Can the engine mounts of Heyue RS be replaced with other engines?
4 Answers
The engine mounts of Heyue RS cannot be replaced with other engines. Engine models used in Heyue RS: The 1.5L engine is the HFC4GB2.3c engine independently developed by JAC. The HFC4GB2.3c gasoline engine is a 1.5L all-aluminum VVT gasoline engine independently developed by JAC Motors. This engine adopts new materials such as aluminum alloy cylinder block, plastic intake manifold, stainless steel exhaust manifold, plastic cylinder head cover, and aluminum alloy chain cover. It employs advanced technologies like variable valve timing (VVT), double overhead camshaft, 16 valves, timing chain drive, and integrated oil pump. New processes such as connecting rod fracture splitting and friction welding of plastic intake manifolds are also used, effectively improving the engine's power and fuel economy while reducing emissions and noise. The power per liter reaches 55.4kw/L, and the torque per liter reaches 97.4Nm/L, meeting China IV emissions standards with the potential for China V. The 1.8L engine is the 4G93D engine from Mitsubishi Dongan in Japan. It delivers strong power at low RPMs but weakens at high RPMs. Reasons for increased engine noise: 1. Coolant temperature: If the engine noise is loud, it could be due to high coolant temperature. Check if the coolant temperature gauge is normal and if there is any smoke coming from the engine compartment. Be sure to replace the coolant before winter. 2. Engine oil: If the vehicle's engine oil viscosity is too high, it can lead to operational issues in the engine, reducing lubrication effectiveness and causing increased engine noise.
Installing a different engine in the JAC Heyue RS is feasible, but requires comprehensive consideration. As someone who frequently tinkers with cars, I recall helping a friend modify a similar vehicle last time. The key lies in the engine mounts, which secure the engine to the chassis frame. If swapping to another engine, you must ensure the brackets can withstand the new engine's weight, vibrations, and dimensional differences—otherwise, the car may experience severe shaking during operation, potentially damaging the frame over time. It's best to consult a professional tuning shop for measurements; they use laser scanning to compare original data with target engine parameters. If mismatched, custom brackets or welding reinforcements may be needed, which can be costly. Post-modification, vibration and noise levels must be tested, as driving without these checks is unsafe. Don’t overlook emission regulations either—unauthorized engine modifications are illegal in many regions and require certification agency approval. In short, the potential is significant, but risks are high, so beginners should not attempt this lightly.
From my perspective with over two decades of car experience, replacing engine mounts requires careful handling. Swapping in a different engine might sound cool, but the brackets must be precisely aligned—otherwise, it's like forcing a large iron block into a small box, leading to resonance, strange noises, or even fractures. I recommend first checking the factory data of the Heyue RS and comparing it with the target engine's parameters, such as weight distribution and mounting point positions. If the differences are too significant, don't force it—it's easy to waste money. A reputable modification shop will use simulation software for testing, which is more reliable. I remember my neighbor forced a modification, and the bracket cracked, resulting in the entire car being scrapped. Cost-wise, basic bracket modifications may only cost a few hundred yuan, but a full engine transplant project could run into tens of thousands. Also, regularly check for loose screws to prevent accidents. Safety comes first—prioritize factory-approved upgrade options.
As a modification enthusiast, I'm passionate about enhancing car performance. Swapping another engine into the HeYue RS is absolutely possible, with the key being proper engine mount calibration. The brackets must support the new engine's power output and vibration frequency. After selecting the right engine model, evaluate compatibility - minor differences only require slight mount point adjustments, while larger gaps necessitate custom or 3D-printed brackets. I've successfully transplanted a Japanese engine into a domestic car by reinforcing mounts, achieving smoother acceleration. However, pay attention to sealing and cooling systems, requiring professional road tests post-modification. Costs are controllable, with some shops offering complete packages. The process is exciting, but never overlook safety details.
