Which engine is more mature, Haifuxing or Southeast v3 Ling Rui?

Haifuxing is equipped with 4G 18 engine, which is small in size, light in weight, high in power per unit weight, high in reinforcement and low in fuel consumption. Moreover, the engine obtains a large torque at low speed, and it can output 90% torque at 2500-3000 rpm, which is very suitable for urban road conditions. Lower speed means less fuel consumption. The 4G 18 engine is economical and energy-saving. Coupled with the lightweight and self-weight of Haifuxing, if the driving habits are not too rough, the fuel consumption of 6L/ 100KM in the urban area is still easy to achieve. The advanced design of 4A9 1 engine is embodied in the following aspects:

1 DOHC and MIVEC variable valve timing technology for double overhead camshafts

4A9 1 adopts MIVEC technology, which can not only optimize the valve opening time and phase, but also change the valve opening stroke, improve the air intake, and achieve low fuel consumption, low emission and high performance in a wide speed range. This technology is superior to Honda.

2. Aluminum-magnesium alloy die-casting cylinder block: Mitsubishi

3. Resin intake manifold and rocker cover, and inverted exhaust manifold: Most traditional engines use aluminum or cast iron intake manifold with front exhaust manifold. With this design, 4A9 1 can reduce weight, fuel consumption and cost. However, there may be insufficient air intake at low speed, which needs to be compensated by careful design and adjustment. 4A9 1 solves this problem well.

4. Timing chain drive: In order to reduce production costs, most old engines use timing belts. The belt and tensioner must be replaced every tens of thousands of kilometers. Under normal use, the life of the timing chain can reach hundreds of thousands of kilometers, and it is not necessary to replace the timing chain until the engine is scrapped. This alone can reduce the use cost of users' whole life cycle by 5000~ 10000 yuan!

5. Electronic throttle: 4G 1 series

6. Independent ignition device: 4G 1 Engine uses group ignition, and two ignition coils control two cylinders respectively. 4A9 1 adopts independent ignition, and each cylinder has an independent ignition coil. Ignition energy will be higher, ignition time control will be more accurate, and combustion will be more thorough.

Wait a minute. . . . .

To sum up, Hai Fuxing is better.