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UPC: 761000969802
Brand: REDS Racing

Introducing the Reds Racing 721 Scuderia PRO Gen 4, a cutting-edge 3.5cc off-road engine designed to elevate your racing experience.

This exceptional engine boasts Reds Racing's revolutionary 3 needle carburetor, only available on Gen 4 Scuderia engine. This carburetor not only facilitates superior tuning in diverse conditions but also ensures a more consistent and linear power delivery. Each carburetor is equipped with a special sealing ring, enhancing both sealing and tuning stability.

Key Features:

1. Double Seal Front Bearing: Engineered for heightened durability and idle stability, the high protection double seal front bearing is a testament to the engine's robust design.

2. REDS 9 Balls Rear Ceramic Bearing: Elevating durability and reliability, the rear ceramic bearing with 9 balls enhances overall performance.

3. Fuel-Efficient Design: The 721 Scuderia Pro Gen 4 is a high-torque engine meticulously crafted to significantly reduce fuel consumption. Its features include a long-stroke geometry of 16.2x16.9 mm, 7 scavenger ports, and a single exhaust port cylinder sleeve that collaborates with the crankcase, delivering enhanced low-to-middle-range torque. This design not only extends runtime but also positions the Scuderia as one of the fastest engines globally.

4. DLC Coated Crankshaft and Backplate: For unparalleled engine durability, the 721 Scuderia PRO comes equipped with a DLC-coated crankshaft and backplate. The diamond-like coating on the crankshaft increases its lifespan by approximately three times that of conventional steel crankshafts. Additionally, the conrod's lifespan is extended by about 50%.

5. Hand-Tuned Excellence: The 721 Scuderia PRO undergoes meticulous hand-tuning by M. Rossi, including a silicone-filled, balanced, and tuned crankshaft. Each engine is individually inspected and compression checked at Reds Racing headquarters by Mario and Marco Rossi. This commitment to quality exemplifies Reds Racing's dedication to setting their engines apart from competitors.

Experience the epitome of performance with the Reds Racing 721 Scuderia PRO Gen 4 — where innovation meets precision on the racing track.


Category: 1/8 Buggy and Truggy

Displacement [cm^3]: 3.5

Bore [mm]: 16.2

Stroke [mm]: 16.9

Inlet ports: 7

Outlet ports: 1

Front ball bearing: 7x19x6 dual seal

Rear ball bearing: 14x25.4x6 Ceramic

Carburetor diameter [mm]: 7.0 (6.0, 6.5, 7.5, 8.0 optional)

Carburetor: CG3 GEN1 Aluminum 3 needle

Weight [g]: 345

Fuel consumption [min]: > 9:00

Engine temperature [°C]: 110-130

Recommended Glow plug: REDS TS4

Recommended pipe: REDS 2143 + M or XONE Torque

Recommended fuel: 16-30% nitro , 8-9% oil

Break-in fuel: 12% oil

Available Models:




721 SCUDERIA GEN4 PRO - Pre break-in service by Mario Rossi


COMBO 721 S SCUDERIA GEN4 PRO with 2143+M Exhaust


COMBO 721 S SCUDERIA GEN4 PRO with 2143+M Exhaust - Pre break-in service by Mario Rossi

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