It is recommendable to match the engine with the REDS 2143 + M, or XONE Torque tuned pipe.

Features:

- ALUMINUM CARBURETOR: 521 Sport engine includes the same aluminum carburetor as 721 engines to guarantee reliability and tuning stability. The insulator bushing has been improved with aerospace grade ultra high strength polymer. Furthermore, the GEN2 carburetor features a double grub screw joint link to allow positioning and fitting with the any servo linkage system.

- STATE OF THE ART DIE CASTING: The unique high stiffness crankcase design is produced with a high quality pressure die casting process and special aluminum alloy developed by REDS Racing engineers to guarantee higher stiffness and strength.

- 5 PORT TECHNOLOGY: The piston and sleeve features updated materials. Thanks to updated 5 port technology, this engine provides really good fuel mileage and a smooth power band.

- HANDMADE, TUNED AND ASSEMBLED: Every single engine is hand inspected and compression checked inside REDS Racing headquarters by Mario Rossi to achieve the highest quality standards.

Specifications:

Category: 1/8 Buggy and Truggy

Displacement: 3.5cc

Bore: 16.2mm

Stroke: 16.9mm

Intake ports: 5

Exhaust ports: 1

Front Bearing: 7x19x6mm double rubber seal

Rear Bearing: 14x25.4x6mm steel

Carburetor Venturi: 7.0mm (6.0, 6.5, 7.5, 8.0 optional)

Carburetor: VCX2-A Aluminum Short needle

Weight: 345g

Fuel consumption: > 9:00 min

Engine temperature: 110-130�C

Recommended Glow plug: REDS TS3

Recommended pipe: REDS 2143 + M or XONE Torque

Recommended fuel: 25-30% nitro, 8-10% oil

Break-in fuel: 12% oil

COBU0017C
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