{"product_id":"osmg1cj01-1-o-s-speed-b21-ad3-adam-drake-3-competition-21-nitro-engine-w-2100sc-pipe-broken-in-by-adam-drake-1","title":"OSMG1CJ01-1 O.S. Speed B21 AD3 Adam Drake 3 Competition .21 Nitro Engine w\/2100SC Pipe Broken In by Adam Drake","description":"\u003cp\u003eThe O.S. Speed B21 AD3 Adam Drake 3 Competition .21 Nitro Engine is the latest evolution of the legendary B21 race engine, developed in collaboration with multi-time ROAR Champion Adam Drake. Engineered for competitive 1\/8-scale nitro buggy racing, the AD3 delivers exceptionally smooth power, outstanding fuel efficiency, and championship-level performance.\u003c\/p\u003e\n\u003cp\u003eThis special OSMG1CJ01-1 version includes the O.S. 2100SC tuned pipe, 75mm manifold, and is professionally broken in by Adam Drake using his proven EBIS (Engine Break-In Service) oil bath process. The result is a race-ready engine with improved reliability, easier tuning, and consistent performance right out of the box.\u003c\/p\u003e\n\u003cp\u003eFeatures\u003c\/p\u003e\n\u003cul data-spread=\"false\"\u003e\n\u003cli\u003eProfessionally broken in by Adam Drake using the EBIS oil bath process\u003c\/li\u003e\n\u003cli\u003eO.S. Speed B21 AD3 competition .21 nitro engine\u003c\/li\u003e\n\u003cli\u003eIncludes O.S. 2100SC tuned pipe and 75mm manifold\u003c\/li\u003e\n\u003cli\u003eUpdated crankcase design for smoother, more linear power delivery\u003c\/li\u003e\n\u003cli\u003eRedesigned cylinder liner with optimized port timing\u003c\/li\u003e\n\u003cli\u003eDLC-coated crankshaft with larger double tungsten counterweight\u003c\/li\u003e\n\u003cli\u003eLightweight cooling head with a lower center of gravity\u003c\/li\u003e\n\u003cli\u003eSteel-lined rear cover plate for reduced friction and improved durability\u003c\/li\u003e\n\u003cli\u003eCeramic rear bearing for long-lasting performance\u003c\/li\u003e\n\u003cli\u003e21J carburetor for precise tuning\u003c\/li\u003e\n\u003cli\u003eIncludes 6.5mm and 7.0mm anodized carburetor reducers\u003c\/li\u003e\n\u003cli\u003eO.S. Speed P3 Gold glow plug included\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eSpecifications\u003c\/p\u003e\n\u003cul data-spread=\"false\"\u003e\n\u003cli\u003eDisplacement: 3.49cc (.21 cu in)\u003c\/li\u003e\n\u003cli\u003eBore: 16.4mm\u003c\/li\u003e\n\u003cli\u003eStroke: 16.55mm\u003c\/li\u003e\n\u003cli\u003eOutput: 2.61 HP @ 34,000 RPM\u003c\/li\u003e\n\u003cli\u003ePractical RPM Range: 4,000–42,000 RPM\u003c\/li\u003e\n\u003cli\u003eEngine Weight: 350g (12.35 oz)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003ePackage Includes\u003c\/p\u003e\n\u003cul data-spread=\"false\"\u003e\n\u003cli\u003e(1) O.S. Speed B21 AD3 Competition .21 Nitro Engine (EBIS Broken In)\u003c\/li\u003e\n\u003cli\u003e(1) O.S. 2100SC Tuned Pipe\u003c\/li\u003e\n\u003cli\u003e(1) 75mm Exhaust Manifold\u003c\/li\u003e\n\u003cli\u003e(1) Engine-to-Manifold Gasket\u003c\/li\u003e\n\u003cli\u003e(1) O.S. Speed P3 Gold Glow Plug\u003c\/li\u003e\n\u003cli\u003e(1) 21J Carburetor\u003c\/li\u003e\n\u003cli\u003e(1) 6.5mm Carburetor Reducer\u003c\/li\u003e\n\u003cli\u003e(1) 7.0mm Carburetor Reducer\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"O.S. SPEED","offers":[{"title":"Default Title","offer_id":50044071084319,"sku":"210000027877","price":729.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0897\/0426\/8063\/files\/pnbqtfkw2cuoqfcd9yjv.jpg?v=1745887963","url":"https:\/\/newsunracing.com\/es\/products\/osmg1cj01-1-o-s-speed-b21-ad3-adam-drake-3-competition-21-nitro-engine-w-2100sc-pipe-broken-in-by-adam-drake-1","provider":"New Sun Racing","version":"1.0","type":"link"}