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O.S.SPEED R21GT-II 1/8 GT Racing Engine Combo

The O.S.SPEED R21GT-II 1/8 GT Racing Engine Combo Set is a high-performance engine designed for the next generation of GT racing enthusiasts. This combo set, featuring the O.S.SPEED R21GT-II engine and a complete exhaust system, is a testament to O.S.SPEED's commitment to excellence. The engine has been evolved from its predecessor, the O.S.SPEED R21GT, which was renowned for its smooth operation and fuel efficiency. The R21GT-II builds upon this foundation, enhancing power feeling in the medium and low speed ranges through improved crankshaft counterbalance. This combination of power and efficiency makes it a top choice for racers seeking the ultimate performance.

Engine Specifications and Technical Details

The O.S.SPEED R21GT-II is a 3.49cc engine with a bore of 16.08mm and a stroke of 17.20mm, delivering an impressive 2.65 ps / 2.61 hp @ 34,000RPM. Its practical RPM range is 4,000-42,000, ensuring optimal performance across various racing conditions. The engine's weight is a mere 362g, making it lightweight and agile. Key features include a double-adjust type 22E(B) GT carburetor and a newly designed 7.0MM (RED) AL2 reducer. The combo set also includes a TB01 (EFRA2042) tuned silencer and MB01-70 manifold exhaust system, ensuring compliance with IFMAR regulations and providing a seamless racing experience.

Practical Uses and Target Audience

The O.S.SPEED R21GT-II 1/8 GT Racing Engine Combo Set is perfect for racers and enthusiasts who demand the best in performance and reliability. Its high power output, low weight, and smooth operation make it ideal for 1/8 scale GT racing. Whether you're competing in local races or aiming for the top of the leaderboard, this engine combo will give you the edge you need. The included accessories, such as the glow plug, reducer venturi, exhaust seal ring, and dust cap set, ensure a complete and hassle-free setup. With the O.S.SPEED R21GT-II, you're not just getting an engine; you're getting the power to dominate the track.