Diesel Tech / How-To

AND THE AFTERMARKET PARTS THAT MAKE IT EVEN BETTER The Cummins. It’s the engine that brought inline-six architecture, direct injection, the P-pump, and true, industrial-level […]

AND THE AFTERMARKET PARTS THAT MAKE IT EVEN BETTER It’s hard to say where GM’s heavy-duty pickups would be today if the Duramax had never […]

Upgrading the Turbo, Transmission, and Fuel System on a ’19 F-450 What do you do when you’ve already outfitted your ’19 F-450 with 22.5-inch ’Forces, […]

Refreshing the Worn Seats of Project 600HP Grocery Getter With Covers from ShearComfort It’s been a few years since Project 600HP Grocery Getter has appeared […]

Part Two: Ford F-350  Interior Cleanup Last month, we introduced an all-new project build—Project OBSessed. This 1996 7.3L Power Stroke F350 has 224,000 miles, had […]

12 to 18 Degrees–How Much Time Will We Gain? We hear it all the time, timing makes power. But how much power? Well, there are […]

A BEGINNER’S GUIDE TO COLLECTING THE QUICKEST TIME SLIP POSSIBLE As winter draws to a close and you brace yourself for spring and better driving […]

Giving an old, worn-out 12V Cummins a few fueling upgrades While the 12V Cummins might be considered a dinosaur to most in the diesel business, […]

CHECKING OUR CUMMINS HEAD BOLTS AT 270,000 MILES Cummins diesel engines are known for their insane reliability over upwards of 500,000 miles. When it comes […]

A RESTORED AND REBORN 550HP ’01 DODGE You can’t buy trucks like this anymore, but if you’re a dyed-in-the-wool second-gen fan, you can certainly do […]

PART 3: FORD F-350 UPGRADE BASICS Well, Project OBSessed—our remake of an old-body-style Ford—is finally taking shape as we convert this worn-out truck with 220,000 […]

Keeping EGT and Coolant Temps in Check in A Modified 6.7L Cummins With 800 lb-ft of torque or more on tap and a stack of […]

Adding Power, RPM, and Longevity to a ’98.5-’02 24-valve Cummins While the 24-valve 5.9L Cummins found in ’98.5-’02 Dodge Rams can be a great workhorse engine, […]

Installing No Limit Fabrication’s Compound System on a Brand-New ’19 Ford In the past, we’ve shown you how tuning alone can bring a ’15-present 6.7L Power […]

Introduction to the build-up of a ‘96 F350 Ford Power Stroke The Old Body Style (OBS) ‘94-’97 Ford is one of those trucks that will […]

The Exhaust Brake Every Second-Gen Turbo-Swapped 6.7L Cummins Needs Whether you’ve ditched your 6.7L Cummins’ factory Holset HE351VE to make more power or you were […]

Brown’s Diesel and Goerend Transmission Build a Race-Ready 47RH Four-Speed Automatic It’s no secret that diesel engines can handle stupid amounts of power. But transmissions? […]

Improving a 2012 LML Duramax After a few months hiatus, Project LML is back for its final installment of the build. Over the last year […]

Merchant Automotive’s TIG-Welded Water Pump With a 19-year track record under its belt, it’s safe to say the Duramax is one of the more reliable […]

Part Five: Air Density Project OBSessed is now in to it’s fifth part of the build-up with a few basic bolts on already completed and […]