Common-Rail Injector Tech

When high-pressure common-rail debuted on the LB7 Duramax back in 2001, it changed the way we look at diesels. Ultra-high injection pressure,…

The Maxx: 800-HP Dmax-Swapped H2

The Hummer H1 Humvee has been one of the most capable factory off-road vehicles ever produced, a purpose-built, go-anywhere vehicle that the US Army and Marine Corps have used all over the…

Connecting Rods: How Much Can Your Duramax Handle?

Because torque (i.e. cylinder pressure) is the primary killer of rods and pistons, it’s difficult to directly link a horsepower number to each engine’s weak link. However, as a general rule of…

Northwest Dyno Circuit: Second Competition Event

On April 18, the newly formed Northwest Dyno Circuit (NWDC) held its second event hosted by No Zone Diesel in Orem, Utah. With dyno…

Bosch CP3 Injection Pump: Fleece Performance Technology

Not only was the CP3 used on the Duramax engines from 2001-2010, the Dodge Cummins has been using its common rail…

Affordable Fueling Modifications: Duramax Upgrades

As with any diesel engine, more air and more fuel means more power. So naturally, the more fuel trucks receive, the better. However, not long ago, the sentiment that more is better…

Turbocharged Upgrade: HSP Diesel Duramax S300 Turbo System

Making 500hp in a 2001 to 2010 GM Duramax is easy, right? While easy may not be the right word, the Duramax is a very capable engine; with the right…