TOYAN FS-L400 14cc Inline 4 Cylinder 4 Stroke Nitro Engine DIY Assembly Kit
Hero Section: Build Your Own Mechanical Symphony
There is no sound quite like the aggressive, rhythmic purr of an inline four-cylinder engine. The TOYAN FS-L400 gives you the rare opportunity to build that sound from scratch. This isn't just a model; it is a masterclass in internal combustion engineering. Whether you are an RC veteran looking to power a 1:8 scale crawler with real horsepower, or a mechanical enthusiast seeking the ultimate desktop challenge, this DIY kit transforms a pile of precision metal parts into a roaring, breathing machine. It is the ultimate test of patience and skill, rewarding you with the visceral thrill of that first successful ignition.
Why Choose the TOYAN FS-L400 Kit?
- The Ultimate DIY Experience: This engine arrives as a kit of precision components. You become the engineer, assembling the crankshaft, setting the timing, and installing the valves. It transforms the passive act of buying into an active journey of creation.
- True-to-Life Performance: Featuring a 180-degree integrated crankshaft and a 1-3-4-2 ignition timing sequence, this engine runs with the smoothness and response of a real sports car engine. It revs up to 13,500 RPM, delivering a sound that electric motors simply cannot replicate.
- Quad-Carburetor Precision: Unlike simpler engines, the FS-L400 boasts four independent carburetors. This allows for professional-level tuning, giving you precise control over the air-fuel mixture for sharper throttle response and stable idling.
- A Gift of Legacy: This is more than a toy; it is a project to be shared. It provides a perfect platform for friends or family members to bond over mechanics, passing down knowledge and creating memories that last long after the build is finished.
Technical Highlights: Engineering Excellence
- Integrated Water Cooling: The engine features a built-in mechanical pump driven by the crankshaft. This provides active coolant circulation, allowing the engine to run under load without the risk of overheating (Radiator required separately).
- High-Torque Long Stroke: With a stroke of 17.00mm, this engine is designed for torque. It provides the low-end grunt needed to move heavy RC trucks or boats with authority.
- Dual Synchronous Pulleys: The timing belt system utilizes a dual-pulley structure. This greatly reduces the risk of "gear jumping" or belt slippage during high-speed operation, ensuring your valve timing stays perfect.
- Electric Start Ready: The kit includes a high-torque brushed starter motor. No more pull-starts; simply connect a battery and press a button to bring the beast to life.
Specifications
- Model: TOYAN 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 Model Fuel (20-25% Nitro content recommended)
Usage Scenario: The Garage Workshop
The weekend has arrived. You clear your workbench and lay out the parts. Following the manual, you carefully install the camshafts and apply grease to the lobes. You connect the fuel lines using T-connectors, creating a professional-looking fuel rail. Finally, you hook up the battery. The starter motor whirs, and suddenly—VROOM. The engine settles into a steady idle. You tweak the carburetors, and the exhaust note sharpens. You haven't just built a model; you've built power.
Important Tips from the Workshop (Must Read)
- What You Need to Buy Separately: This is the Engine Kit Only. To run it, you must purchase:
- Glow Plugs (4 pcs, 4-stroke type)
- Ignition Module (or Glow Plug Driver)
- Water Cooling Radiator & Fan
- Fuel Tank & Fuel Lines
- Mounting Base
- Batteries (2S LiPo for starter)
- Lubrication is Unique: Unlike car engines, the FS-L400 does not have an oil sump.
- Camshafts: Must be lubricated by applying Red Grease directly to the lobes and gears during assembly.
- Crankshaft/Pistons: Lubricated by the fuel itself (which contains oil). Do not add oil to the crankcase.
- Fuel Requirement: Use high-quality Methanol Model Fuel with 20-25% Nitro content. Do not use gasoline.
- Piston Rings: The piston rings are pre-installed in the cylinder block at the factory to ensure safety. If you don't see them loose in the box, they are already inside the liners!
- Fuel Rail Setup: Since there are 4 carbs but one tank, you will need to use T-connectors or Y-connectors (not always included) to split the fuel line to feed all four cylinders evenly.
Customer Support
Building a 4-cylinder engine is a complex and rewarding task. If you need help with tuning, assembly steps, or sourcing the correct accessories, please contact our expert team at service@helloworld7.com.
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