ENJOMOR GS-L4 RC Model Engine FAQ: Everything You Need to Know | Stirlingkit

Got questions about the incredible ENJOMOR GS-L4 RC model engine? You've come to the right place! Dive into Stirlingkit's ultimate FAQ to explore everything you need to know about this high-performance 32cc four-stroke DOHC inline four-cylinder powerhouse.

Product Features

Q: What kind of product is the ENJOMOR GS-L4 model? What role does it play in RC models? What are its main differences and advantages compared to real car engines?

A: The GS-L4 is a highly simulated 32cc 4-stroke dual overhead camshaft (DOHC) inline 4-cylinder model engine designed for RC model enthusiasts who pursue the ultimate simulation experience. It strives to reproduce the charm of a real car engine at the model level through its precise mechanical structure and operation mode. Please note that ENJOMOR GS-L4 model engine is very different from the real car engine in terms of size, power output, material selection, manufacturing accuracy and application scenarios, and focuses more on simulation and display. Its main advantages are its high degree of simulation, the visual and auditory experience brought by its precise mechanical structure, and its value as a display and learning tool for mechanical principles.

Q: What fuel does ENJOMOR GS-L4 model engine use? Are there any special requirements for the octane number or other components of the fuel? What happens if the wrong fuel is used?

A: This engine recommends the use of 92 or higher unleaded gasoline. High-octane gasoline helps improve anti-knock performance and is theoretically more beneficial to the engine. We do not recommend the use of gasoline with too high an ethanol content, as ethanol may corrode certain rubber and plastic parts of the model engine. Incorrect use of fuel may cause difficulty in starting the engine, poor operation, increased carbon deposits, and even damage to internal components. Please be sure to use it according to the recommendations in the manual.

Q: What type of engine oil is required for the GS-L4 model? What effect does the viscosity grade and composition of the engine oil have on engine performance and life? What happens if the engine oil is filled too much or too little?

A: It is recommended to use a 0-20W four-stroke engine oil. This viscosity grade provides good lubrication within the operating temperature range of the model engine. It is recommended to choose a high-quality synthetic engine oil to provide better anti-wear protection and high-temperature stability. Please strictly follow the instructions for the amount of oil to be filled (50mL). Too much oil may cause problems such as increased operating resistance and smoke, while too little oil may cause insufficient lubrication and increased wear of parts, and in severe cases, damage to the engine.

Q: How does ENJOMOR GS-L4 model start? How does the electric start system work? If the start fails, what should I check?

A: This model engine GS-L4 uses a built-in brushless motor to drive the crankshaft to rotate, and cooperates with the CDI (capacitor discharge ignition) system to ignite the mixture in the cylinder to achieve electric start. When starting, the brushless motor requires a large current drive, and the CDI system provides precise ignition timing. If the start fails, first check whether the voltage of the power supply battery is sufficient (CDI: 10-12V, starter motor: 24-48V), whether the battery connection is reliable, and whether the fuse is blown. Secondly, check whether the fuel supply is normal and whether the oil circuit is blocked. Thirdly, check the ignition system, such as whether the spark plug is wet or has serious carbon deposits. Finally, if the starter motor does not run, it may be a motor or ESC failure.

Q: After purchasing the GS-L4, does the package contain other accessories or tools besides the engine body and the manual? For example, a spark plug wrench, oil can, etc.?

A: The package mainly contains an ENJOMOR GS-L4 engine model (with a pre-installed bracket and 4 ME8 spark plugs) and a paper instruction manual. Usually, no additional accessories or tools are included, such as a spark plug wrench, oil can, etc., which you may need to prepare on your own. It is recommended that you read the manual carefully before first use to understand the required tools and consumables.

Q: Where is ENJOMOR GS-L4 model engine usually installed in the RC model? Is the installation process complicated? Are there any special requirements for the model frame?

