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OS Engines News

Davide Ongaro joins O.S. for 2021

In a move that few would might have seen coming, 2018 (and… uh reigning) World Champion Davide Ongaro has graduated a step up and will be racing with a full factory O.S. deal in 2021 and beyond. Shimazaki san from O.S. had this to say, “We hope to show great performance of our products in the coming season together with him.”

Ongaro departs after at least 5 seasons under LRP power (Yes click the link, he has also grown since then!) amongst numerous titles including the last Neo at Harper Adams and perhaps the crowning achievement in any career or partnership, an IFMAR World Title. In a move similar to previous occasions we expect O.S. to produce a special ‘Ongaro’ edition engine later in 2021 cementing his role as their new #1 driver.

See O.S. Speed

O.S. Speed B21 Ronda Drake Edition nitro engine

Source: O.S. Engines

O.S. Engines have introduced the new B21 Ronda Drake Edition nitro engine. Based on the O.S. Speed B21 Adam Drake Edition 2 nitro engine, the Ronda Drake Edition engine is distinguished by a pink cooling head with Ronda’s graphics. The engine is available separately or as a combo set including the T-2090SC pipe and 85mm longer manifold.

O.S. Engines Max-21XR-B Ver.Ⅲ nitro engine

See: O.S. Engines

O.S. Engines have introduced the new Max-21XR-B Ver.Ⅲ nitro engine for 1/8th Buggy and GT cars. The power plant features a reduced piston weight improving throttle response while the connecting rod is the same used with the Speed engines in order to improve durability. The newly designed crankshaft also improves throttle response thanks to a new counter shape and timing. Always with a mind to offer more performance, the newly designed inner head features a redesigned the shape of the combustion chamber, improving response from low to medium speed range and achieve stable power characteristics in high speed range. The Max-21XR-B Ver.Ⅲ nitro engine comes with the double adjust J3-1 carburetor renowned for its ease of use and with two venturi inserts, a 6mm (orange) for the Off-road class and 7mm (yellow) for the GT class. The cooling head offers a new shape and a new design. Beside the single engine, O.S. also offers a combo package for Off-road use including the EFRA 2089 (T-2090SC) muffler and MB01-75 manifold and also a combo package for GT use including the EFRA 2042 (T-2060SC WN) muffler and MB01-70 manifold.

More photos here

O.S. Speed B21 Adam Drake Edition 2 nitro engine

Source: RC magazine (Facebook)

During the All Japan Hobby Show in Japan, O.S.Engines have unveiled the new O.S. Speed B21 Adam Drake Edition 2 nitro engine. No information about the Edition 2 is available but and information about the features and improvement should become available very soon.

O.S. Engines 4-shoe clutch shoe sets

See: O.S. Engines

O.S.Engines have introduced two new sets of 4-shoe clutch shoes for their 4-shoe clutch system. The sets consist of four carbon clutch shoes (hard) and four yellow clutch shoes (soft) designed to help to fine–tune clutch feel according to the surface, track conditions and driving style.

O.S. Speed B2103 Type S & Type R nitro engines

See: O.S. Engines

O.S. Engines have introduced two new nitro engines in the form of the Speed B2103 Type S and Speed B2103 Type R. First up is the B2103 Type S engine. This 3-port long-stroke engine offers a high torque at mid-low range with a sweet delivery and low consumption. The crankcase, the crankcase cap and the carburetor feature a new design. The new DLC-coated crankshaft has two tungsten counterweights for smooth rotation and better balancing. The B2103 Type S comes with a low–profile cooling head to provide better drivability and also vertical fins on the top to improve heat dissipation. An O-ring between the cooling head and the combustion camber insert reduces vibrations protect against dirt thanks to a better sealing. The new 22D carburetor guarantees high response and smooth acceleration.

Continue reading here

O.S. 1/8 buggy 4-shoe clutch system

See: O.S. Engines

O.S. Engines have introduced the new 4-shoe clutch system for 1/8 Nitro Buggy. Designed for O.S. engines, it provides smooth power delivery, is easy to tune, and lasts a very long time. The 4-shoe clutch system comes as set with three different sets of springs marked for easy identification, two set of different aluminium clutch shoes also marked to differentiate them easily, shim, washers, bearings, flywheel, flywheel nut and a 13T clutch bell. The 4-shoe clutch system will be available in October.

Yusuke Sugiura takes JMRCA Nitro Buggy title

See: O.S. Engines

The 2018 JMRCA Japanese Nitro Buggy Championships were held at the RC Land 23 track in Matsuzaka, Mie prefecture. Defending champion Yuusuke Sugiura (Kyosho) took the overall TQ and won easily the 60 minutes final by leading from the start to the finish line. Kenji Tsuruta (Mugen) and Juliya Kajiwara (Kyosho) rounded out the top 3.