Product details

Ofna
E2101 Force .21 4 Port

• Replacement and upgrade parts are available for this product.

Product description

Ask us a question about E2101 Force .21 4 Port

             This is a .21 FORCE 4-PORT OFNA engine.
        This engine is used to power 1/8th scale R/C kits.
   *NOTE* Some kits require extra items to install and operate
          this engine. Check kit requirements for these parts.

FEATURES

• Oversized flow-through Blue anodized cylinder head
• ABC construction (Aluminum piston with a chromed brass cylinder)
• Rear exhaust
• Ball Bearing-supported crankshaft
• Slide Valve rotatable Carburetor
• Needle valve adjusted by a screwdriver

INCLUDES

• (1) .21 OFNA Force engine w/Slide Valve Carburetor
• (1) Flywheel (8.3mm ID x 24.6mm OD x 7.4mm Thick)
• (2) Brass collets (these hold flywheel in place)
• (1) Black silicone O-ring (15mm ID x 19mm OD x 11mm Thick)
• (1) Running and parts information sheets

SPECS

• Displacement: 3.48cc (.21 cubic inches)

Bore: 16.6mm (.654")     Stroke: 16mm (.63")
Weight: N/A
Power Output: 1.7 BHP at 30,000 RPM
Practical RPM Range: 2,500-35,000 RPM
Crankshaft Thread Size: 1/4-28
Length:  63mm (2.58") from front of front bearing to back of backplate
Width: 29.6mm (1.17") the width neglecting the mounting flanges
     37mm (1.46") distance across crankcase measured between the centers
Height: 100mm (5.50")

REQUIRES

• -Fuel with 5%-30% Nitromethane (15% is recommended) and a lubricant content of 18% or more
• -Muffler (or tuned pipe with header).
• -Glow plug (OSMG2690).

COMMENTS

• Also available with a pull start (OFNG5211), check kit for fit.
• Mounting dimensions are different than the O.S.RX,RG series engines.
• Weight in box: 0.43 kg (0.94 lb)