Honda JNC1 engine

The Honda JNC1 engine is a bespoke 3.5-liter, twin-turbocharged V6 engine, designed and produced by Honda for the second generation Honda NSX (NC1).^[1][2][3][4]

Honda JNC1 engine
The JNC1 on display at Honda Heritage Museum
Overview
Manufacturer	Honda
Production	2016–2022
Layout
Configuration	75°, V6 twin-turbo
Displacement	3.5 L; 213.2 cu in (3,493 cc)
Cylinder bore	91 mm (3.58 in)
Piston stroke	89.5 mm (3.52 in)
Cylinder block material	Aluminium
Cylinder head material	Aluminium
Valvetrain	24-valve (four-valves per cylinder), DOHC with VTC
Valvetrain drive system	Chain
Compression ratio	10.0:1
RPM range
Max. engine speed	7,500 rpm
Combustion
Turbocharger	single scroll
Fuel system	Gasoline direct injection
Fuel type	Gasoline hybrid
Oil system	Dry sump
Cooling system	Water-cooled
Output
Power output	507–522 hp (378–389 kW; 514–529 PS) @ 6,500-7,500 rpm
Specific power	145–149 hp (108–111 kW; 147–151 PS) per liter
Torque output	405–443 lb⋅ft (549–601 N⋅m) @ 2,000-6,000 rpm

Overview

The JNC1 engine is built in Honda's Anna Engine Plant in Anna, Ohio and takes around five hours to complete.^[5] The 75° cylinder angle gives the engine its unique design so that the engine stays below the level of the rear tires, lowering the center of gravity. Cosworth sandcasted the block and cylinder heads, while the pistons are cast aluminium.^[6]

The engine is mated to a 9-speed dual clutch transmission in the rear.^[7] There are three electric motors, two in the front and one in the rear. The Twin Motor Unit (TMU) is mounted on the front wheels providing 36 hp (36 PS; 27 kW) while the rear motor produces 47 hp (48 PS; 35 kW).^[8] The TMU features torque vectoring on the front wheels, creating a yaw moment during cornering by sending more torque to the outside wheel and less negative torque to the inside wheel. When exiting a corner, positive torque is applied for faster acceleration.^[8]

Applications

• Honda NSX (NC1)

See also

• List of Honda engines