The Cummins QSM11 Marine Engine Story

Time for some QSM11 education.  As you read thru the below, always associate or think this—It’s 20 HP per gallon per hour—example = burn 17.5 GPH = 350 HP that is being asked from the engine – and that is … Read More

The Story of Cummins & Mercury SmartCraft “AKA SmartCRAP”

“SmartCraft” is a Mercury thing that started with their electronic outboards and is still the backbone of their gas engines & outboards. There have been so many changes and revisions over the years that even the Mercury “lifers” can’t keep … Read More

The Cummins 6CTA 8.3 Marine Engine Story

The Cummins marine version of the 6CTA 8.3 has evolved through many versions and horsepower ratings since it was released in the early 1990’s (about 24 years ago) as a 6CTA 8.3M-1 “300C”, but all of them still share the … Read More

Propping the Cummins 6CTA 8.3 480CE vs. 430/450 Diamond Engine

The Cummins Marine 6CTA 8.3-M4 “480CE” Story The Cummins marine 6CTA 8.3-M4 480CE engine has had a colorful history to say the least. Back in the early 2000’s Cummins produced the 480C-E “hybrid” version from the 430/450 diamond mechanical engine. By adding … Read More