FS-L400 14cc Inline 4 Cylinder 4 Stroke Nitro Engine DIY Assembly Kit
Hero Section: Build Your Own Mechanical Heart
There is a unique satisfaction that comes from watching a pile of precision metal parts transform into a roaring, breathing machine—and knowing you built it with your own hands. The FS-L400 isn't just an engine; it is a journey into the soul of mechanics. Whether you are an experienced RC builder looking for the ultimate upgrade or a father wanting to teach the intricacies of internal combustion to the next generation, this inline four-cylinder assembly kit offers an unparalleled challenge and the ultimate reward: the sound of that first successful ignition.
Why Choose the FS-L400 Assembly Kit?
- The Ultimate DIY Challenge: This arrives as a kit of precision components. It transforms the passive act of buying a model into an active, immersive experience. You become the engineer, understanding every bolt, piston, and valve.
- True-to-Life Realism: This is a miniaturized version of a real automotive engine. With a 180-degree crankshaft and a 1-3-4-2 ignition timing sequence, it produces a smooth, aggressive exhaust note that mimics a full-sized sports car.
- High-Performance Design: Unlike simple toys, this engine screams up to 13,500 RPM. The lightweight design ensures a high power-to-weight ratio, making it not just a display piece, but a beast ready to power 1:8 or 1:10 scale RC trucks, crawlers, or boats.
- A Gift of Patience and Skill: In a world of instant gratification, this kit requires focus and patience. It is the perfect gift to bond over, offering hours of shared construction time and a lifetime of bragging rights.
Technical Highlights: Engineering Excellence
- Quad-Carburetor System: The FS-L400 features four independent carburetors. This allows for incredibly precise tuning of the air-fuel mixture for each cylinder, resulting in sharper throttle response and more stable idling.
- Integrated Water Cooling: A built-in mechanical pump, driven directly by the crankshaft, circulates coolant through the engine block. This active cooling system allows the engine to run harder for longer without the risk of overheating.
- Long-Stroke Torque: The engine utilizes a long-stroke design (17.00mm stroke vs 16.60mm bore). In mechanical terms, this translates to higher torque at lower RPMs, providing the grunt needed to move heavy RC models.
- Dual Synchronous Pulleys: The timing belt system uses a dual-pulley structure to minimize the risk of "gear jumping" or belt slippage during high-speed runs, ensuring the valves stay perfectly in sync with the pistons.
Specifications
- Model: FS-L400
- Type: DIY Assembly Kit (Inline 4-Cylinder, 4-Stroke)
- Displacement: 14cc (3.5cc x 4)
- Bore: 16.60mm
- Stroke: 17.00mm
- RPM Range: 3,200 - 13,500 RPM
- Power Output: 3.05ps
- Dimensions: 121.05 x 43.67 x 90.00mm
- Weight: 980g (Engine only)
- Fuel Type: Nitro / Methanol based model fuel
- Material: Metal Alloy / Stainless Steel
Usage Scenario: The Garage Workshop
Picture a weekend afternoon. The parts are laid out on a clean mat. You and your building partner are following the schematics, installing the pistons, setting the timing belt, and adjusting the valve clearances. The air smells of machine oil. Finally, the assembly is complete. You hook up the fuel lines, apply the starter, and the engine roars to life—a steady, powerful hum that fills the room. That feeling of accomplishment? That is what the FS-L400 delivers.
Important Tips from the Workshop
- What You Need to Buy: Please note this is the Engine Kit Only. To run this engine, you will need to separately purchase an Electric Starter Kit, a Radiator/Cooling Fan, a Fuel Tank, and a Mounting Base.
- Assembly Required: This product comes as loose parts. It requires patience and basic mechanical aptitude to assemble. It is highly recommended to use thread locker (Loctite) on screws to prevent vibration from loosening them.
- Break-in is Crucial: Once assembled, do not rev to max RPM immediately. Run the engine rich at lower speeds for the first few tanks of fuel to allow the internal components to seat properly.
Customer Support
Building a 4-cylinder engine is a complex task, and we are here to help you succeed. If you need assembly guidance, missing part support, or tuning advice, please contact our expert team at service@helloworld7.com.
Delivery
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