Hart 415T engine
| Hart 415T | |
|---|---|
| Hart 415T in a Lola THL1 | |
| Overview | |
| Manufacturer | Hart | 
| Production | 1981–1985 | 
| Layout | |
| Configuration | L4 | 
| Displacement | 1.5 L (1,496 cc) | 
| Cylinder bore | 88 mm (3.5 in) | 
| Piston stroke | 61.55 mm (2.4 in) | 
| Valvetrain | 16-valve, DOHC, four-valves per cylinder | 
| Compression ratio | 6.7:1 | 
| Combustion | |
| Turbocharger | KKK (later Holset) | 
| Fuel system | Direct fuel injection | 
| Fuel type | Gasoline | 
| Cooling system | Water-cooled | 
| Output | |
| Power output | 540–750 hp (403–559 kW; 547–760 PS) | 
| Torque output | 380–480 lb⋅ft (515–651 N⋅m) | 
| Dimensions | |
| Dry weight | 140 kg (310 lb) | 
The Hart 415T is a four-stroke, 1.5-litre, turbocharged, inline four-cylinder racing Internal combustion engine, designed, developed and tuned by Brian Hart of Hart Racing Engines, for use in Formula One racing and competition, between 1981 and 1986.