Description
Pre Broken In
NB Engine will still require 0.5ltr of fuel and tuning to be run though it but we have made life a lot easier for you!
The new and exclusive VS Racing?VSB04 long stroke .21 off-road engine is based on the very powerful O.S. Speed 21XZ-B spec II and is?an extraction of the world famous OS Max precision and technology together with some additional ‘Rody’ touch and development,?equipped with a VS Spec combustion chamber with o-ring to protect this area from dirt, a?5-port?sleeve and additional DLC coating on the whole crankshaft, a rear-cover with “pushplate”.
The VS Racing?VSB04 is suited for high competition 1/8 scale off-road racing.
This engine is intended for “Experienced” users.
FEATURES:
- Long Stroke
- Unique and Specific?5-Ports?design
- CNC machined flat piston
- 14mm?turbo crankshaft, balanced, lightened and silicone paste,DLC,‘Rody’
- Competition Conrod
- Turbo combustion chamber VS Spec.
- 14mm high-speed main bearing
- 7mm high-speed front bearing with rubber protection
- VS Spec.?lightweight cooling head
- VS Spec. Underhead and additional o-ring
- VS Spec. Crankcase
- VS Spec. rear-cover with ‘pushplate‘
- VS spec. aluminum lightweight slide carburettor with double adjustment
- 6.5mm aluminum restrictor
This engine is developed to find the best balance between performances/relaiability and costs.
Tech:
| Type : | Off-Road |
| Contents : | .21(3.49cc) |
| Bore?: | 16.27mm |
| Stroke : | 16.80mm |
| Crankshaft : | 14mm SG/SPT (buggy) DLC |
| Main-Bearing : | 14mm HighSpeed |
| Front-Bearing : | 7mm HighSpeed |
| Cylinder : | ABC |
| Ports Intake : | 5 |
| Exhaust Port : | 1 |
| Carburator?: | Neck?15mm VS Spec. |
| Cooling-Head?: | Light Off-Road |
| Underhead : | VS Spec for conical(Turbo) glowplug. |
| RMP : | Max Power @ 30K RPM (4-40K RPM range) |
| Weight : | 355Gr |
