Reds Racing 721 Scuderia Pro Gen4

Reds Racing has introduced its latest 3.5cc offroad engine designed, the 721 Scuderia PRO Gen 4.  The engine boasts Reds Racing’s revolutionary 3 needle carburetor, only available on Gen 4 Scuderia engines.  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.  The 721 Scuderia Pro Gen 4 is a high-torque engine crafted to significantly reduce fuel consumption. Its features include a long-stroke geometry of 16.2×16.9 mm, 7 scavenger ports, and a single exhaust port cylinder sleeve that collaborates with the crankcase, delivering enhanced low-to-middle-range torque.  The 721 Scuderia PRO is hand tuned undergoing meticulous hand-tuning by M. Rossi, including a silicone-filled, balanced, and tuned crankshaft.  Each engine is individually inspected and compression checked by Mario and Marco Rossi.  Other features include a double seal front bearing engineered for heightened durability and idle stability and Reds 9 balls rear ceramic bearing which enhances overall performance.

721 Scuderia Pro Gen4 Technical Specs
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: 14×25.4×6 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

Source: Reds Racing [reds-racing.com]