Cadillac LMC55R engine
| Cadillac LMC55R engine | |
|---|---|
| Overview | |
| Manufacturer | Cadillac |
| Production | 2023-present |
| Layout | |
| Configuration | 90° V8 |
| Displacement | 5.5 litres (336 cubic inches) |
| Cylinder block material | Aluminium alloy |
| Cylinder head material | Aluminium alloy |
| Valvetrain | 32-valve (four-valves per cylinder), DOHC |
| RPM range | |
| Max. engine speed | 8,800 |
| Combustion | |
| Fuel system | Gasoline direct injection |
| Management | Bosch Motronic MS7 ECU |
| Fuel type | TotalEnergies (WEC) VP Racing Fuels (IMSA) |
| Oil system | Dry sump |
| Output | |
| Power output | 670 hp (500 kW; 679 PS) |
| Dimensions | |
| Length | 25.2 in (640 mm) |
| Dry weight | 396.8 lb (180 kg) |
The Cadillac LMC55R engine is a naturally aspirated, four-stroke, 5.5-liter, V8 racing engine, made by GM Racing and Performance Center team for use in their Cadillac V-Series.R LMDh race car, since 2023.[1][2]
Design
[edit]Cadillac developed the bespoke cross-plane engine for their 2023 Cadillac V-Series.R and is the only naturally aspirated engine of the LMDh manufacturers.[3][4] In accordance with the LMDh rules, the LMC55R internal combustion engine is connected to the standardized hybrid drivetrain components provided by Bosch (motor generator unit), Williams Advanced Engineering (battery pack), and an Xtrac P1359 gearbox.[5][6]
Applications
[edit]References
[edit]- ^ Perkins, Chris (July 28, 2023). "Cadillac's Big Naturally Aspirated Race V-8 Is a Monster In a World of Small Turbo Engines". Road & Track. Retrieved April 18, 2025.
- ^ "V-SERIES.R RACE CAR". www.cadillac.com. Archived from the original on April 9, 2025. Retrieved April 18, 2025.
- ^ Lopez, Jonathan (August 13, 2023). "Here's A Look At The Cadillac LMC55.R V8 Engine". Retrieved April 18, 2025.
- ^ "Wayne Taylor Racing". waynetaylorracing.com. Archived from the original on January 16, 2025. Retrieved April 18, 2025.
- ^ Newbold, James (December 18, 2022). "Inside the spec hybrid spine of LMDh cars". Archived from the original on January 14, 2025. Retrieved April 18, 2025.
- ^ Goodwin, Graham (July 8, 2022). "Cadillac Shake Down New LMDh Racer". www.dailysportscar.com. Retrieved April 18, 2025.