LEHT3462-07 Page 4 of 6 1400 1600 1800 2000 2200 2400 Engine Speed rpm 300 hp (224 kW) 225 Torque lb-ft Power bhp 665 630 700 805 840 875 910 735 770 300 250 275 C7 ON-HIGHWAY DIESEL ENGINE — 300 hp PERFORMANCE DATA Operating Range (rpm) ............. 1440-2400 Governed Speed — rpm .................. 2400 Advertised hp (kW) .................. 300 (224) Max hp @ 1600 rpm (kW) ............ 300 (224) Peak Torque — lb-ft (N•m) .......... 860 (1166) Peak Torque — rpm...................... 1440 Torque rise (%) ............................ 38 Altitude Capability — ft (m) ....... 10,000 (3048) PERFORMANCE CURVES
C7 ON-HIGHWAY DIESEL ENGINE — 210 to 300 hp GEARING CONSIDERATIONS The C7 is designed and built to take full advantage of a “gear fast, run slow” strategy. The fully electronic C7 does not need to be gearbound to limit maximum vehicle speed — this should be done using Vehicle Speed Limiting (VSL) and VSL Protection parameters. (It is recommended that VSL be set to prevent excessive mph). For the best balance of performance and fuel economy, spec axle ratios and tire sizes to obtain: 2000 rpm @ 60 mph (97 km/h). Maximum recommended cruise speed is 65 mph (105 km/h). Minimum recommended engine speed is 1800 rpm, typically with a cruise speed of 55 mph (89 km/hr). If GCW is 50,000 lb or higher, spec. your truck to cruise at 2200 rpm @ 60 mph. The minimum startability requirements are 10% for pick-up and delivery, 14% for linehaul, 20% for on/off highway, and 25% for off-highway. At peak torque rpm in top gear, the recommended gradeability is 1.8% (1.5% minimum). At cruise speed in top gear, 1.0% is the ideal gradeability. To optimize your truck’s performance characteristics, a computerized spec’ing tool called Design Pro is offered by your Caterpillar dealer. It calculates effects of various driveline variables on engine operation such as transmissions, axles, and tires. This analysis allows you to verify that your truck’s driveline specifications are best suited to your application. LEHT3462-07 Page 5 of 6 FUEL Model year 2007 and newer Caterpillar on- highway diesel engines require the use of ULSD fuel in order to meet the United States (U.S.) Environmental Protection Agency (EPA) 2007 emissions regulations for on-highway diesel engines. Failure to use ULSD in these engines is punishable with civil penalties. Ultra Low Sulfur Diesel (ULSD) fuel will have ≤ 15 ppm (0.0015%) sulfur using the ASTM D5453, ASTM D2622, or DIN 51400 test methods. CRANKCASE LUBE OIL Diesel engine oils meeting the Cat ECF-3 (Engine Crankcase Fluid-3) specification are strongly recommended for use in 2007 model year and newer Caterpillar on-highway diesel engines. The Cat ECF-3 specification was developed in order to protect emissions control systems, help comply with the emissions standards, reduce engine wear, and control piston deposits and oil consumption in 2007 model year and newer on-highway diesel engines that are designed to use fuels with ≤ 15 ppm (0.0015%) sulfur. The combination of ULSD fuel and API CJ-4 compliant diesel engine oil is strongly recommended for optimum engine system performance. Note: Oils that meet the API CJ-4 oil category requirements are Cat ECF-3 compliant. FUEL AND LUBE OIL REQUIREMENTS
The manual is essential for all owners of Caterpillar C7 models, providing comprehensive information and specifications to maintain engine performance. It encompasses details for various Caterpillar C7 models, such as:
C7.1 70-Pin
C7.1 ACERT 70-Pin
C7 ACERT (Stage II) 140-Pin
C7 ACERT (Stage III A/B) 140-Pin
This Specs manual offers in-depth insights into each model, covering engine ratings concerning displacement, compression, and power. It includes crucial design and operational features to enhance engine durability. Additionally, the manual provides quick instructions, troubleshooting guidelines, and maintenance advice to maximize engine lifespan.
The Caterpillar C7 Engine Specs Manual contains vital data to ensure safe and efficient engine operation while complying with specifications. It serves as an invaluable reference for all Caterpillar C7 owners, catering to both professional mechanics and DIY enthusiasts.