A: This engine is usually installed in the power compartment of the RC model car, and the specific location depends on the design of the model. The installation process is relatively straight-forward, and it is fixed to the model frame through the bracket at the bottom. The main requirements for the model frame are that there must be enough space to accommodate the size of the engine and the necessary accessories (such as the water tank, radiator), and that it can withstand the vibration and torque when the engine is running. It is recommended that you carefully measure the size of the model frame before purchasing and refer to the installation drawing of the engine.

Q: Is the running noise of GS-L4 loud? Is there a silencer?

If there is a requirement for noise, is there a solution? A: As an internal combustion engine model, the engine will produce a certain amount of noise when running, similar to the sound of a small gasoline engine. It is usually not equipped with a silencer. If there is a high requirement for noise, some model enthusiasts may try to modify or install a silencer by themselves, but this requires certain professional knowledge and hands-on ability, and may affect the performance of the engine.

Q: What is the fuel consumption of ENJOMOR GS-L4 model engine? How long can a tank of oil run?

A: Since GS-L4 is used for RC models, the fuel tank capacity is usually small, and the fuel consumption is affected by many factors such as operating intensity and load, so it is difficult to give an exact running time. Generally speaking, the fuel consumption of model engines is relatively low, and a small tank of oil can usually maintain a running time of several minutes to more than ten minutes. You can make an estimate based on the fuel tank capacity of your model and the actual running conditions.

Performance Questions

Q: What is the maximum speed of 12,000 rpm in the field of model engines? Does the high speed affect the durability of the engine?

A: 12,000 rpm is a relatively high speed level in the field of model four-stroke engines, which requires precision internal components and a good lubrication system to support. In theory, long-term operation at high speed will have a certain impact on the durability of the engine, but as long as the maintenance and care recommended in the manual are carried out and high-quality engine oil and fuel are used, the service life of the model can be maximized.

Q: What kind of performance experience can the power output of 1.8kW bring to the RC model? For example, the top speed, acceleration performance, etc.?

A: For most 1:8 or 1:10 scale RC model cars, the power output of 1.8kW can provide quite good power performance, such as satisfactory acceleration and a high top speed. The specific performance will also be affected by factors such as the weight, aerodynamic design, gear ratio, etc. of the model car.

Q: How does the water cooling system work? Do I need to change the coolant regularly? What problems will occur if the cooling system fails?

A: The water cooling system of GS-L4 circulates coolant through a water pump, bringing the heat generated by the engine to the radiator to dissipate, thereby maintaining its normal operating temperature. The coolant will age after a period of use, and may produce scale or impurities, affecting the heat dissipation effect, so it needs to be replaced regularly. Please refer to the manual for the specific replacement cycle. If the cooling system fails, such as coolant leakage, water pump failure, radiator blockage, etc., it will cause the engine to overheat, and in severe cases, damage the internal components.

Q: What is the difference between an independent oil pump lubrication system and traditional mixed lubrication? What are its advantages? Do I need to change the lubricant regularly?

A: The main difference between the independent oil pump lubrication system used by GS-L4 and traditional mixed lubrication (mixed oil in fuel) is that it delivers the oil directly to the parts that need lubrication through the oil pump, achieving more precise and reliable lubrication. Its main advantages are better lubrication, reduced carbon deposits, and longer engine life. Yes, the independent lubrication system still requires regular oil changes to ensure the cleanliness and lubrication performance of the oil. Please refer to the manual for the replacement cycle.

Q: Why does this small model engine have three piston rings? What is the connection with the design concept of the real car engine?

A: The three piston rings (two compression rings and one oil ring) are designed based on the design concept of a real high-performance four-stroke engine. The main function of the compression ring is to seal the combustion chamber, prevent gas leakage, and ensure the compression ratio and power output of the engine; the oil ring is responsible for scraping off excess oil on the cylinder wall to prevent oil from entering the combustion chamber and burning, reducing smoke and carbon deposits. The design of three piston rings can provide better sealing performance and better oil control.

