Description
The VS Racing VSB03 Long Stroke .21 Competition Off-Road Buggy Engine is based on the very powerful O.S. Speed 21XZ-B specII and is a combination of world famous OS Max precision and technology, together with some additional ‘Rody’ touch and development.
This engine features a VS Spec combustion chamber, a redesigned sleeve and additional DLC coating on the crankshaft. This engine is developed to find the best balance between performances/reliability and costs.
The VS Racing VSB03 is suited for high competition 1/8 scale off-road racing and is recommended for “EXPERIENCED” users only.
Key Features:
- Long Stroke
- Unique and Specific 5-Ports design
- CNC machined flat piston
- 14mm turbo crankshaft, balanced, lightened and silicone paste, DLC coated
- Competition Connecting rod
- Turbo combustion chamber VS Spec.
- 14mm high-speed main bearing
- 7mm high-speed front bearing with rubber protection
- Lightweight cooling head
- VS Spec. Button head and additional O-ring
- Aluminum lightweight slide carburetor with double adjustment
- 6.5mm aluminum restrictor
This engine is developed to find the best balance between performances/reliability and costs.
The VS EFRA 2135 pipe and L50 manifold have recieved a specific Hardcoating process and this specific treatment will allow an increase of resonance and so an increase of performance too.
This specific kit features:
- Optimum engine performances.
- Better resonance.
- Easy cleaning.
- Low noise level.
- Incorporated pressure nipple on Pipe.
- Gaskets and springs included.
Technical Specifications:
Type: Off-Road
Contents: .21 (3.49cc)
Bore: 16.27mm .640
Stroke: 16.80mm .661
Crankshaft: 14mm SG/SPT (buggy) DLC
Main-Bearing: 14mm
Front-Bearing: 7mm
Cylinder: ABC
Ports Intake: 5
Exhaust Port: 1
Carburetor: 15mm VS Spec.
Cooling-Head: Light Off-Road
Button Head: VS Spec for conical (Turbo) glow plug
Max Power: 30K RPM
RPM Range: 4-40K RPM
Weight: 355g
