REDS - COMPETIZIONE 721 S .21 BUGGY REDENBU0023£
REDS Racing is excited to introduce a new engine the COMPETIZIONE 721S !
Why a new line of buggy engines ?
REDS is always striving to innovate. This means investment into new core technologies. Drawing from the rich experience gained through competing on the world’s best RC tracks with the best drivers in the world, our goal is to deliver quality products that are built with passion. The new S line does this.
What are the tech specs ?
The new 721 S Competizionefeatures high reliability, tuning stability and great fuel mileage. Combined with specific technical changes in the porting and new materials, this 7 port engine features higher power and better fuel efficiency compared to any REDS engine released from REDS.
New Carburetor and venturi :
Another big improvement is the brand new aluminum carburetor made from pressure die casting. We have decided to change carburetor materials from plastic to aluminum to further improve idle stability and tuning. On a technical note, the new carburetor is 30° inclined for better fluid dynamics to increase engine power. Finally, the new carburetor has an insulator to reduce carburetor temperature and increase idle stability at high temperatures.
New Materials :
721 S Competizione features new materials for piston, sleeve and crankcase in order to optimize thermal expansion and improve power. The idea was to develop a high power engine even more powerful than WRX and WR7 engines with exceptional fuel mileage. We have achieved it. New 7 Ports Sleeve: New high torque 7 ports sleeve for improved torque and power output.
New manifolds and X-One Pipes have been specifically developed for the S line.
Specifications Reds 721S Competizione :
● Category: 1/8 Buggy and Truggy
● Displacement [cm^3]: 3,5
● Bore [mm]: 16,24
● Stroke [mm] 16,8
● Inlet ports: 7
● Outlet ports: 1
● Crankshaft: NO DLC Coating
● Backplate: aluminum
● Front ball bearing:Steel
● Rear ball bearing: steel
● Carburetor diameter [mm]: 7.0 stock (6.0, 6.5, 7.5 and 8.0 optional)
● Carburetor: VCX2-A aluminum (2 needles)
● Weight [g]: 345
● Fuel consumption: >9:00 min
● Engine temperature: 110-130°C (depending on air temperature)
● Recommended Glow plug: REDS TS3
● Recommended pipe: REDS 2143 + M
● Recommended fuel: 25-30% nitro, 8-10% oil
● Break-in fuel: 12% oil
