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Novarossi S21P5XLT .21 5 Port Off Road RBMods

Part Number:NVRS21P5XLT

2015 Version


Displacement: 3.49cc.
Bore x Stroke: 16.26mm x 16.80mm
Transfer Ports: 5
Rear Ball Bearing Type:
25.8mm Steel
Crankshaft Type: 14mm SG
Carburetor Type: 8mm Slide
Material: Plastic
Adjustment: Single
Glowplug Type: Turbo - C6T
Exhaust Position: Rear

You can choose type of bearings below for front and rear

In stock (97 items available)
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Old price: $325.00 , you save $100.00
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  • Weight
    2.0000 lbs
  • SKU
Compression rings:
The ignition timing is controlled with these little rings of various thickness. To change the ignition timing you can add or remove a ring of a certain thickness.
The sleeve has 5 transfer ports to supply a linear power output and to keep fuel consumption low.

The crankshaft is manufactured with a larger bore intake to increase the mixture flow;and has a special shape to optimise gas-flows in the engine.

The R7 conrod is made from a superlight alluminium which has been checked ultrasonic. The specific form of the R7 creates little turbulence inside the engine while running.
This carburettor is made from plastic and have a sliding throttle valve. (reverse type).

The glowplug of engine is a Turbo type glowplug. Turbo glowplugs have a different shape than Standard glowplugs and therefor are not interchange able with engines that are using Standard glowplugs!
  Combustion chamber:
The combustion chamber is supported by an O-Ring which is placed between the combustion chamber and the crankcase to reduce the vibrations of the combustion chamber.
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