ProTek RC CR21 3-Port .21 Off-Highway Engine (Turbo Plug)






ProTek RC CR21 3-Port .21 Off-Road Engine (Turbo Plug)


ProTek RC CR21 3-Port .21 Off-Road Engine (Turbo Plug) ProTek RC CR21 3-Port .21 Off-Road Engine (Turbo Plug) ProTek RC CR21 3-Port .21 Off-Road Engine (Turbo Plug)

From ProTek RC:
The ProTek RC CR21 3-Port .21 Off-Highway Engine is a good possibility for any budget-conscious membership racer on the lookout for a efficiency impressed 21 nitro engine. With a freshly designed crankshaft and light-weight piston, the CR21 can ship clean energy and crisp engine response. The engine shares the identical bore and stroke because the extremely profitable ProTek Samurai engines, selling peak engine efficiency. These options and extra offer you an engine able to excessive reliability and efficiency with out breaking the financial institution.

The CR21 nitro engine makes use of a 9-fin cooling head to take care of optimum working temperatures, and add nice seems to be. The combustion chamber is designed to advertise low to medium RPM ranges, excellent for membership racing, whereas nonetheless providing high-performance output at excessive RPM. Internally, the engine makes use of a chamfered “Knife-Edge” connecting rod that reduces reciprocating mass and will increase peak RPM. The J3-1 carburetor permits for exact tuning by way of the three adjustable needles. Two carburetor inserts are included (6mm – Orange and 7mm – Yellow) to assist in tuning circumstances.

Options:

  • Glorious possibility for off-road membership racers
  • Superior crankshaft design and light-weight piston ship clean crisp energy
  • Black anodized 9-fin cooling head
  • Features a extremely scorching ProTek P3 turbo glow plug
  • “Knife Edged” connecting rod decreases reciprocating mass whereas rising rpm
  • 3-Needle J3-1 Carburetor permits for exact tuning
  • Contains 6mm and 7mm carburetor venturis

Specs:

Displacement: .21ci (3.49cc)
Advisable Utility: 1/8 Off-Highway
Bore: 0.641in (16.27mm)
Stroke: 0.661in (16.80mm)
Output: 2.41hp @ 33,000RPM (2.45ps)
Porting:
Consumption: 2
Exhaust: 1
Sensible RPM Vary: 4,000-40,000
Weight: 13.43oz (381g)

Advisable Exhaust:

  • PTK-2060: ProTek R/C 2060 Tuned Pipe w/Manifold (PTK-2060-1: pipe solely)
  • PTK-2090: ProTek R/C 2090 Tuned Pipe w/Manifold (PTK-2090-1: pipe solely)

Advisable Glowplug:

  • PTK-2542: ProTek R/C P3 Turbo Glow Plug (Extremely Scorching)

Contains:

(1) CR21 3-Port .21 Off-Highway Engine
(1) P3 “Glow Plug Turbo Glow Plug “Extremely Scorching”
(1) Exhaust Gasket
(1) 7mm Venturi
(1) 6mm Venturi

#PTK-2670 – ProTek RC CR21 3-Port .21 Off-Highway Engine (Turbo Plug) – $299.99
Go to ProTekRC.com
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ProTek RC CR21 3-Port .21 Off-Road Engine (Turbo Plug) ProTek RC CR21 3-Port .21 Off-Road Engine (Turbo Plug) ProTek RC CR21 3-Port .21 Off-Road Engine (Turbo Plug)





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