CP3 Pump 101: Reliability, Upgrades & Tuning Tips for Cummins & Duramax A deep-dive into the Bosch CP3 high-pressure pump—how it works, what fails, how to test it, and the smartest paths to upgrade for towing, daily driving, or big power. We’ll cover lift pumps and filtration, rail-pressure logging, 10–12 mm...

Axle Ratios & Tire Size: Get the Right RPM for Towing Bigger tires and stock gears often wreck tow manners—unlocking, hunting, and heat. Here’s the math, examples, and a simple process to pick the right ratio so your truck tows cooler and stays in lockup. Quick Summary: RPM ≈ (MPH...

EGR, DPF & SCR: How Modern Diesel Emissions Work—and How to Keep Them Happy Understand the team: EGR reduces NOx formation in-cylinder, the DPF traps soot, and SCR handles tailpipe NOx. When one is unhappy, the others compensate—until they can’t. Keep the system reliable with the right maintenance and diagnostics....