Ford’s 6.0L Power Stroke comes from the factory with a variable-geometry turbo, or VGT turbo. The concept is a good one: The exhaust impeller’s vanes can be turned to different angles on the ...

ATS Diesel Performance offers a complete kit to replace the stock VGT turbo with a non-VGT model. This simplification means the turbo vanes will be fixed in one position and can never stick.

Variable geometry turbos promise better boost and efficiency, but do all Cummins engines include them? Dive into the tech and ...

The new Volvo D13 VGT engine, designed to power regional delivery and urban applications, can heat up quicker than engines designed for long-haul operations. It will be standard ...