{"product_id":"ultimate-mxz-21-engine-combo-with-airmax-filter-efra-2142-super-strong-one-piece-pipe-ur3401-mxzc3","title":"ULTIMATE - MXZ .21 Engine Combo with Airmax Filter \u0026 EFRA 2142 Super Strong One-Piece Pipe (UR3401-MXZC3)","description":"\u003cp\u003eThe Ultimate MXZ is a 3-transfer, long-stroke .21 off-road engine built by O.S. Engines. It is tuned for smooth, linear power and lower fuel consumption, making it a great choice for club and race drivers alike.\u003c\/p\u003e\u003ch4\u003eFeatures\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eBuilt by O.S. Engines\u003c\/li\u003e\n\u003cli\u003eSmooth, linear power with low fuel consumption\u003c\/li\u003e\n\u003cli\u003eLaser-finished 8-fin cooling head\u003c\/li\u003e\n\u003cli\u003eO.S. 21J3 carburettor with cooled needle holder\u003c\/li\u003e\n\u003cli\u003eFlowMax 6.5mm venturi\u003c\/li\u003e\n\u003cli\u003eUltimate Airmax air filter included\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eSpecifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDisplacement:\u003c\/strong\u003e 3.49cc (.21)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePower:\u003c\/strong\u003e 2.55 hp @ 34,000 rpm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBore x stroke:\u003c\/strong\u003e 16.27 x 16.80mm (long stroke)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSleeve:\u003c\/strong\u003e 3 + 1 ports, aluminium\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRPM range:\u003c\/strong\u003e 4,000 – 40,500 rpm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCrankshaft:\u003c\/strong\u003e 14mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCarburettor:\u003c\/strong\u003e O.S. 21J3 with cooled needle holder and adjustable barrel puller\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVenturi:\u003c\/strong\u003e FlowMax 6.5mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGlow plug:\u003c\/strong\u003e P3\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExhaust:\u003c\/strong\u003e Rear\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 350g\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eIn the box\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eUltimate MXZ .21 engine\u003c\/li\u003e\n\u003cli\u003eUltimate Airmax air filter set\u003c\/li\u003e\n\u003cli\u003eUltimate EFRA 2142 Super Strong one-piece off-road pipe (pipe welded to manifold), with springs and gaskets\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eNeeded to complete\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eGlow plug (P3 recommended)\u003c\/li\u003e\n\u003cli\u003eNitro fuel\u003c\/li\u003e\n\u003cli\u003eClutch and flywheel to suit your car\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003ePart number: UR3401-MXZC3\u003c\/p\u003e","brand":"Ultimate Racing","offers":[{"title":"Default Title","offer_id":67779902996669,"sku":"UR3401-MXZC3","price":715.0,"currency_code":"NZD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0575\/5571\/4237\/files\/ultimate-mxz-nitro-engine-3-transfers-square-stroke_84a036ba-a511-478c-a063-42a1034ca520.jpg?v=1792014375","url":"https:\/\/www.capitalrc.co.nz\/products\/ultimate-mxz-21-engine-combo-with-airmax-filter-efra-2142-super-strong-one-piece-pipe-ur3401-mxzc3","provider":"Capital RC","version":"1.0","type":"link"}