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- First Line
- JP 21 Rally NEW
The engines FX 21 B are intended for Buggys 1 / 8. They were developed to give you the best performance. The FX 21 B8 differs from B5 by its 8 ports sleeve. It gives more power to all the RPM and this engine makes it especially suitable for fast tracks and jumps. In spite of these performances, the fuel consumption of this engine is more than 8 minutes.
| C. Capacity : | 3,49 cc |
|---|---|
| Bore : | 16,26 mm |
| Stroke : | 16,80 mm |
| Ports : | 8 + 2 By pass |
| Crankshaft : | ø 14 mm |
| Carburetor : | ø 8 mm + reducer |
| Glow Plugs : | Standard |
| Weight : | 385 gr |
# FX 21 B-8N S
Normal Glow-plug
The insert type is "Standard" and thus it receives a Normal buggy.
8 ports ABC Sleeve
This 8 ports sleeve is revolutionary in the Off-Road engine’s range. The exhaust has two boosters in order to increase performances and to manage better fuel consumption.
The last generation conrod is lightened with 2 bushings. The piston is also drilled to decrease the piston temp.
Turbo Crankshaft
The lightened crankshaft is filled with the special red putty which is positionned to improve the gas flow.
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.
