Description
The perfect combination of inovation, high quality and great performance at a mid range street price.
This new engine belongs to Reds Racing S LINE together with 721
Scuderia, Superveloce and Corsa, a new range of engines produced with
different materials, from different suppliers and with new technologies.
All assembled in-house and 100% made in Italy.
WHAT’S INSIDE
The new engine features high reliability, tuning stability and fuel
mileage. Combined with specific technical changes in the porting and new
materials, this 5 port engine features good power and fuel efficiency.
521 Sport guarantees excellent performance at a reasonable price.
ALUMINUM CARBURETOR
521 Sport engine has been provided with the same aluminum carburetor
as 721 engines to guarantee reliability and tuning stability.The
insulator bushing has been improved with aerospace grade ultra high
strength polymer. Furthermore, the new GEN2 carburetor features a double
grab screw joint link to facilitate positioning and fitting with the
any servo link layout.
DIE CASTING STATE OF THE ART
REDS Racing 521 Sport features a new and unique high stiffness
crankcase design.The crankcase is produced with a high quality pressure
die casting process and special alluminum alloy developed by REDS Racing
engineers to guarantee higher stiffness and strenght.
5 PORTS TECHNOLOGY
REDS Racing 521 SPORT features new materials for piston and sleeve.
Thanks to the new 5 ports technology the new engine guarantees really
good fuel mileage and smooth power band at the same time.
HANDMADE, TUNED AND ASSEMBLED
Every single engine is hand inspected and compression checked inside
REDS Racing headquarters by Mario Rossi to achieve the highest quality
standards. It is recommendable to match the new engine only with REDS
Racing original pipes, manifolds and optional parts. We advise using
REDS 2143 pipe and M manifold
Category 1/8 Buggy and Truggy
Displacement [cm^3] 3,5
Bore [mm] 16,2
Stroke [mm] 16,9
Inlet ports 5
Outlet ports 1
Front ball bearing dimension DixDexS [mm] 7x19x6
Front ball bearing features rubber seal
Rear ball bearing dimension DixDexS [mm] 14x25,4x6
Rear ball bearing features Swiss made steel
Carburetor diameter [mm] 7.0 (6.0, 6.5, 7.5, 8.0 optional)
Carburetor VCX2-A Aluminum Short needle
Weight [g] 345
Fuel consumption [min] > 9:00
Engine temperature [°C] 110-130
Recommended Glow plug REDS TS3
Recommended pipe REDS 2143 + M or XONE Torque
Recommended fuel 25-30% nitro, 8-10% oil
Break-in fuel 12% oil
