front in the dirt.
World’s Fastest Diesel Chevette?!
A 10-second, subcompact from the 1970s, a 1,200hp late-model Super Duty, and first-gen skin for the Cummins-powered, American Outlaw monster truck.
The “Other” 5.9L
Alan Watson’s rare, DT360 International-swapped Super Duty packs a Bosch P7100, a ball bearing turbo, and turns out 850 hp.
Beaten, Abused, And Brand-New: DNR Customs Torture Tests The New Cummins
Inside: A first-look at the ’25 Ram, 2,100-plus hp on the chassis dyno, a 6.0L Power Stroke-swapped Lightning, and an easy 30hp gain for 6.7L Fords.
The Aftermarket Injector Return Line Fitting Every 6.7L Power Stroke Needs
Trade your 6.7L Power Stroke’s failure-prone, plastic injector return line fitting in for a heavy-duty aluminum, double O-ring sealed replacement from Fleece Performance Engineering.
Michael Brown’s Deck-plated, Compound Turbo, And Flux-Fueled Cummins
Two drag racers set their sights on deep 4’s, UCC prep goes full-steam ahead, and a look inside Denso HP4 high-pressure fuel pump failure.
Fitzgerald Performance Joins ODSS, Brings Diesel Drag Racing Back To Tennessee
Big news for the Outlaw Diesel Super Series, compression-ignition infiltrates the ranks of radial tire racing (again), a pair of must-see Cummins swaps, and we preview an EPIC 2025 pulling schedule.
Race To The Sand: Truck And Tractor Pulling From NFMS 2025
Four days at the largest indoor farm show in America. Four nights of the finest wintertime sled pulling in the world.
Complete Meltdown
Melted pistons, self-destructing CP4s, drag racers bound for Lights Out 16, and coverage from the indoor Super Bowl of truck and tractor pulling.
Blown Into Oblivion
Engine carnage, giant turbos, grudge racing, and last-minute prep for the biggest indoor tractor pull in America.
Big Compounds, Lightweight, And 5-Second 1/8-Mile’s
A look inside SICK Week, a pair of rear-wheel drive 6.70 Index racers with enough left under the hood to go 5’s, and a short word on counterfeit diesel products.
Improved Under Bed Filtration
Fleece Performance Engineering’s new primary fuel filter assembly means simpler, more affordable filter changes for your ’17-’24 Ford.
Are Ultra-Clean OBS Fords Worth $70K?!
Classic diesel repowers, the high-dollar, mint condition OBS Ford craze continues, and the abolishment of EV mandates.
Rags To Riches
L5P Duramax-powered, Allison 10L1000-shifted and MoTeC controlled. Keith Porter’s tire-shredding, 2,800-pound hot-rod proves anything is possible in the diesel industry.
Collapsed Lifters—The Fifth-Gen Failure Your Cummins Doesn’t Deserve
The inside scoop on Cummins lifter failure, a stand-alone VP44 controller, a Texas drag racer heads to Europe, and the latest mega-sized turbo for the racing scene.
The 2025 Ram Arrives—With A Completely Revamped Cummins
The latest on the 2025 Ram powertrain, indoor truck pulling from Indiana, a 5.0L Cummins C10 for sale, and a violent CP4 failure.
2024 Record Setters: Landmarks From The ‘Strip, Dyno, And Salt
The year that saw diesel’s first-ever 5-second quarter-mile pass, countless 3-second eighth-miles, 315 mph on the salt, and a new diesel door car record.
Modern Diesel Drag Racing, Summed Up In A Picture…
Fortifying the 48RE, wintertime truck and tractor pulling in Kentucky, Ford recalls nearly 300,000 Super Duty’s, and Rod MacMaster’s radial-tire Corvette receives its billet-aluminum Cummins.
Can A 6.4L Puller Succeed In The 3.0 Class?
Firepunk’s 2024 dyno kings, the 6.4L Power Stroke that could, a 4-million-mile 3408 Cat, and Daimler Truck invests $285 million in Detroit Diesel.
Christmas Carnage For A Pair Of Duramax-powered Hot Rods
Two LB7’s self-destruct, DHD looks to hire a Duramax builder, and Hot Shot’s Secret partners with Pro Pulling League for 2025.
The Duramax: 25 Years Later
A quarter of a century ago, GM announced plans to introduce the 6.6L Duramax we’ve all come to know and love.
PRI 2024: Once Again, Diesel Performance Makes A Statement
Billet engines and turbos, high-rpm fueling, cutting-edge electronics, and the fastest oil-burners in the world…the diesel industry arrives in force at the 2024 PRI Tradeshow.
A Wild Week In Indy
The latest in turbo, fuel system, electronics, and engine technology from the PRI Show, 2025 race prep, and the importance of CCV filter replacement.
It’s PRI Week
Get all the details on the revamped 6.7L Cummins, the PRI Show, and the trials and tribulations of Ring Racing’s small-tire Pro 275 endeavor.
A Performance-Friendly Sending Unit For 7.3L & 6.0L Power Strokes
Eliminate aeration, draw straw, and old-age issues with Fleece Performance Engineering’s new SureFlo sending unit for ’99-’07 Fords.