Description:

This is the Ofna Force .32 cu in (5.2cc) Nitro Engine with Pull Starter and SG (pilot) Crankshaft.

FEATURES: Unique pull start pin design allows conversion to non-pull start by purchasing different rear engine covers- ABC cylinder & piston set-Aluminum piston,Brass cylinder liner
with Chrome plating on the cylinder
Improved porting for higher torque and RPM power
Competition slide valve carburetor
Oversized cylinder head for efficient cooling. 
INCLUDES: Ofna Force .32 cu in (5.2cc) Pull Start Nitro Engine with instruction sheet, rubber exhaust gasket, collet and 3x6mm socket head screw to hold clutch assembly to crankshaft
REQUIRES: Fuel: Car fuel with 20% nitro content,Glow Plug: Long, without idle bar.

SPECS:

Displacement: .32 cu in (5.2cc)
Exhaust: Rear
Bore: 19.5mm
Stroke: 17.5mm

Liner : ABC
Number of Ports: 6
Crankshaft: 14.0mm SG (pilot) shaft

Piston: Fully CNC-machined aluminum alloy
Connecting Rod: 7075 aluminum double bushing
Claimed Output: 3 @ 33,000RPM
Max RPM: 36,000
Needle Settings: Main: 3-3-1/2 turns from closed. Low Speed: Flush with ball end
Barrel Stop Screws: 1/16" gap to start new engine
Distance Between Mounting Holes Same Side: 0.83" (21mm)
Distance Between Mounting Holes Opposite Side: 1.5" (38mm)
Height Bottom of Mounting Tabs to Top of Cylinder Head:4" (102mm)
Width at Mounting Tabs: 1.8" (45.8mm)
Width of Crankcase Below Mounting Tabs: 1.2" (30mm)
Distance from Pull Start to Front Bearing: 3.3" (84.3mm)
Distance from Center of Engine to Front Bearing: 1.8" (45mm)
Distance from Center of Engine to Pull Start: 1.5" (39mm)