Stealing The Show (And Everyone Else’s Money) At The Dyno Day
A Duramax sweeps the dyno day, diesel drag racing in Tulsa, and the latest technological breakthrough for the 7.3L Power Stroke.
Diesel News
Welcome to your daily dose of diesel! This is where we break down the latest announcements from the OEM world, highlight the biggest news in the diesel aftermarket, and even showcase ground-breaking new products.
Greg A.’s 1,500hp Seventy 2 Fast Engine
1,500 hp for 72 Fast, 3,000+ hp for UCC, why no-prep racing is so popular, and the best 6.7L Power Stroke engine package for turning out four-digit horsepower.
O-Line’s Triple-Turbo’d, Sigma Pumped, Billet Block & Head Cummins Is Ready To Dyno
A Super Stock Cummins is ready for the engine dyno, a 3-second Duramax dragster hits the hub dyno, the latest 6.7L Ford intake, and the largest L5P injectors to date.
Deep 6’s! Yet Another L5P Duramax/Allison Record
It’s another record for the L5P Duramax platform and two cutting-edge 6.7L Power Strokes are headed to June’s $100,000 drag race in Indy.
Fresh Records & New Personal Bests At Rudy’s Spring Truck Jam
Big weekend at the Rock: the latest Pro Mod diesel hits the scene—a Mustang with a billet 6.4L Power Stroke under the hood, new personal bests, and fresh records.
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.
The Block That Survived 4,500 HP
Tearing down Josh McCormack’s 4,500hp deck-plate Cummins, a new dyno record at Firepunk, and a budget-friendly stand-alone ECU for diesel owners.
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.
Will This Billet Block 6.4L Reset The Fastest 4×4 Diesel Record?
No more cracked 6.4L blocks for Rudy’s Performance Parts, Jelibuilt’s 1,500hp 7.3L is up and running again, and All In Truck Performance squeezes 1,000+ hp through a stock LML turbo.
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.
Hub Dyno Magic: 2,600+ HP Duramax
Dan Zelten’s date with the hub dyno yields nearly 2,700 hp, inside a 10-second LB7 work truck, and a supercharged 7.3L rat-rod debuts at the annual Summit 7.3 event.
Behind The Scenes With KDD: P-pumped 7.3L Block Repair
How a P-pumped 7.3L survives 6,500 rpm and 3,000 hp, NHRDA drag racing from Arizona, and the common-rail experts at S&S are (once again) forced to expand.
Another Record For The Duramax!
The latest Duramax record, Dynomite Diesel Product’s quest to hit 3,000 hp on fuel with a common-rail Cummins, and Jelibuilt’s high-tech 7.3L arrives…
Licensed, Insured, And Fitted With A Parachute…
Fire breathing Duramax’s at the track, a seatless Cummins cylinder head, and Super Stock diesel truck action from the National Farm Machinery Show.
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.
P0016—The Deadliest Code Your 6.7L Power Stroke Can Throw
The infamous crankshaft/camshaft position code every 6.7L Ford owner hates, everyone’s favorite Super Stock puller gets a billet (steel) block, and the DOJ will no longer pursue criminal charges for deletes.
Another One In The Sand!
First fire-ups, indoor truck and tractor pulling, and a 6,000hp hub dyno… This is how you heat up the cold winter months in the Midwest.
Here Come The ZF 8-Speed Swaps
The first ZF 8-speed conversion kit for late-model Rams, uncrackable 6.0L heads, another big payday in diesel racing, and proof that additives add horsepower.
Taking It To The Pile
Indoor truck and tractor pulling from Kentucky, no-prep drag racing down in Texas, the Seventy 2 Fast competitor list drops, and S&S takes a look inside a battle-tested, race-proven DCR pump.
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.
Wheels-Up, Duramax-Powered Chevelle Goes Rounds At Cleetus MacFarland’s Christmas Tree Drags
Drag racing with Christmas trees in Florida, UCC 2026 prep in Tennessee, an LML Duramax locks in for Lights Out 17, and we remember a 1,400hp fourth-gen sleeper.
Is This The Next 4×4 King In Diesel Drag Racing?
The latest 4x4 diesel Pro Mod, Crazyhorse pulls in a crowd at PRI, a sub-4,000-pound Duramax is headed to Lights Out, and 1/8-mile ice racing up in Wisconsin.
PRI Preview
What to expect at the PRI Show, another Seventy 2 Fast build gets underway, a P-pumped 7.3L, and a look inside a piece of 4BT-powered, custom-tailored ag equipment.
Is Ram Underrating Its Factory Horsepower Figures?
Proof that the ’25-newer Cummins is more powerful than we thought, TSD’s IFS Super Duty nears completion, and racers come out of the woodwork for a shot at $100K.
The $100,000 Diesel Race
The highest payout diesel drag race in history, the Scheid Diesel Extravaganza returns to Terre Haute, and the Hot Shot’s Secret PPL joins forces with IHRA and OTTPA.
Test Hooking To A D9?!
Puller Vs. Pusher. Can a third-gen Cummins pull a D9 bulldozer? Plus, all the details on WC Fab’s square body Duramax swap kit and a one-of-a-kind 4BT Power Wagon.
SEMA’s Best Diesels
Three top-notch builds from SEMA, GM loses its license to use Allison trademarks, Jelibuilt’s next 7.3L Power Stroke, and a Wyoming diesel mechanic receives a presidential pardon.
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.