June 23, 2020

BLOK 21bM 3.5cc off-road nitro engine

Tekno RC have announced the release of their new BLOK 21bM engine as well as an extensive parts line for their engines. Intended for buggies but also well suited for truggies, the BLOK 21bM engine provides the smooth, linear power band and excellent fuel mileage required at the highest levels of competition. The bottom-end starts out incredibly smooth, then pulls through the mid and high end to give you the extra grunt to hit that short take-off and additional acceleration for the straightaway. Features include a long-stroke piston and sleeve design, DLC coated silicone-filled crankshaft, laser-etched low profile cooling head, blue 6.0 and 6.5mm venturi, plus all components are interchangeable with the popular 21aP. It comes paired with the 21J carburettor which is widely regarded to be the gold standard due to its tunability and consistency over wide-ranging temperatures and humidity. In addition to the new 21bM power plant Tekno RC are now able to provide all spare parts that drivers might need for their engine.

Key specifications:
– Displacement: 3.49cc
– Bore: 16.27mm
– Stroke: 16.8mm
– Output: 2.55 ps/2.59 hp @33,000 r.p.m
– Practical R.P.M: 4,000~40,000 r.p.m
– Weight: 362g

Source: Tekno RC [teknorc.com]


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