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- First Line
- JP 21 Rally NEW
The engines FX 21 B5 T are intended for Buggys 1 / 8. They were developed to give you the best performance. The sleeve 5 ports provides the best combination of power, flexibility and autonomy. They have high-speed special bearings and high speed waterproof front bearing.
| C. Capacity : | 3,49 cc |
|---|---|
| Bore : | 16,26 mm |
| Stroke : | 16,80 mm |
| Ports : | 5 + 2 By pass |
| Crankshaft : | ø 14 mm |
| Carburetor : | ø 8 mm + reducer |
| Glow Plugs : | Turbo |
| Weight : | 385 gr |
# FX 21 B-5T S
Turbo Glow Plug
Turbo Glow Plug for best performances.
5 ports ABC Sleeve
The 5 ports ABC sleeve is endowed with two by-pass for the lubrication of the connecting rod. This sleeve has two boosters to the exhaust to improves the exhaust system while the fuel consumption. The piston is CNC machined and drilled to better lubricate the head of connecting rod and cools bottom of the piston. The connecting rod is R7 type with double ring-type brass.
Turbo Crankshaft
The modified and lightened crankshaft is filled with the special red putty which is positionned to improve the gas passage. In order to reduce the friction and the wear, the crankshaft is HardBlack coated.
The Turbo design of the crankshaft's head highly improves the engine power. For best performances!
Carburetor
The special Off-Road carburetor uses a plastic body to prevent the «vapor-lock». This carburetor is coming with an 8mm reducer (red) its also available in different sizes. As all FX Engines, it has a simple adjustment (1 screw). The adjustment is easier and simpler compared to a double screws.