O.S. Engine introduce the 8S low-profile cooling head for the R2101 on-road engine. Being of a shorter design with only 8 ribs the cooling head makes for faster engine heat-up and less temperature loss at speed in cold ambient temperatures. The part is a direct replacement for the engine’s stock cooling head.
Source: O.S. Engine [os-engines.co.jp]
O.S. Engine introduce the O.S. Speed R2101 .21 on-road engine. Building on the winning heritage of the 21ZX-R the newly developed engine is of a 7+3 port design, and comes with a redesigned liner and piston for improved fuel economy, a new crankshaft and a new cooling head. A pre-production version of the engine was used by Mugen’s Takaaki Shimo to win the Pre-Worlds race back in May with the actual production engine will be used by the O.S. team at the upcoming Worlds next month.
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New from O.S. Engine comes the 12TG VII(P). Featuring a new two-piece head, slide valve carburettor and ROAR-legal rear exhaust design the .12 engine is designed for competition level stadium trucks and the like.
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O.S. have introduced two new 21XZ-R engines for 1/8 scale on-road racing with both featuring superb runtime. Engineered for added horsepower and faster lap times, the 21XZ-R Speed performed well at the 1/8 Scale On-Road Worlds in Miami, Florida with Team drivers coming home in 4th and 5th place with production models. The motor features a redesigned crankcase and carb to produce smoother transitions and higher speeds while the 21M slide-valve carb features 4 adjustable control settings, including a low-end metering needle for improved torque and fuel economy. A more-balanced conrod reduces vibration and wear. Equipped with many of the same performance features as the .21XZ-R Speed ABC, the 21XZ-R VII offers explosive acceleration and top-end for race-winning potential at a more economical price. It combines aggressive timing with easy starting so drivers can unleash its race-winning potential right out of the box, while the cylinder liner boasts 7 scavenger ports and three exhaust ports. Both engines are available in early August.
View the full engine specs here
O.S. Speed have released their latest 1/8th buggy engine, the small block 19XZ-B. A 3.1cc engine, it produces similar power to the 3.5cc version, delivers the power smoothly but most importantly gives much better fuel consumption than the larger displacement engine.
Source: O.S. Speed [osspeed.com]
As revealed at this year’s toy fair Hot Bodies have released their new 21XZ-B Hara Edition engine. Based on the O.S. Speed motor that Hara used to take a close 2nd place at last year’s World Championships in Pattaya this limited edition engine features a new lighter crankshaft, modified to improve response and improve torque. It has then been DLC coated for better fuel flow and increased durability. The low center of gravity cooling head is also new, featuring limited edition graphics and finally the latest version black anodised carburetor is included, with a 6mm venturi it gives an excellent balance of power and fuel economy.
After his recent success qualifying 2nd and finishing 3rd at the Xceed Asia race in Shanghai China Serpent 1:10 GP team driver Per-Ola “Peo” Hard from Sweden has decided to join the OS Engines Japan Team for 2011 season. The European Championship finalist and current Swedish National Cup Champion is excited about the new cooperation with OS Engines and is set to race and promote the OS Engines product both on the track and in the pits.
Source: OS Engines [os-engines.co.jp]
O.S Speed have released the next incarnation of their World Championship winning buggy engine with the release of the 21XZ-B. This 3-port engine features smoother power delivery and an 8% improvement in fuel efficiency. The motor sports a new hardened and lightened crankshaft that uses tungsten weights for balancing, and this is mounted inside ceramic bearings for reduced rolling resistance. The cooling head has also received some attention, being lowered by 9mm and lightened through the use of holes to help lower its centre of gravity.
View another image of the engine here