Q: How is the exhaust of GS-L4 discharged? Is it necessary to install an exhaust pipe? Does the exhaust contain harmful substances?

A: The exhaust of ENJOMOR GS-L4 model engine is discharged through the exhaust port on the cylinder head. Usually, an exhaust pipe needs to be installed to guide the exhaust gas away from the model body, which may have a certain impact on the exhaust sound. The combustion of gasoline in an internal combustion engine will produce harmful substances such as carbon monoxide and hydrocarbons. Although the emission is much smaller than that of a real car, it is still necessary to pay attention to ventilation when using it in a closed environment.

Q: ENJOMOR GS-L4 model was originally designed for model cars. Can it be used for other types of RC models? For example, ship models or aircraft?

A: The GS-L4 was originally designed for RC model cars. If you want to use it for other types of RC models (such as ship models or aircraft), you need to do a lot of evaluation and modification, including but not limited to power output characteristic matching, cooling system adjustment, installation method adaptation, etc. Because the operating environment and load characteristics of different types of models vary greatly, please be careful and take the modification risk at your own risk. Some users have proposed using it for creative applications such as electric bicycles and lawn mowers, but this requires more professional engineering knowledge and practice. There is currently no official modification plan for this.

Maintenance and maintenance issues

Q: How to properly add and change the oil for the GS-L4? What details need to be paid attention to?

A: When adding oil, please find the oil filling port on the engine and use a clean oil pot to slowly inject the recommended type and amount of oil (usually 50mL). When changing the oil, you need to find the drain port first, drain the old oil, and then refill it with new oil. Be careful not to mix impurities and ensure the filling amount is accurate. It is recommended to operate after the engine is cooled to avoid burns.

Q: How to correctly add and replace coolant for GS-L4? What details need to be paid attention to?

A: When adding coolant, please find the coolant filling port, slowly inject the recommended coolant, and pay attention to the liquid level. During the injection process, you can gently shake the model or squeeze the coolant line to help expel the air in the system. When replacing the coolant, you need to drain the old coolant first and then refill it with new coolant. Make sure there are no bubbles in the cooling system and use coolant that is compatible with the engine.

Q: In addition to checking the oil level and changing the oil, what other regular maintenance work do I need to do? What is the frequency?

1. A: Regular maintenance work also includes:
   Check the spark plug: Remove the spark plug regularly, check whether the electrode has carbon deposits, ablation or damage, and check whether the electrode gap is within the normal range. It is recommended to check it every few hours of operation and clean or replace it if necessary.
   Clean the outside of the engine: Keeping the outside of the engine clean can help dissipate heat and detect potential leaks in time.
   Check the cooling system lines: Regularly check the coolant lines for aging, cracks or leaks.
   Check the starting system: Make sure the connection between the starter motor and the CDI system is reliable. Please refer to the manual for the specific maintenance frequency, which is usually recommended based on the running time and intensity.
   

Q: What will happen to the GS-L4 if I accidentally use the wrong oil or coolant? What should I do?

A: Using the wrong oil or coolant may cause serious damage to the engine. For example, the wrong oil viscosity may cause poor lubrication, and the wrong coolant may corrode internal components or affect the heat dissipation effect. If you accidentally use the wrong oil, please stop running the model immediately and replace it with the correct oil as soon as possible. If you suspect that the engine has been damaged, it is recommended to contact our technical support for evaluation.

Troubleshooting questions

Q: My GS-L4 is difficult to start. In addition to battery and fuel problems, what are some other common reasons? How should I further investigate?

1. A: In addition to low battery and fuel supply problems, common causes of starting difficulties include:
   Spark plug failure: Carbon deposits, moisture or damage to the spark plug may cause poor ignition. You can try to clean or replace the spark plug.
   CDI system failure: The CDI unit itself may be faulty and unable to provide a normal ignition signal.
   Starter motor failure: The starter motor may be stuck or damaged.
   Insufficient cylinder compression: Poor piston ring or valve sealing may cause insufficient cylinder compression, affecting starting. Further investigation requires step-by-step inspection of the status of the ignition system, fuel system and mechanical components.

