Red RC » OS Engines

April 16, 2024

O.S. Speed TR03 & MR04 1:8 Onroad Exhaust Set

Japanese engine manufacturer O.S has released a new TR03 (EFRA2196) exhaust for 1:8 Onroad use. It has been designed to give powerful characteristics at the mid-speed range after reviewing the internal shape of the current TR02 (EFRA2165) exhaust. A special coating applied to the surface also plays a part in this improved area of performance. Additionally, the engine sound that can be noticed from the moment the engine starts. Also released is the new MR04 manifold that can also be purchased as a set with the new TR03 exhaust. This manifold has a revised shape from the current product MR03-WC, and has the characteristic of extending smoothly to the high speed range without compromising the medium speed range. Both the exhaust and manifold have a buff finish and are laser engraved for easy identification.

Source: O.S. Engines [os-engines.co.jp]

March 14, 2024

Kato joins O.S Engines

Promising Japanese onroad and offroad talent Kouki Kato has been announced as a O.S Engines supported driver for 2024. The 17-year-old Japanese driver has put in some very impressive international results recently including making the Final on his debut at the 1:8 Onroad World Championship last November, after TQ’ing the final round of qualifying, and making the A-Main at the ultra competitive TITC electric touring car race in Thailand earlier this month. The reigning Japanese 1:8 Offroad Champion, he is also the double 1:10 Offroad National Champion, and his Team Associated Offroad and Infinity Onroad nitro programmes will be powered by O.S. Speed engines and Nitro Fuel.

Source: O.S. Engines [os-engines.co.jp]

March 6, 2024

O.S. Engines MAX-B21 1:8 Offroad/GT engine

Japanese engine manufacturer O.S. has introduce their new MAX-B21 which is intended for 1:8 Offroad 1:8 GT Onroad use. The MAX-B21 is easy to use from entry-level users to sports users and has excellent cost performance. Based on the O.S.SPEED series engine, it has a well-balanced combination of smooth speed and power delivery that can be used in both onroad and offroad racing situations.  The engine head is based on MAX-21XR-B VER.3, it has been reduced weight for better performance and finish in O.S.’s trademark blue colour. Also the shape of the combustion chamber of the inner head has been revised to improve combustion efficiency and response in the low speed range.  In addition has improved stable idling and an easy to adjust carburetor.

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September 7, 2023

O.S. MAX-12TG Ver.V 1:10 Touring Car engine

Japanese engine manufacturer O.S. has released the fifth generation of their long established MAX-12TG 1:10 touring car engine line. While following user requests and trends, OS have pursued ease of use and better performance with each successive generation, and now in its fifth generation the MAX-12TG Ver.V has been improved in various parts in order to demonstrate excellent power even in regulated race scenes. The first major change in appearance is the addition of one cooling fin to the bottom of the outer head. This improves engine cooling performance and enables stable performance. Also, by increasing the lightweight holes in the fins, the weight increase due to adding one fin is reduced. Furthermore, the head has a new laser design, making you aware that it is “Ver.V”. Another point that cannot be overlooked is the improved idling performance due to changes in crankshaft timing and improved carburetor. The shape of the combustion chamber in the inner head has been changed to improve combustion efficiency and increase torque in the mid-speed range.

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February 8, 2023

O.S. SPEED R2105 .21 Onroad Engine

O.S. Engines has released the latest version of its 1:8 Onroad World Championship winning engine, the R2105. The O.S. SPEED R21 series took the Mugen of Shoki Takahata to the World title in the US at the end of 2019 and in a year that he will try to defend that title in Japan at the Infinity International RC Speedway, the Japanese engine manufacturer has redesigned most of the parts that make up the R2105. To increase torque on high-grip track surfaces, a newly designed 9-port sleeve is adopted. O.S. SPEED’s traditional DLC coated crankshaft delivers linear power from low to top by changing the counter balance. The outer head has been mirror finish and by clear coat from the conventional colour to a silver head base has been adopted. By adopting a thrust plate made out of steel, wear due to interference between the connecting rod and the cover plate during rotation is reduced and engine life is improved.

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January 10, 2023

O.S.SPEED B21 Ongaro W.C

Famed Japanese engine manufacturer OS Engines are commemorating the addition of another World Championship title with the release of the special edition O.S.SPEED B21 Ongaro W.C engine. In Redovan, Spain, last September factory driver Davide Ongaro took the overall TQ using a B21 Ongaro Edition before going on to secure a back to back World title. Now this latest edition of the engine feature parts changed to during the successful defence of this World title. The outer head has a new design that improved by reducing weight and lowering the center of gravity for better balance. The laser design has also been brushed up and a graphic with a laurel wreath that honours the world champion has been applied. The φ6.5mm reducer used at the World Championships is also used, and both parts are made with Ongaro’s request colour jewellery blue anodised aluminium, creating a strong presence as a special model. The B21 Ongaro W.C special edition is only available in Combo Set with TB02 EFRA2089 (T-2090SC) + MB01-75 (M2000SC).

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August 10, 2022

O.S. SPEED B21 Adam Drake Edition 3

O.S. Engines has introduced its newest offroad engine with the release of the O.S. SPEED B21 Adam Drake Edition 3. The engine is the latest offering from the Japanese company’s collaboration with Offroad racing legend Adam Drake. By adopting a boost bypass processing for the crankcase, the engine runs more smoothly, and making it even easier to drive. Adam Drake’s signature colour, blue anodized aluminium is applied to the cutting part of the new outer head, and two-colour anodized aluminium with new design is used to reduce weight and lower the center of gravity for improved driving performance. You can make a choice of two different carburettor restrictor, 6.5II for buggy and 7.5 mainly for truggy.

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May 9, 2022

O.S. Speed R21 Euro II engine

O.S. Speed have introduced their updated R21 Euro 1/8th onroad engine with the release of the Euro II. Based on their successful Euro motor released three years ago, the engine sports a host of updates starting with the new crankshaft. To obtain more power the balance of the crankshaft was updated and now sports 3 tungsten counter weights, giving an improvement in the mid range. Another effect of this change is the return to idle has been improved. The liner now has an additional cooling hole on the exhaust side and the crankcase has been updated to cater for this. The last change is only cosmetic as the cooling head now has some updated laser graphics. Available as stand alone engine or as a combo with the TR01 exhaust and MR02 manifold for long straights in Europe.

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