REDS 321 ESTREMO and pipe combo (2143 TORQUE X-ONE)
REDS 321 ESTREMO and pipe combo (2143 TORQUE X-ONE)
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Part Number: COBU0037
**This is a Engine combo with 2143 pipe (X-line pipe needed for OS based engines)**
ALSO included: TS3 plug (for cooler temps) and 6.0 venturi. A $30 value !!
UPC: 761000974882
Brand: REDS Racing
By combining REDS Racing’s Italian racing engineering and development philosophy with the manufacturing expertise and precision of Japanese OS engineering, this project brings together the best of two worlds.
The result of this collaboration is a new engine platform designed to deliver outstanding performance, reliability, and drivability—an engine that represents the perfect blend of Italian racing passion and Japanese manufacturing excellence.
The new X Line debuts with the 321 ESTREMO™, a 3-port engine designed to offer a different driving character compared to the well-known 721 S Line platform.
321 Estremo features:
- 3-port engine design focused on high torque output
- Advanced cylinder and sleeve design with optimized internal flow channels
- Ultra-lightweight piston to reduce reciprocating mass
- REDS ultra-lightweight high-efficiency cooling head
- AirBoost DLC-coated backplate for improved power and efficiency
- DLC-coated crankshaft with double balancing
- Carburetor based on O.S. Speed 21J design
- Venturi XFlow™ intake system available in 6, 7, and 8 mm sizes
- USA dedicated combustion chambers for 25–30% nitro fuels
Tech Specs:
- Displacement: 3.5 cm³
- Bore: 16.4 mm
- Stroke: 16.4 mm
- Inlet Ports: 3- Outlet Ports: 1
- Front Bearing: 7×19×6 with single high-performance seal
- Rear Bearing: 14×25.4×6 – 9 balls high-durability ceramic bearing
- Carburetor Type: VLX3-A aluminum long needle
- Venturi Diameter: 7.0 mm (optional venturi sizes: 6.0 mm and 8.0 mm – carburetor body 9.0 mm)
- Backplate: AirBoost DLC-coated backplate
- Crankshaft: DLC-coated with two tungsten balancing weights
- Weight: 345 g
Schelle Racing Innovations
Founded by 13-time IFMAR World Championship winning r/c designer Kurt Wenger, the Schelle (pronounced like "shell") brand exists to give customers design driven performance parts for r/c racing.
For unparalleled racing experience and service, choose to buy from Schelle. Email Kurt info@schelleracing.com with questions or for setups using Schelle parts.
