Honda HR28TT engine
| Honda HR28TT engine | |
|---|---|
| Overview | |
| Manufacturer | Honda Performance Development |
| Production | 2011–2014 |
| Layout | |
| Configuration | V6, twin-turbocharged, 60° cylinder angle |
| Displacement | 2.8 L (2,799 cc) |
| Cylinder block material | Aluminium |
| Cylinder head material | Aluminium |
| Valvetrain | 24-valve (four-valves per cylinder), SOHC |
| Combustion | |
| Fuel system | Gasoline direct injection |
| Fuel type | IMSA: VP MS100 E10, 100-octane gasoline + 10% ethanol WEC: Elf LM24 E10, 101-octane gasoline + 10% ethanol |
| Oil system | Dry sump |
| Cooling system | mechanically water cooled |
| Output | |
| Power output | 450 hp (336 kW; 456 PS)–500 hp (373 kW; 507 PS) |
| Torque output | 519 N⋅m (383 lb⋅ft)–550 N⋅m (406 lb⋅ft) |
| Dimensions | |
| Dry weight | 170 kg (375 lb) |
| Chronology | |
| Predecessor | HPD LM-V8 |
| Successor | Honda HR35TT |
The Honda HR28TT engine is a twin-turbocharged, four-stroke, 2.8-liter, V6 racing engine, designed and produced by Honda Performance Development (HPD) for use in multiple Le Mans Prototype race cars, from 2011 to 2014.
Overview
The HR28TT was introduced in 2011, following the new cost-capped regulations for the LMP2 class.[1] It is derived from the production J35 family of engines found numerous Honda/Acura production vehicles, using 400 production engine parts, including the engine block and heads, crankshaft, direct-injection fuel system, valve train components, drive-by-wire hardware.[2] The engine also has turbo fresh air valve system, which eliminates turbo lag and provides improved reliability and performance.[3]
Applications
References
- ^ "Honda Engineering Team Honored". hondaracing-us.honda.com. January 11, 2013. Archived from the original on January 13, 2026. Retrieved January 12, 2026.
- ^ "HPD ARX-04b LMP2 Coupe Unveiled". Performance Racing Industry. April 10, 2014. Archived from the original on January 13, 2026. Retrieved January 13, 2026.
- ^ "ESM Purchases Pair of HPD ARX-04b Coupes for 2015". Sportscar365. May 3, 2014. Archived from the original on November 10, 2024. Retrieved January 13, 2026.