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Combo Motor VS Racing VS-R04 con escape completo VS Efra 2098 (OS Engines) by Rody Roem. 


Motor de competición para 1/8 On Road. 



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Engine VS Racing VS-R04 with exhaust combo 2098 by Rody Roem. 


The new and exclusive VS Racing VSR04 super long stroke .21 on-road engine is based on the very powerful O.S. Speed R2102 and is an extraction of the worldfamous OS Max precision and technology together with some addional 'Rody' touch and development, equipped with a VS Bi-Turbo crankshaft and VS Spec combustion chamber.  


The VSR04 is suited for high competition 1/8scale on-road racing. 

This engine is intended for "EXPIERIENCED" users.  




Super Long Stroke 

7 Ports with MES 

CNC machined Euro-Spec. piston 

VS Spec. 14mm MODIFIED 'Rody' DLC(Diamond Like Coating)Bi-Turbo crankshaft, lightened and silicone paste. 

Competition Conrod 

VS Spec. Turbo combustion chamber. 

14mm high-speed main bearing 

7mm high-speed front bearing with rubber protection 

VS Spec. R04 Super lightweight cooling head 

VS Spec. crankcase 

VS spec. aluminum lightweight slide carburetor with 8.5mm aluminum venturi. 

A special interest goes to the DLC coating technology which will increase the lifespan of the rotating parts, especially in the piston-area where the pin is exposed to high pressure from both piston and conrod. The crankshaft itself will resist better against wear on the conrod area but also at the intake area where sometimes dust passes. 




Type : On-Road 

Contents : .21(3.49cc) 

Bore : 16.08mm 

Stroke : 17.20mm 

Crankshaft : DLC/BI-TURBO/SIL 14mm SG/SPT (25/245) 

Main-Bearing : 14mm HighSpeed 

Front-Bearing : 7mm HighSpeed  

Cylinder : ABC 

Ports Intake : 7 (300/60) 

Ports Exhaust : 3 (270/90) 

Carburator : VS Spec. Neck 15mm 

Cooling-Head : VS Spec. Superlight On-Road 

Underhead : VS Spec for conical(Turbo) glowplug. 

RMP : Max Power @ 33K RPM (4-45K RPM range) 

Weight : 330Gr 



This combo includes: Kit Pipe VS Efra 2098 (OS Based) with Manifold M2001. 




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