July 31, 2019

VS Racing VSR03-EV2 .21 nitro on-road engine

Coming from World Champion Products is the VS Racing VSR03-EV2 3.5cc nitro on-road engine. Based on the O.S. Speed R2103 the super-long stroke engine is developed for high-class competition use and it features a 7-port design, CNC-machined piston and a 14mm “Rody” modified and DLC-coated crankshaft. New to the EV2 variant are optimised modifications to the crankshaft as well as a new combustion camber insert with a silicone O-ring that ensures a cleaner area between the cooling head and the crankcase. The engine is available separately or as combo set including VS2098 or VS2069 exhausts.

– Super-long stroke
– 7 ports with MES
– CNC machined piston
– 14mm modified “Rody” DLC turbo crankshaft, balanced, internally ground/rounded, lightened and silicone-filled
– Competition conrod
– Turbo combustion chamber VS Spec. EV2
– 14mm high-speed main bearing
– 7mm high-speed front bearing with rubber protection
– VSR03 Spec. super lightweight cooling head
– VS crankcase
– 8.5mm aluminium restrictor

– Type: On-Road
– Displacement: 3.49cc
– Bore: 16.08mm
– Stroke: 17.20mm
– Crankshaft: DLC/TUNG/SIL 14mm SG/SPT (25/245)
– Main bearing: 14mm high speed
– Front bearing: 7mm high speed
– Cylinder: ABC
– Ports Intake: 7 (300/60)
– Ports Exhaust: 3 (270/90)
– Carburettor: Neck 15mm VS Spec.
– Cooling head: Superlight On-Road
– Combustion camber insert: VS Spec for conical (Turbo) glow plug
– Weight: 330g

Source: World Champion Products [worldchampionproducts.com]


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