{"product_id":"o-s-speed-12xz-spec-iii","title":"O.S.SPEED 12XZ SPEC III","description":"\u003cp\u003eThis is the O.S. Engines 12XZ Speed Spec III .12 Nitro Touring Car Engine. O.S. Engineers have taken superior Speed Spec performance to the next level. In addition to smoother acceleration from idle to full throttle, the 12XZ Speed Spec III also has increased low-to mid-range torque. Drivers will still enjoy the same impressive top end speeds that 12XZ Speed Spec engines are known for — with the bonus of improved fuel mileage. In fact, acclaimed on-road champion racer Takaaki Shimo utilized all of the 12XZ Speed Spec III’s advantages to claim victory in the 2012 Japan Nationals.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIn-Depth Features:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCooling Head: \u003c\/strong\u003eThe outer head is 1mm shorter and sits 6mm lower over the crankcase. This decreases the engine's overall weight while also lowering the CG and aiding in cooling. \u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCarburetor: \u003c\/strong\u003eThe redesigned 12F2(B) carburetor delivers sharp acceleration and instant throttle response. It also allows for easier, more reliable tuning. \u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCrankshaft: \u003c\/strong\u003eThis crankshaft features DLC coating, pressed-in Tungsten weights and ceramic rear ball bearing. \u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCylinder\/Piston: \u003c\/strong\u003eThe cylinders liner's outer diameter is slightly thicker (0.5mm), with redesigned ports for better air\/fuel flow that boosts mid-speed torque and extends fuel mileage. The piston features a tapered surface with a depression that works with the button to maximize combustion and power. \u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eFeatures:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003c\/strong\u003eRedesigned head button for better performance and improved acceleration\u003c\/li\u003e\n\u003cli\u003eUpdated cylinder liner and piston improve mid speed torque and fuel mileage\u003c\/li\u003e\n\u003cli\u003eThe slide valve's shape allows for a smoother flow of fuel and air\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eSpecifications: \u003cbr\u003eDisplacement: \u003c\/strong\u003e0.128\u003cstrong\u003e \u003c\/strong\u003ecu in (2.1cc) \u003cbr\u003e\u003cstrong\u003eBore: \u003c\/strong\u003e0.543in (13.8mm) \u003cbr\u003e\u003cstrong\u003eStroke: \u003c\/strong\u003e0.55in (14.0mm) \u003cbr\u003e\u003cstrong\u003ePractical RPM Range: \u003c\/strong\u003e5,000-44,000 \u003cbr\u003e\u003cstrong\u003eOutput: \u003c\/strong\u003e1.73hp @ 35,000 RPM \u003cbr\u003e\u003cstrong\u003eWeight: \u003c\/strong\u003e7.9oz (225g) \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIncludes:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003c\/strong\u003e12XZ Speed Spec III Engine\u003c\/li\u003e\n\u003cli\u003e12F2(B) carburetor\u003c\/li\u003e\n\u003cli\u003eRP6 glow plug\u003c\/li\u003e\n\u003cli\u003eExhaust seal ring\u003c\/li\u003e\n\u003cli\u003eDust cap set\u003c\/li\u003e\n\u003cli\u003e5.5mm red carburetor reducer (venturi) \u003c\/li\u003e\n\u003c\/ul\u003e","brand":"O.S. ENGINES","offers":[{"title":"Default Title","offer_id":773817603,"sku":"OSM11685","price":295.0,"currency_code":"EUR","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0538\/6357\/products\/osmg1992-main-lg.jpg?v=1527155592","url":"https:\/\/ricercgr.com\/en\/products\/o-s-speed-12xz-spec-iii","provider":"RACERC","version":"1.0","type":"link"}