Pushing The Vertical Limits Of The 6.4L Power Stroke Fuel System
Cutting-edge 6.4L Power Stroke tech, drag race and truck pull season prep, and low-4-second expectations for David Petrick’s 4x4 Pro Mod.
fastest L5P Duramax
SPIED: The 6.7L Power Stroke That’s Bringing 1,400+ HP To Indy
Inside a wild Seventy 2 Fast class engine build, Crazyhorse takes second at Cleetus MacFarland’s AWD vs. RWD shootout, and the blueprint for a 1,000hp 7.3L.
Diesel Truck Wars
Drag racing in North Carolina, Paul Cato preps for Cleetus MacFarland’s AWD vs. RWD shootout in Florida, and a new dirt drags series comes to the Midwest.
Black Nasty: 1,300 HP, Low 10s, Factory L5P
Mikie Carrasco’s record-setting, full interior, 8,000-pound 4x4 Silverado is further proof the L5P is the toughest Duramax ever produced.
This 2,100HP Third-Gen Cummins Is For Sale—But NOT On Sale
Chris Naudain’s dyno-melting third-gen may change hands, a pair of Seventy 2 Fast builds profiled, and some major players hit the hub dyno at S&S.
New 4×4 Duramax ¼-Mile Record!
A record-setting pass for a Duramax at SICK Week, two Seventy 2 Fast projects go under the knife, and at least 100,000 6.7L Fords are protected from catastrophic CP4 failure.
First To Market: Edge’s EZ Module Adds 110hp To ’25+ Cummins-powered Rams
The first tuner for ’25-newer Rams, a game-changing valvebody for the 10-speed Allison, and BIG changes in the truck and tractor pulling world.
VE-Pumped 1st-Gen Makes 1,168HP!
PPL uncorks its Pro Stock tractor class for 2026, another P-pumped Duramax puller is in the works, an L5P Duramax tow-rig runs 10’s on fuel, and a first-gen Cummins makes a nitrous-assisted 1,168 hp on the rollers.
4,500 HP Or Bust!?
DDP’s plan to hit 4,500 hp, a new L5P Duramax horsepower record, ODSS drag racing returns to Ohio, and a pair of proven, 10-speed TorqShift options for ’20-newer Fords.
Steven Giordano’s 2,271 HP Cummins-Powered OBS
6.7L Cummins and L5P Duramax horsepower recipes , billet-aluminum truck pulling bling, and upgrade season begins for one motivated ODSS racer.
2,000 LB-FT Of Torque—On A Bone-Stock Long Block
The story behind Neal Driedger’s 2019 GMC—the most powerful factory sealed L5P Duramax in the world.
Holy Grail Hummer: A Duramax-Swapped H1
The ultimate H1, 11-second quarter-miles with a stock turbo L5P Duramax, NHRDA vs. ODSS, and the latest Power Stroke heads on the market.
The Aftermath Of Playing With Fire! (2,000 LB-FT Stock Bottom End L5P)
Pushing a factory long block L5P Duramax to the brink, Wagler’s ultimate Cummins valvetrain solution, and Stainless Diesel’s new top-feed injector system.
2,000 LB-FT From A Stock Bottom End L5P Duramax?
1,500 hp and 10-second quarter-miles from a pair of factory long block L5P Duramax’s, ODSS race prep for Indy, and finding the limits of a 7.3L Power Stroke.