Q: Why does my GS-L4 smoke when running? What are the specific reasons for different colors of smoke? How should I deal with it?

1. A:
   Blue smoke: It may be caused by worn piston rings, aging valve oil seals, scratched cylinder walls or excessive oil filling causing oil to enter the combustion chamber. The condition of the sealing parts inside the engine needs to be checked, and repairs may be required in severe cases.
   White smoke: If it is a small amount of white smoke during cold start, it may be water vapor, which is a normal phenomenon. If white smoke continues to be emitted, it may be that there is water in the fuel, or more seriously, the cylinder gasket is damaged and the coolant leaks into the combustion chamber. The fuel needs to be replaced or the cylinder gasket needs to be checked.
   Black smoke: Usually the mixture is too rich, which may be due to improper carburetor adjustment, clogged air filter or excessive fuel pressure. The carburetor needs to be adjusted, the air filter needs to be cleaned or the fuel system needs to be checked. The treatment method needs to be carried out according to the specific cause. If it is serious, it is recommended to contact technical support.
   

Q: My GS-L4 makes abnormal noises when running. How should I judge what the problem is? Which abnormal noises are more dangerous?

A: To judge the abnormal noise, you need to listen carefully to the source and type of the sound:

• Knocking sound: It may come from piston knocking, connecting rod bearing wear, etc., which is usually more dangerous.
• Sharp whistling sound: It may come from bearing failure or loose belt (if applicable).
• Hissing sound: It may come from exhaust leakage or cooling system leakage.
• Irregular clicking noise: It may come from an abnormal valve mechanism. Any abnormal, continuous or gradually increasing noise may indicate a potential mechanical failure and should be stopped and checked immediately.
  

Q: My GS-L4 temperature is too high. In addition to insufficient coolant, what other possible reasons are there? How should I eliminate them step by step?

A: In addition to insufficient coolant, possible reasons for the engine to be too high include:

• Cooling system blockage: The radiator or coolant pipes may be blocked by foreign objects, affecting the coolant circulation.
• Water pump failure: The water pump cannot work properly, resulting in poor coolant circulation.
• Poor heat dissipation: The radiator surface is covered with dust, or the model body design causes poor heat dissipation.
• Internal engine failure: Increased friction or abnormal combustion may also cause overheating. Troubleshooting methods include checking the coolant level, checking whether the radiator and pipes are blocked, checking whether the water pump is working, and ensuring good heat dissipation.
  

Modification and Upgrade

Q: Regarding the turbocharger kit for GS-L4, what additional adjustments or maintenance are required after installation? Will it affect the life of the engine? What parts does the kit include? What are the materials? Do I need additional tools to install?Is the increase noticeable? Will it make a sound?

A: Yes, we have a turbocharger kit designed specifically for GS-L4, which includes the turbocharger body and is made of metal. After installation, it may be necessary to adjust the fuel supply system (such as increasing fuel pressure or replacing the carburetor), and pay close attention to the lubrication of the turbocharger to ensure that the oil circuit is connected correctly (oil inlet is on the top, oil return is on the bottom). Proper installation and maintenance will not significantly affect the engine life in theory, but incorrect operation may cause damage. Please refer to the kit manual for additional tools required for installation. The actual performance improvement may be limited, and it is more of a visual upgrade. Actual testing is recommended. According to current feedback, the turbocharger may not make obvious spooling or pressure relief valve sounds.

Q: I want to modify the independent throttle body (ITB) on this ENJOMOR L4 engine. How much do you think the performance improvement of the model engine will be? How difficult is the modification?

A: The purpose of modifying the independent throttle body (ITB) is to improve the engine's intake efficiency and throttle response speed, especially at high speeds. For model engines, due to their size limitations, it is difficult to achieve a high-performance ITB structure, and the performance improvement may not be as obvious as that of real cars. Modification is difficult and requires customized parts and precise tuning.

