Caterpillar Performance Handbook, January 2017, SEBD0351-47

Engine Selection

On-Highway Trucks

Accessories: The HP required to power the Cooling Fan, Alternator, Power Steering, A/C and Air Compressor at the desired cruise speed. Pacc = 57 HP @ 1600 RPM = 73 HP at 1800 RPM Considering 2100 is Max Engine RPM. Select a Pacc that best matches your application. PTO: The HP required to power Mixers, Pumps, Gen- erators, etc. that are running while the truck is cruising. Ppto = Supplied by Body Builder Zero if not running while cruising

Total HP Required at the Drive Wheel

Preq = Pr + Pa + Pg + Pacc + Ppto Engine Selection: Account for Driveline losses and select

an Engine with at least as much HP as P(eng) from table below. Continue to Step 2, to verify the Engine you selected has the required Torque.

Peng = Preq 0.93 0.93 = Driveline Efficiency

Engine Specifications

Horsepower (BHP @ 1700 RPM)

Torque Peak (lbf-ft @ 1000 RPM)

Gov. Speed (RPM)

Fully Developed Torque (lbf-ft at 800 RPM)

Engine

CT13 CT13 CT13 CT13 CT13 CT13

365 370 390 410 430 475

1250 1350 1450 1450 1550 1700

2100 2100 2100 2100 2100 2100

686 770 811 828 868 959

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Edition 47 12-21