EB Mods JS Racing "TX-521R" Race Prepped .21 Nitro Engine.

The JS TX-521R was designed by Ed Bridges of EB Mods with JS Racing. Ed Bridges was able to produce a high horsepower, fuel efficient, and durable engine.

The "Race Prepped" JS TX-521R VOX is inspected, and lubricated before being broken in by EB Mods with EBMods 30% Race Fuel prior to final packaging. This ensures that the engine has been properly run in and is ready to tune.

Features:

* Optimized sleeve timing and port design for increased run time
* Re-enforced case for better concentric mating during thermal expansion and contraction
* Knife edged long con rod, for a broad power curve
* 14mm TiN Coated Crankshaft, for reduced friction and long life
* 2 Needle slide carburetor w/6.5, 7, and 8mm inserts included
* Cross drilled cooling head for reduced weight and increased cooling

Specifications:
Displacement: .21c.i./3.49cc
Bore: .6405/16.26mm
Stroke: .6615/16.8mm
Sleeve: Chrome Plated Brass
Porting Intake: 5 port + 2
Porting exhaust: Single Optimized
Crankshaft: 14mm
Carburetor: Composite Two Needle w/Adjustable Venturi
Usable RPM Range: 40,000rpm

Recommended Pipes: Dynamite,Ofna or Novarossi 086

Recommended Plugs: OS P4, Summer OS P5

CANNOT ship 1st class or Priority mail envelope. Please choose Priority Mail or one of the Priority boxes.