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COMBO 721 S SCUDERIA Pre-Break in service M. Rossi with 2143 X-ONE TORQUE (#COBU0010B)

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800,000
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REDS
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168012000066
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274425
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REDS Racing 721 Scuderia



REDS Racing is excited to introduce a new generation nitro off-road engines called S Line. The first engine of the S Line is a 7 ports 3.5cc off-road engine called REDS Racing 721 S Scuderia.

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 Scuderia features 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.

+10% TORQUE
During testing we found the new engine is able to provide 10% more torque, making it suitable for both Buggy and Truggy.

 

OVER 9 MIN RUN TIME
The 721 S Scuderia has proved to guarantee over 9 minutes runtime in recent competitions and tests thanks to new materials and coatings.




What is new and different?
To make it simple REDS Racing’s new generation engines will be produced with different materials, from different suppliers and with new technologies. All assembled in-house.

New Crankcase design: REDS Racing S line features a new and unique high stiffness crankcase design. It is all new materials and casting technology. The engine is produced with pressure die casting, this is a very high quality process. Previous generation R line crankcase was with gravity casting.



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 Clamping System: the new carburetor retainer allows better blocking of the carburetor without damaging the plastic bush thus guaranteeing better reliability and less maintenance.

New Materials: 721 Scuderia 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


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: balanced with low friction DLC Coating
Backplate: aluminum with low friction DLC Coating
Front ball bearing: 7x19x6 rubber seal made in Japan
Rear ball bearing: 14x25,4x6 Swiss made ceramic
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




tem Codes:

ENBU0021 > 721 S SCUDERIA, 7 ports 3.5cc engine
COBU0010 > COMBO 721 S SCUDERIA with 2143 X-ONE TORQUE Pipe
CL210002 > MANIFOLD REDS 3.5CC BUGGY SINGLE BEND XL, S SERIES
CL210003 > MANIFOLD REDS 3.5CC BUGGY SINGLE BEND L, S SERIES
CL210004 > MANIFOLD REDS 3.5CC BUGGY SINGLE BEND M, S SERIES
CL210005 > MANIFOLD REDS 3.5CC BUGGY SINGLE BEND S, S SERIES
KM210011 > PIPE 2143 BUGGY + MANIFOLD M KIT 3.5CC BUGGY, S SERIES
KX210007 > X-ONE PIPE 2143 TORQUE M KIT 3.5CC BUGGY, S SERIES

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