R5R RACER V4.0 .21 Off-Road Competition Buggy Engine Combo by REDS w/2104 Pipe
This product was added to our catalog on June 21, 2017.
The REDS Racing R5R RACER V4.0 .21 Off-Road Competition Buggy Engine Combo takes the R5R V4.0 and pairs it with the REDS 2104 tuned pipe to create the perfect synthesis of quality, performance and price point.
Everything that makes the 4.0 unique is an extraordinary step forward. The R5R V4.0 has been redesigned with a redesigned 5 ports sleeve and crankshaft timing. The engine is designed with improved fuel efficiency and drivability in mind and is suitable for both Buggy and Truggy.
R5R V4.0 Improvements
- Up to 30 second increase in runtime
- Up to 5% increase in top speed
- Up to 3% increase it torque
R5R Racer tuned by M.Rossi guarantees the same performance as a Pro engine at reasonable price. The 4.0 is one of the most advanced and innovative products on the market, equipped with the best technology to improve reliability and guarantee the best performance on all terrains: HCX horizontal carburetor, silicon filled and tuned crankshaft, sleeve with 5 inlet ports and classic exhaust port, high sealing front bearing, rear steel high quality chrome steel bearing.
The included REDS EFRA 2104 Smooth Power exhaust guarantees smooth power delivery, with high fuel economy on your REDS engine. The REDS 2104 is suitable for any type of track where smooth power is preferred. The pipe kit includes the springs and gaskets required for assembly, as well as a short manifold. This pipe can also be used with the extra short manifold on tracks with long straights where you need more top speed and less bottom end torque.
POWERBAND - RPM
Low - ●●●
Mid - ●●●●
High - ●●●●
Application: 1/8 Buggy or Truggy
Displacement [cm^3]: 3.5
Bore [mm]: 16.2
Stroke [mm]: 16.9
Inlet ports: 5
Outlet ports: 3
Front ball bearing [mm]: 7x19x6 rubber seal made in Japan
Rear ball bearing [mm]: 14x25.4x6 Swiss made steel
Carburetor diameter [mm]: 7
Carburetor: HCX Long needle
Weight [g]: 360
Cylinder system: ABC
Exhaust type: rear
Recommended Glow plug: REDS T5C
Recommended pipe: REDS 2143 + S
Recommended fuel: 25-30% nitro, 8-10% oil
Break-in fuel: 12% oil