Novarossi ISON 21GT Tuned Long Stroke .21 Rally Engine

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Brand: Novarossi
Product Code: ISON 21GT Tuned
Availability: Out Of Stock
Price: Out Of Stock RM1,000.00
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Novarossi ISON 21GT Tuned Long Stroke .21 Rally Engine

Tech Specs:

Displacement: 3,49 cc
R.P.M. (max power): 38.500 RPM
Practical range: 6.000-44.000 R.P.M.
Bore x stroke: 16,26x16,80 mm
Sleeve: 5 ports
Rear ball bearings: steel
Front ball bearings: steel
Crankshaft: 14mm - turbo - tuned
Carburetor: aluminium - 9 mm - slide
Glowplug: Turbo (C6TGF)
Exhaust position: rear
Starting: -
Weight: 367 g
Fuel type: 25% nitro

This is the Novarossi ISON .21GT TUNED 5 Port .21 Long Stroke Rally Engine. This engine features a silicone ramped and tungsten slugged "Tuned" crankshaft for incredible acceleration.


  • Conrod: The R7 conrod is made from a super light aluminum which has been checked ultrasonic. The specific form of the R7 creates little turbulence inside the engine while running.
  • Sleeve: The sleeve has 5 transfer ports and is made from hard chromed brass (true ABC construction.
  • Crankshaft: The crankshaft has been ground to increase the mixture flow and has a special shape to reduce turbulence inside the crankcase. The balancing is done by 2 inserts made of tungsten alloy and the inlet has a silicone filling to reduce the weight of the crankshaft for improved acceleration.
  • Glowplug: The glowplug of the engine is a Turbo type glowplug. Turbo glowplugs have a different shape than Standard glowplugs and therefore are not interchangeable with engines that use Standard glowplugs.

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