Jacobs’ optimized engine brake for the 15-liter 2017 Cummins X15 engine is designed to capitalize on the optimization of the VGT and braking cam to deliver 10 percent additional braking power at engine speeds under 1,700 rpm. At a typical engine speed of 1,500 rpm, the unit is built to provide 450 hp of braking power for added control while in traffic or descending a hill. Wıth a downshift to increase engine speed, the engine brake in the X15 Performance Series is designed to deliver a retarding force of up to 600 hp of braking at 2,100 rpm.
Jacobs Vehicle Systems, www.jakebrake.com