Q: Regarding the modification of the exhaust system, I want to modify a four-into-one equal-length exhaust or a specific style exhaust pipe on this GS-L4 model. Do you think it will have a significant impact on the engine performance?

A: The main purpose of modifying the exhaust system is to improve the exhaust efficiency of the engine, thereby increasing power output and changing the sound characteristics of the exhaust. The design of the equal-length exhaust manifold can optimize the exhaust pulse and improve the performance of the engine at high speeds. Modifying the exhaust system may have a certain impact on the performance of the engine, but the specific effect depends on the level of design and production.

Q: I want to increase the flywheel mass to reduce the idle speed. Is this method feasible? Will it affect other engine performance?

A: Increasing the flywheel mass can increase the engine's rotational inertia, which helps to stabilize low-speed operation and thus reduce the idle speed. This method is theoretically feasible. However, increasing the flywheel mass will also increase the overall weight of the model and may affect the acceleration response of the engine.

Q: If I make some unofficial modifications to the GS-L4, will it affect the after-sales warranty?

A: Yes, unofficial modifications to ENJOMOR GS-L4 model will affect your after-sales warranty rights. Please read the warranty terms carefully before making any modifications, or consult our customer service.

Q: Will ENJOMOR GS-L4 model engine adopt VTEC technology in the future?

A: "VTEC (Variable Valve Timing and Lift Electronic Control System)" is a complex technology of Japanese cars. It is a huge challenge in both technology and cost to implement a similar mechanism on such a small-sized model engine. There is currently no official news about the model engine adopting similar technology in the future. The design of the model engine focuses more on achieving realistic structure and basic internal combustion engine principles within a limited size.

Q: How to reduce the idle speed of the model engine?

A: You can try to increase the flywheel mass or use an electronic speed limiter. The principle is similar to that of a real car, but the model is more sensitive to component accuracy.

Q: Can the design of the oil temperature gauge of the model engine be improved?

A: Please pay attention to the official announcement for whether it will be improved in the future.

Q: How to improve the exhaust sound of the model engine?

A: You can try to modify the exhaust system, such as a four-in-one equal-length exhaust or a specific style exhaust pipe.

Q: Does it make sense to modify the independent throttle valve for the model engine?

A: In theory, it can improve the throttle response, but it requires professional modification and adjustment.

Q: How to solve the problem of oil leakage in the model engine?

A: Check the crankcase ventilation and consider adding oil seals to the valve stem.

Q: Will the manufacturer improve the manufacturing quality of the product?

A: We are always committed to improving product quality, and user feedback is very important to us. We will listen carefully to user opinions and take them into consideration in future product improvements. Please email Stirlingkit's customer service team directly (service@stirlingkit.com).

Purchase and after-sales

Q: Where can I buy this ENJOMOR GS-L4 model engine? Is there a discount if I buy it now?

A: You can buy it through our official sales platform. Buying now (November) can enjoy an automatic discount of $100 and give 4 spark plugs. Please note the validity period of the discount.

Q: How long can I wait for the delivery after payment?

A: We will arrange shipment within 1 working day after your payment.

Q: If I have more in-depth questions about the performance or parameters of GS-L4, which department should I consult?

A: If you have more in-depth questions about the performance or parameters of the model engine, it is recommended that you contact our technical support team directly by email: service@stirlingkit.com. They will provide you with more professional technical answers.

Q: If the GS-L4 I received has quality problems, or there is a non-human damage failure during use, what is the after-sales process?

A: If the model you received has quality problems or there is a non-human damage failure during use, please contact our customer service team in time and provide a detailed description of the problem and proof of purchase. We will handle it in accordance with the after-sales service policy, and you may need to provide pictures or videos so that we can judge the problem, and provide solutions such as repair and replacement according to the specific situation. Our customer service email is: service@stirlingkit.com.