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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 sleeve 5 ports provides the best combination of power, flexibility and consumption. 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 : | Standard |
| Weight : | 385 gr |
# FX 21 B-5N S
Normal Glow-plug
The insert type is "Standard"
5 ports ABC Sleeve
This 5 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 conrod is R7 type is the last generation conrod is lightened with 2 bushings. The casted piston is also drilled to decrease the piston temp.
Turbo Crankshaft
The crankshaft of the Eagle is machined to have a very light weight, more acceleration at low speed and stop consumption. The HardBlack coating on crankshaft avoids the problems of dust setting. Like all the Eagle line, the crankshaft is HardBlack coated, a red putty, used for over 20 years on JP Racing engines, is placed in designed hole of the crankshaft to improve 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 on all JP Engines the idle setting is limited on a single screw to adjust even easier and user friendly. This carburetor has already proved its worth and confer with this engine a great stability setting and excellent performance.