
WEY engine is the model 4C20NT engine. This 2.0T engine is similar to the 2.0T engine model installed on the Haval H6, and the maximum horsepower is also 197 horsepower. The 2.0T gasoline turbocharged direct injection engine adopts turbocharging, direct injection and dual VVT technology. WEY refers to China's luxury SUV brand, and its products include VV7, VV6, VV5 and VV7 PHEV new energy series models. Among them, VV7 leads the industry with a brand-new design and 40 configuration upgrades, further strengthening its positioning as China's luxury SUV strength. The newly upgraded 12.3-inch multimedia display of VV7 enhances the intelligent interactive experience with a clearer and larger screen, and the AI intelligent facial recognition brings world-leading intelligent technology to Chinese users.

WEY uses gasoline engines independently developed by Great Wall. The current main models are the 1.5T and 2.0T turbocharged engines, both installed in their popular SUVs like the VV5 and VV7. I've driven my friend's VV6, and that 2.0T engine is indeed powerful, with noticeable acceleration when overtaking on the highway. The engine compartment layout is quite tidy, and the mechanic mentioned during maintenance that this engine uses direct fuel injection technology, with decent fuel consumption control. However, it's a bit noisy during cold starts, but it smooths out once the temperature rises. Great Wall has calibrated this engine for comfort, handling turbo lag well during sudden acceleration, making it suitable for daily family use. If you frequently drive on mountain roads, the 2.0T version is recommended for its stronger low-end torque.

The WEY brand's engine is Great Wall's self-developed turbocharged engine. Last year, I carefully reviewed the technical specifications at the 4S store. The current third-generation 1.5GDIT model stands out most for its 350bar high-pressure injection system—the higher the fuel injector pressure, the better the atomization effect, naturally leading to higher combustion efficiency. During the test drive, I specifically observed the tachometer; it reaches peak torque at just 1500 RPM, making it particularly responsive for city driving. The engine also features variable valve lift technology, and you can feel excellent vibration suppression from the chassis when driving on the highway. As for drawbacks, engine noise becomes noticeably audible inside the cabin during aggressive driving, but switching to quieter tires can solve this. Overall, this domestic engine's technological sophistication has already caught up with joint-venture brands.

WEY vehicles are equipped with gasoline engines developed by Great Wall themselves, currently with two main models. The 1.5T is installed in entry-level models, adequate for daily driving but don't expect too much power. The 2.0T is the essence, especially in the Mocha PHEV hybrid version, where the engine and motor cooperate seamlessly. I once took a long trip, and the engine intervention was almost imperceptible, with fast charging efficiency. Technically, it uses a Miller cycle design, with an exceptionally wide high thermal efficiency range. The manufacturer claims a thermal efficiency of 38.3%, ranking among the top in domestic models. Maintenance costs are also low, with an oil and filter change costing just a few hundred yuan.

Speaking of WEY's engines, they are actually the result of Great Wall Motors' years of technological accumulation. The 2.0T engine most commonly installed in the VV series—I've disassembled its cylinder block, and the aluminum alloy material significantly reduces weight. The crankshaft uses a forging process, allowing it to withstand higher RPMs. The design is quite thoughtful, with a silent-tooth timing chain that makes the cold-start clicking much quieter than in older models. I drove a friend's newly purchased Blue Mountain, and the newly tuned 2.0T paired with the 9DCT transmission shows a big improvement in shift smoothness. In terms of technical highlights, the EGR exhaust gas recirculation system is quite mature, easily meeting China VI-B emissions standards. The only downside is the noticeable power drop in high-altitude areas, which isn't as good as German cars.


