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REDS 721 Scuderia Superveloce SV Gen4 Pro 3.5cc (.21) Off-Road Nitro Engine (Airboost DLC-Coated) w/Pre Break-In by Mario Rossi


Offroad Racing Nitro Engine Overview:

Experience the pinnacle of RC racing with the REDS 721 Scuderia Superveloce SV Gen4 Pro, a state-of-the-art 3.5cc off-road engine meticulously engineered to enhance performance on the track. At the heart of its exceptional performance is REDS's innovative VCX3-A 3-needle carburetor. Exclusive to the 721 Scuderia Superveloce engine, this carburetor not only enables superior tuning in diverse conditions but also guarantees a consistently linear power delivery. With a State of the art die casting, the carburetor enhances both sealing and tuning stability, ensuring optimal performance every time in all conditions.

Adding to the high-quality components are features like a double seal front bearing designed for heightened durability and idle stability, a REDS 9 balls rear ceramic bearing that elevates overall performance, and a fuel-efficient design that outstandingly reduces fuel consumption. The engine's long-stroke geometry, 7 scavenger ports, and a single exhaust port cylinder sleeve collaborate with the crankcase to deliver enhanced low-to-middle-range torque, positioning the Scuderia as one of the fastest engines on the market. The DLC-coated backplate contributes to unparalleled durability, extending the engine's lifespan and ensuring that you finish the main in the harshest conditions. Meticulously hand-tuned by M. Rossi, each engine undergoes individual inspection and compression checks at REDS headquarters, showcasing a commitment to excellence that sets REDS engines apart from competitors. Elevate your racing experience with the REDS 721 Scuderia Superveloce SV Gen4 Pro, where innovation seamlessly meets precision on the racing track.


  • Pre-Break in by Mario Rossi: This engine was broken-in by THE man himself Mario Rossi for you to plug and race right away!
  • State of The Art Die Cast Crankcase: The crankcase 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.
  • Innovative VCX3-A Carburetor: The high performance VCX3-A 3 needle carburetor allows easy tuning in all conditions with linear power delivery.
  • 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.
  • REDS 9 Balls Rear Ceramic Bearing: Elevating durability and reliability, the rear ceramic bearing with 9 balls enhances overall performance.
  • Fuel-Efficient Design: The 721 Scuderia Superveloce SV Gen4 Pro is a high-torque engine crafted to significantly reduce fuel consumption with even better run time that the 721 Scuderia Gen4 Pro! Extending runtime and positioning it as one of the fastest engines on the market!
  • Airboost DLC Coated Backplate: Designed to increase mid to high RPM power, increased fuel efficiency and faster return to idle while Providing unparalleled durability with extended lifespan by approximately three times that of conventional steel.
  • LCG Cooling Head: The updated cooling head features an LCG (Low Center of Gravity) design for enhanced car handling and improved aerodynamics for reduced drag!
  • Hand-Tuned Excellence: Meticulous hand-tuning by M. Rossi, including a silicone-filled, balanced, and tuned crankshaft, exemplifying Reds Racing's commitment to setting their engines apart from competitors.


  • Displacement: 3.5cc
  • Bore: 16.2mm
  • Stroke: 16.9mm
  • Inlet ports: 7
  • Outlet ports: 1
  • Front ball bearing: 7x19x6 dual seal
  • Rear ball bearing: 14x25.4x6 Ceramic
  • Carburetor diameter: 7.0mm (6.0, 6.5, 7.5, 8.0 optional)
  • Carburetor: VCX3-A Aluminum Short needle
  • Weight: 345g
  • Fuel consumption: >8:30
  • Engine temperature: 110-130°C
  • Recommended Glow plug: REDS TS3
  • Recommended pipe: REDS 2113 + M or XONE Torque
  • Recommended fuel: 16-30% Nitro, 8-9% Oil
  • Break-in fuel: 12% Oil


  • (1) 721 Scuderia Superveloce Gen4 Pro (.21) Off-Road Nitro Engine w/Pre-Break in by Mario Rossi