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- Eagle 21 R-9S NEW
- Eagle 21 R-7S NEW
- FX 21 R-03
- FX 21 R-01 FirstLine Engines
- JP 21 P-7L NEW
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- FX 21 RG-1 FirstLine Engines
- JP 21 Rally NEW
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- Eagle 12 TL-3T NEW
- FX 12 T-05
- FX 12 T-03
- FX 12 T-03T FirstLine Engines
- JP 12 P-3L NEW
The JP 21R-7L is intended to the drivers avid to have performance and quality JP Racing without investing in an expensive engine. Its crankshaft is diameter 14mm. Its sleeve is endowed with 7 ports and the piston made with an alloy of aluminum-silicon. The sleeve with 7 ports was selected to combine performance and quality without other concession. The JP 21R-7L is endowed with high-speed main bearing as all the JP Racing engines. This engine is intended for the 1/8 On-Road car.
| C. Capacity : | 3,49 cc |
|---|---|
| Bore : | 16,26 mm |
| Stroke : | 16,80 mm |
| Ports : | 7 |
| Crankshaft : | ø 14 mm |
| Carburettor : | ø 9mm + reducer |
| Glow PLug : | Turbo |
| Main Bearing. : | Hight Speed |
| Weight : | 339 gr |
Référence : JP 21 P-7L
Black Crankcase JP21 P-7L
The JP 21 P-7L version is endowed with a completely comparable crankcase with the other engines FX Engine 21. This crankcase tested for several years on the series FX Engine is very strong and perfectly machined for an engine of this price. This quality crankcase will insure the JP 21 P-7L a very high level of performance.
This Black crankcase is, as on all crankcases modified JP Racing, the label of the JP brand and its identity since 20 years.
WARNING : Place the piston on the top dead center (PMS) before removing the rear cover.
Cylinder Head
The JP 21 P-7L cooling head is endowed with 8 ribs. It's shape and size were studied for an optimal cooling of the engine. The blue colour head is engraved P7 and JP..
Head Insert "TURBO"
The insert is a "Turbo" version to give an optimal performance to the JP 21 P-7L.
WARNING: It is very important to use only a Novarossi Glow Plug for this engine. Only this Glow Plug is perfectly adapted with this insert. The use of other brands can make the engine instable and damage the insert and the piston sleeve.
7 Ports ABC Piston Sleeve
This ABC sleeve 7 ports is selected to obtain an optimal performance. The structure of its ports optimizes performance and the fuel consumption of this engine. The piston is casted with a special alloy of aluminum. It's drilled with 2 holes for a better lubrication of the connecting rod and to decrease the temperature of the top of the piston.
Every piston sleeve set are fine tuned for optimum timing and better gas flow compared to Stock version. Each piston and sleeve manualluy fixed to check optimum tightening and best compression.
Crankshaft "TURBO" HardBlack Coated
The crankshaft of the JP 21 R-7L was drawn for a correct balancing without addition of masses of balancing. The diameter of the body of the crankshaft is 14 mm. The hole inside the shaft is slightly conical for a better flow. As all the engines JP Racing and it since more of 20 years, the red dough comes to fill the crankshaft's hole for a low weight and improves the gas flow. This shaft is coated HardBlack like all the Black JP Racing engines.
Like the piston sleeve set, each shaft is fine tuned for optimum timing and better gas flow compared to Stock version.
WARNING: Do not put the shaft inside solvent or gasoline for cleaning.
This liquides are able to damage the red dough.
Carburetor 9mm
The carburetor is endowed with an aluminium body to receive exchangeable reducers. This carburetor is delivered with a reducer of 8.5mm green. Other sizes of reducer are available. As on all the engines JP carburettor, the adjustment of the metering needle is made with only one screw for a more constant and easy setting.