-
- First Line
- JP 21 Rally NEW
Eagle B-7N engine is designed for 1/8 Buggy and Truggy. This engine has been developed to provide even more performance and reliability. The new type of adopted piston sleeve provides the best combination of power, flexibility and consumption. The new design of the exhaust light has been studied to perfect the balance between power and consumption. This engine has an excellent autonomy and often allow over 8 minutes. The Eagle Buggy engine is fixed with high-speed bearings. The front bearing is special with two waterproof protections and rear one to protect the best engine assaults, dust and water. The special rear bearing is to reduce the vibrations of moving parts.
| C. Capacity : | 3,49 cc |
|---|---|
| Bore : | 16,26 mm |
| Stroke : | 16,80 mm |
| Ports : | 7 |
| Crankshaft : | ø 14 mm |
| Carburetor : | ø8 mm + reducer |
| Glow Plugs : | Normal |
| Main Bearing : | Hight Speed |
| Weight : | 385 gr |
# Eagle 21 B-7N - Stock
Crankcase Stock
The Eagle 21 B-7N Stock version has endowed in crankcase at any point comparable to other FX Engine. This crankcase tested several years ago on the FX series engine, is strong and machined with high quality. The quality of crankcase has been revised for a crankshaft ø14mm and provide the Eagle 21 B-7N Stock a very high level of performance. The rear cover has been redesigned to reduce the dead volume of the bottom crankcase. The lowest volume increases crankcase depression and increases the speed of gas.
WARNING : Place the piston on the top dead center (PMS) before removing the rear cover.
Cylinder Head
The cylinder head of Eagle 21 B-7N is endowed with 9 cooling ribs. Its shape and size are designed for optimum cooling and its getting down the center of gravity of the engine .
Head Insert Standard
The insert fixed on this engine is a "Normal" type.
The Standard glow-plug used with this insert allows an easy tuning of the engine.
7 Ports ABC Piston Sleeve with Boosters
This 7 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.
Crankshaft TURBO
The crankshaft of the Eagle is handled completely HardBlack and 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 8mm
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.