Posté le: 28.04.2017, 21:02:07 Sujet du message: Motor LRP ZZ.21C Ceramic Square Stroke competición Nitro
Coming from LRP is the all-new ZZ.21C Ceramic Square Stroke 3.5cc nitro off-road engine. Follow-up model of the popular ZZ.21C Ceramic Long Stroke, the engine is of a square stroke design for linear throttle feel yet high low end torque and exceptional mileage. The precision-balanced 14mm crankshaft sports a DLC coating for improved durability while a silicone insert optimises mixture flow. Other features include a rear ceramic bearings, a lightweight piston and rod for higher RPM and increased performance while specially shaped carburettor needles make for a smoother throttle response and longer run times. The package is rounded out by a new low-profile cooling head and a set of 6.0mm and 6.5mm venturi inserts.
Specifications:
– Displacement: 3.49cc
– RPM: 40.500
– Power: 2.9HP
– Application: 1/8th buggy & truggy
– Ports: 3+1
– Weight: 355g
– Carburettor: XTEC Works Team with 6.0mm to 7.0mm inserts
– Glow plug: LRP Works Team WT3
n our new column, I want to talk about the latest technological development in Nitro competition engines. But I won’t stop there and also talk a little bit about the first ever Antix by LRP RC car and the TITC 2017 held in Bangkok.
Once again, our product management joint their forces with Nitro engine specialists O.S. Engines to cooperate in the development of the revolutionary new LRP Nitro engine ZZ.21C Ceramic Square Stroke exclusively made by O.S. Engines. Besides cooperating with O.S., we also heavily relied upon the invaluable input of our two top Nitro drivers Neill Cragg and Davide Ongaro who were at the forefront of the development at all stages.
The distinctive feature about square stroke engines is the fact that the bore is the same as the stroke. This results in a very linear power feel for the driver, with a smooth bottom end and massively increased mileage – even when compared to our Long Stroke engine. The LCG cooling head design is also brand-new and leads to a significantly improved handling and jumping of the car. Even if you initially do not feel this advantage when using this engine the first time, a back-to-back test with a standard sized head will change your mind.
The new design of the engine leads to a quite distinctive and cool new look. To be honest, when I have first seen this design, I did not like it very much as it looks so different. But the longer you look at it, the better it gets. It will surely turn some heads in the pits. Davide Ongaro recently texted me about the new LCG head“more steering and more stable in jumps”. That basically cuts a long story short! Look out for this amazing piece of high-end competition technology!
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