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Motor OS Speed B21 Adam Drake Edition 4.
Motor glow para 1/8 Off Road Nitro.
Basado en el OSB21.
Culata AD4 con una aleta extra para una mejor refrigeración.
Diseño de cilindro específico AD4 para mayor par.
Cigüeñal con recubrimiento DLC AD4 y nuevo diámetro interior modificado para mejorar la potencia en bajas y medias revoluciones.
Culatín con junta tórica de silicona para reducir vibraciones y evitar la entrada de polvo.
Venturis azules específicos AD.
Tapa trasera con placa de empuje que reduce la fricción contra la biela para prolongar su vida útil.
Motor de carrera larga de 16,8 mm.
Rodamiento principal cerámico.
Especificaciones:
Cilindrada: 3,46 cc.
Potencia: 2,68 ps @ 34.000 rpm.
Diámetro: 16,27 mm.
Carrera: 16,80 mm.
Rango práctico de RPM: 4.000 ~ 42.000 rpm.
Peso: 352 g.
Incluye:
Bujía T-P3.
Venturi de 6 mm.
Venturi de 8 mm.
Junta de escape.
Juego de tapas antipolvo (3 mm / 16 mm / 18 mm).
O.S. Engines.
OS SPEED B21 ADAM DRAKE EDITION 4 Off-Road Engine
O.S. Engines would like to introduce new O.S.SPEED B21 ADAM DRAKE 4. The latest collaboration engine with world famous O.S. Team driver Adam Drake.
The cylinder liner, crankshaft & cooling head has been redesigned to Adam Drake s spec for better balance, more torque and more power for better driving performance.
Main changes (compared to AD3):
Cylinder liner: Revised port-design for more torque.
Crankshaft: Inner diameter has changed for better low to mid end power.
Combustion chamber: Redesigned for more torque
Outer head: Extra fin for better cooling, reduced weight, lower center gravity for better balance and new laser design with double anodized colors.
Specs:
Displacement: 3.49cc
Bore: 16.4mm
Stroke: 16.55mm
Output: 2.65ps / 2.61hp @ 34.000RPM
Practical RPM range: 4.000-42.000
Engine Weight: 352g
Included:
Glowplug: O.S.SPEED P3
Reducers: 6II (blue) AL2 & 8mm (blue) AL
Exhaust seal ring
Dust cap set: 3/16/18mm
Advice and testing was done by Roar Champion Adam Drake.
Newly designed cylinder liner uses 3 port design. Changing the exhaust dimension for more torque.
Changed crankshaft s inner diameter for better response in low to middle range.
New outer head has double anodized black and blue with new laser design and at same time lighter and better balance compared to the previous model.
The combustion chamber has been redesigned combustion efficiency has been improved, resulting in more torque.
Comes with ö6II and ö8 blue anodized restrictor venturis.
OS Engines
