Overview of Nissan HR12DE and HR12DDR engines
The ICE (internal combustion engine) Nissan HR12DE was released in 2010 by the well-known company Nissan Motors. By type of engine, it differs as in-line and has 3 cylinders and 12 valves. The volume of this engine is 1,2 liters. In the piston system, the piston diameter is 78 millimeters and its stroke is 83,6 millimeters. The fuel injection system is installed Double Over Head Camshaft (DOHC).
Such a system predetermines the installation of two camshafts in the cylinder head (cylinder head). Such engine manufacturing technologies made it possible to achieve a fairly strong noise reduction and obtain a power of 79 horsepower, as well as a torque of 108 Nm. The engine has a fairly light weight: 60 kilograms (bare engine weight).
Nissan HR12DE engine
Installed on the following car models:
- Nissan March, restyling. Year of issue 2010-2013;
- Nissan Note, restyling. Year of issue 2012-2016;
- Nissan Latio, restyling. Year of issue 2012-2016;
- Nissan Serena. Year of release 2016.
Maintainability
This engine turned out to be quite torquey, in the gas distribution mechanism, instead of a belt, the manufacturer installed a chain of increased wear resistance and it is almost impossible to get premature stretching on it. The timing system has a phase change system. An electronically controlled throttle is also installed. But one of the unpleasant drawbacks is that every 70-90 thousand kilometers, it becomes necessary to adjust the valve clearances, because the system does not provide for the installation of hydraulic lifters. This procedure does not take much time, but it is not so cheap.
Tuning
As a rule, the power of a regular engine may not be enough, so it is possible to improve its performance by electronic or mechanical tuning.
With electronic tuning, the so-called chipping is performed, but you should not expect a larger increase in power, about + 5% to engine power.
With mechanical tuning, respectively, there are more opportunities. For a good increase in power, you can put a turbine, change the exhaust manifold, put forward flow and cold air intake, so you can increase from 79 horsepower to 125-130.
Such improvements are the safest, further engine modifications, for example: cylinder boring, can lead to a loss of standard strength and component life.
Care
In order for the engine to serve for a long time and without fail, regular maintenance should be carried out, consumables should be changed in time, use the oil recommended by the manufacturer for this engine model, and also change it in time.
The Nissan HR12DDR engine was also released in 2010, in general it is a modernized HR 12 DE. The working volume has not changed, just remained 1,2 liters. Of the modernization, it should be noted the installation of a turbocharger, fuel consumption was also reduced, and excess pressure in the cylinders was eliminated. Such modifications made it possible to increase power to 98 horsepower and obtain a torque of 142 Nm. The main parameters have not changed.
| Engine make | HR12DE |
|---|---|
| Volume, cc | 1.2 l. |
| Gas distribution system | DOHC, 12-valve, 2 camshaft |
| Power, hp (kW) at rpm | 79 (58) to 6000 |
| Torque, kg * m (N * m) at rpm. | 106 (11) to 4400 |
| engine's type | 3-cylinder, 12-valve, DOHC, liquid-cooled |
| Fuel used | Petrol Regular (AI-92, AI-95) |
| Fuel consumption (combined mode) | 6,1 |
Nissan HR12DDR engine
Installed on the following car models:
- Nissan Micra. Year of release 2010;
- Nissan note. Year of release 2012-2016.
Maintainability
This engine was significantly improved during production and there are practically no breakdowns that occur for no apparent reason.
Tuning
Such an engine model can also be made more powerful by electronic and mechanical tuning, which were described above. But it is worth remembering the limits of the admissibility of such an upgrade. In case of radical changes, failure of the entire system is possible.
Care
In order not to have problems with this engine model, it is necessary to undergo full maintenance in a timely manner, change oil and consumables on time, and use high-quality fuel.
| Engine make | HR12DDR |
|---|---|
| Volume, cc | 1.2 l. |
| Gas distribution system | DOHC, 3-cylinder, 12-valve, 2 camshaft |
| Power, hp (kW) at rpm | 98 (72) to 5600 |
| Torque, kg * m (N * m) at rpm. | 142 (14) to 4400 |
| engine's type | 3-cylinder, 12-valve, DOHC, liquid-cooled |
| Fuel used | Petrol Regular (AI-92, AI-95) |
| Fuel consumption (combined mode) | 6,6 |
