Diesel Performance Blog

The 12 valve Cummins is the engine that built the Dodge diesel reputation. Built from 1989 through 1998 in two distinct versions - the 1st gen (1989-1993) and the 2nd gen (1994-1998) - the 12V is full … Continue reading: 12 Valve Cummins (1989-1998): The Legend, the Specs, the Build Path

The 24 valve Cummins is the engine that bridged two eras of Dodge Ram diesel trucks. Built from 1998.5 through 2002, it kept the legendary 5.9L B-series block but added a four-valve-per-cylinder head … Continue reading: 24 Valve Cummins (1998.5–2002): Specs, Common Problems & Performance Path

6.7 Cummins Cooling System Modifications: Complete Guide The 6.7L Cummins is a strong, capable engine — but its cooling system has well-documented weak points that affect both high-mileage truck … Continue reading: 6.7 Cummins Cooling System Modifications: Complete Guide

12V Cummins Turbo Upgrades: Complete Performance Guide The 12-valve Cummins is the most modification-friendly diesel engine ever put in a pickup truck. It has no electronic fuel controls to work arou … Continue reading: 12V Cummins Turbo Upgrades: Complete Performance Guide

VGT Turbochargers for Cummins Engines: The Complete Guide The variable geometry turbocharger — commonly called a VGT — is one of the most significant pieces of technology in modern Cumm … Continue reading: VGT Turbochargers for Cummins: The Complete Guide