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SEMTO ST-FL2 4-Stroke Inline Twin-Cylinder 8.6cc L2 Engine Kit (KIT Version)

Original price $109.99 - Original price $399.99
Original price
$399.99
$109.99 - $399.99
Current price $399.99
SKU 3759608
Version: Engine

Material: Metal
Color: As shown
Brand: SEMTO ENGINE
Model: ST-FL2
Net Weight: Approx. 0.9 kg
Dimensions: 113.1 × 91.5 × 103.4 mm
Engine Type: Nitro internal combustion engine
Format: Kit version
Displacement: 8.6cc (2 × 4.3cc)
Cycle: 4-stroke
Cylinder Configuration: Inline-twin
Bore: 18.00 mm
Stroke: 17.00 mm
Valvetrain: Single Overhead Cam (SOHC)
Speed: 3000–20,000 rpm
Power: 1.2 HP
Cooling System: Water-cooled
Cooling Circuit: Built-in centrifugal water pump
Lubrication: Mixed/Splash lubrication
Starting Method: Electric start (480 brushed motor)
Glow Plugs: Type F glow plugs × 2
Ignition System: 2-in-1 ignition module
Cooling Hardware: Water tank and fan-cooled radiator
Fuel: 25% nitro fuel

Product Introduction:
The all-new SEMTO ENGINE ST-FL2 has officially launched, designed specifically for hardcore RC enthusiasts and mechanical engine hobbyists. We created this inline-twin, 4-stroke nitro engine kit to suit real-world RC modification scenarios, condensing the mechanical allure of a genuine automotive engine into a scale model. It is not merely a static display piece, but a fully functional internal combustion engine that you assemble yourself. Precision CNC-machined and anodized aluminum components faithfully replicate the structure and dynamic aesthetics of a real SOHC automotive engine. Balancing ease of tuning with stable power delivery, this engine is perfectly suited for 1/8 scale RC model modifications. Whether for DIY RC car modification, STEM classroom demonstrations, or as a premium desktop collectible, the ST-FL2 offers a wide range of possibilities. Assemble the entire unit by hand, witness the roar of the twin-cylinder engine coming to life, and immerse yourself in the mechanical mysteries of internal combustion. It is a perfect addition for engine collectors and a high-quality, impressive gift for mechanical enthusiasts.

Product Description:
1. RC-Compatible & Highly Expandable: Designed specifically for RC model cars, it features a compact, lightweight body and powerful performance. It supports clutch installation and gearbox modifications, offering ample room for upgrades to meet various customization needs.
2. Precision Craftsmanship & High Realism: CNC-machined from aluminum with a sandblasted, anodized finish, it faithfully replicates the structure of a real automotive engine. Built for durability with authentic mechanical operation, it serves as both a powerful drive unit and a premium desktop collectible.
3. Powerful Performance & Easy Tuning: Equipped with an electric starter for convenient ignition. Features a single carburetor and adjustable valves, ensuring sensitive throttle response and easy tuning. A built-in centrifugal water-cooling system maintains stable temperatures during prolonged operation, delivering consistent, reliable power.
4. DIY Kit for Mechanical Exploration: Assemble a fully functional internal combustion engine yourself. Gain an intuitive understanding of four-stroke engine construction and operating principles during assembly, enjoying the immersive fun of mechanical building. It offers a relaxing, stress-relieving activity perfect for hands-on mechanical enthusiasts.
5. Versatile Use & Ideal Gift: Suitable for RC model modification, STEM education, classroom experiments, and personal collections; it is frequently chosen by engineering instructors for teaching mechanical principles. A high-quality gift for model hobbyists, mechanical enthusiasts, and STEM fans.
6. ⚠️ Note: This product is a KIT; accessories such as ignition systems, water-cooling components, fuel tanks/lines, mounting bases, and batteries are not included and must be purchased separately. Please operate the machine in accordance with the instructions in the manual. If you have any questions about the product, please contact us promptly.

Recommended Age: 16+
Packaging: Color box
Package Contents: Engine kit × 1 set
basic assembly tools × 1
manual × 1

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