Nissan HR12DDR

Nissan HR12DDR engineThe Nissan HR12DDR is a 1.2 l (1,198 cc, 73.11 cu-in) straight three, four-stroke supercharged internal combustion gasoline engine from Nissan HR family, manufactured by Aichi Machine Industry.

The HR12DDR is a direct-injected (Direct Injection Gasoline system or DIG), supercharged engine. The engine used the Miller cycle in witch intake valve is open even during the compression stroke. This engine is also equipped with Continuous Variable Valve Timing Control System (CVTCS), variable capacity oil pump and electronic, distributor less type ignition system with individual ignition coil for each cylinder. It has a cast aluminum engine block with four main bearings and aluminum DOHC (dual overhead camshaft) cylinder head with 4 valves per cylinder.

The cylinder bore is 78.0 mm (3.07 in) and the piston stroke is 83.6 mm (3.29 in), compression ratio rating is 12:1 or 13:1. The Nissan HR12DDR produced 98 PS (72 kW; 97 HP) at 5,600 rpm of horsepower and 143 Nm (14.6 kg·m; 105.5 ft·lb) at 4,400 rpm of torque.

The breakdown of the engine code is as follows:

  • HR – Engine Family
  • 12 – 1.2 Liter Displacement
  • D – DOHC (Dual Overhead Camshafts)
  • D – Direct Cylinder Fuel Injection
  • R – Supercharged

General information

Engine Specifications
Engine codeHR12DDR
LayoutFour stroke, Inline-3 (Straight-3)
Fuel typeGasoline
Displacement1.2 L, 1,198 cm3 (73.11 cu in)
Fuel systemDirect Injection Gasoline, DIG
Power adderSupercharger
Power output98 PS (72 KW; 97 HP) at 5,600 rpm
Torque output143 Nm (14.6 kg·m; 105.5 ft·lb) at 4,400 rpm
Firing order1-3-2
Dimensions (L x H x W):

Cylinder block

The HR12DDR engine used hydrogen-free diamond-like carbon-coated valve lifters and piston rings and sodium-filled exhaust valves.

Cylinder block
Cylinder block alloyAluminum
Compression ratio:12:1 or 13:1
Cylinder bore:78.0 mm (3.07 in)
Piston stroke:83.6 mm (3.29 in)

Cylinder head

Cylinder head
Cylinder head alloyAluminum
Valve Arrangement:DOHC, chain drive
Valves:12 (4 valves per cylinder)
Intake valves diameter:26.0 mm (1.02 in)
Exhaust valves diameter:30.0 mm (1.18 in)

Maintenance data

Oil system
Oil consumption , L/1000 km (qt. per miles)up to 0.5 (1 qt. per 1200 miles)
Recommended engine oil5W-30
Oil type APISL, SM or SN
Engine oil capacity (Refill capacity) With filter change 4.1 l
Without filter change 3.9
Oil change interval, km (miles)5,000-10,000 (3,000-6,000)
Ignition system
Spark plugDENSO: VFXEH20
Spark plug gap1.1 mm (0.043 in)

Vehicle applications

ModelYears Produced
Nissan Micra2010
Nissan Note2012
Author: Sergei Wers
About: Co-founder and CEO of a multi-brand auto repair shop (engine repair, chassis repair, body repair and painting) for over 15 years. I have been developing internet sites with technical specifications for more than seven years.

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