{"title":"ENGINES NITRO O.S.","description":"","products":[{"product_id":"os-max-55hz-r","title":"OS MAX 55HZ-R","description":"\u003cp\u003eO.S.MAX 55HZ-R\u003cbr\u003e\nThe latest engine in the 600\/50 helicopter class borrows much of its technology from the fabulous Max 91HZ-R, to provide class leading power under the most demanding of 3D manouevres. , The latest DRS system (Demand Regulator System) uses a crankcase pressure tap-off to pressurise the fuel tank via a one way valve. The pressurised fuel is then carfully regulated at the carburettor to provide the optimum mixture no matter what demands are placed on it. This is done by using the negative pressure in the carburettor venturi as part of the regulation system., The carburettor itself has three mixture controls for low\/mid and high speed settings. Once set for the fuel demands of your model\/type of fuel and muffler, there is rarely any need to change those settings again., The main mechanics of the engine itself are the same as the regular Max 55HZ. , Specification, Weight: 429g (15.13oz), Displacement: 8.93cc (0.55cu.in), Bore: 23mm (0.9in), Stroke: 21.5mm (0.8in), Power Output: 2.1PS @ 17000rpm, Practical RPM: 2,000 - 20,000\u003c\/p\u003e","brand":"Hubtech-RC","offers":[{"title":"Default Title","offer_id":58105587794294,"sku":"OS15650","price":289.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0997\/2547\/6214\/files\/osmax-55hz-r-engine-standard.jpg?v=1781701870"},{"product_id":"os-speed-91hz-r-3d","title":"OS SPEED 91HZ-R 3D","description":"\u003cp\u003eThis is the O.S. .91 HZ-R 3D Speed Competition 3D Helicopter Engine, with 61G carburetor. O.S. has taken high-performance, high-speed helicopter engines to the next stage of evolution with the introduction of the 91HZ-R 3D Speed. This engine offers unique features that give pilots a distinct advantage in 3D competition, like the Demand Regulator System, which supplies the carburetor with a consistent fuel supply regardless of the level of fuel in the tank, or the attitude of the helicopter. A re-designed combustion chamber has been shaped to match the big bore carburetor and advanced exhaust cylinder timing providing optimum performance, while the lightweight, CNC machined cooling head and black anodized crankcase provides efficient cooling in the harshest conditions.91HZ-R 3D Speed Features:\u003c\/p\u003e\n\n\u003cp\u003eDesigned for all-out, aggressive 3D competition.\u003cbr\u003e\nOffers incredibly stable mid-range torque for awesome 3D flight\u003cbr\u003e\nCarburetor inlet enlarged to 11.2 mm\u003cbr\u003e\nExhaust port timing set at 165°\u003cbr\u003e\nCombustion chamber shaped to match the big bore carburetor and advanced exhaust cylinder timing\u003cbr\u003e\nDemand Regulator System (DRS) guarantees a steady fuel supply to the carb at any attitude, on a full or empty tank and during the most abrupt throttle changes\u003cbr\u003e\nLightweight, machined cooling head\u003cbr\u003e\nCrankshaft counter weight has been modified to reduce vibration at high RPM\u003cbr\u003e\nBlack anodized crankcase offers better heat dissipation\u003c\/p\u003e\n\n\u003cp\u003eSpecifications:Displacement: 0.91 cu in (14.9cc)Bore: 1.09 in (27.7mm)Stroke: 0.98 in (24.8mm)Output: 3.6 hp @ 15,500 rpmPractical RPM: 2,000-16,500Weight: 21.2 oz (603g)Requirements: 10%-30% nitro fuel with at least 18% lubricant content\u003c\/p\u003e","brand":"Hubtech-RC","offers":[{"title":"Default Title","offer_id":58105587925366,"sku":"OS18642","price":459.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0997\/2547\/6214\/files\/b_1_ed834-standard.jpg?v=1781701872"},{"product_id":"os-max-105-hz-r","title":"OS MAX - 105 HZ-R","description":"\u003cp\u003eThis is the engine that precision aerobatic and 3D heli pilots have been waiting for! In order for 90-sized machines to nail huge maneuvers and hardcore, smackdown-style 3D it's all about power, and the 105HZ-R has it in abundance. Displacement has been increased by 15%, while a huge venturi rams air into the carburetor, producing massive power. Plus, they fit in a .90-sized mounting pattern.\u003c\/p\u003e\n\n\u003cp\u003eFeaturing the displacement of a 1.05 in the mounting space of a .90.\u003cbr\u003e\nMore displacement means more power, and these engines boost displacement by 15%!\u003cbr\u003e\nA huge venturi boosts output even further.\u003cbr\u003e\nThe machined, blue anodized heatsink head is light in weight, and cools the engine efficiently.\u003cbr\u003e\nAn extra feature on the 105HZ-R is the pressurized DRS (Demand Regulator System), which ensures consistent fuel flow regardless of the heli's attitude.\u003c\/p\u003e\n\n\u003cp\u003eSpecifications:\u003c\/p\u003e\n\n\u003cp\u003eDisplacement: 1.048 cu in (17.17 cc)\u003cbr\u003e\nBore: 1.442 in (29 mm)\u003cbr\u003e\nStroke: 1.024 in (26 mm)\u003cbr\u003e\nPractical RPM: 2.000-16,500\u003cbr\u003e\nOutput: 3.8 ps @ 15,000 rpm\u003cbr\u003e\n105HZ Weight: 21.03 oz (596 g)\u003cbr\u003e\n105HZ-R Weight: 21.46 oz (608 g)\u003c\/p\u003e","brand":"Hubtech-RC","offers":[{"title":"Default Title","offer_id":58105587958134,"sku":"OS18750","price":419.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0997\/2547\/6214\/files\/os105-standard-w55t43.jpg?v=1781701874"},{"product_id":"os-powerboost-pipe-105","title":"OS Powerboost pipe 105","description":"\u003cp\u003eHigh-performance silencer for OS MAX 105 HZ \/ HZ-R motors, this muffler also fits other models, e.g engines 91-105 with same OS type flange. Great performance.\u003c\/p\u003e","brand":"Hubtech-RC","offers":[{"title":"Default Title","offer_id":58105588121974,"sku":"OS72146000","price":175.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0997\/2547\/6214\/files\/ospipes_00-standard.jpg?v=1781701875"},{"product_id":"powerboost-pipe-55-iii","title":"Powerboost pipe 55 III","description":"\u003cp\u003eThis is the Powerboost III Pipe 55\u003cbr\u003e\nfor the O.S. Engines 55HZ Hyper, 55HZ-R and 50SX-H Hyper Helicopter Engines.\u003cbr\u003e\nFEATURES:\u003c\/p\u003e\n\n\u003cp\u003eAluminum construction with polished natural finish\u003cbr\u003e\nExcellent performance from high RPM maneuvers to idling and hovering\u003c\/p\u003e\n\n\u003cp\u003eINCLUDES:\u003c\/p\u003e\n\n\u003cp\u003ePowerboost III Pipe with Metal Gasket\u003cbr\u003e\nRubber Exhaust Tube, black in color\u003cbr\u003e\nTwo M3x35mm Socket Head Screws\u003cbr\u003e\nTwo M3 Nuts\u003cbr\u003e\nM4 Nipple\u003cbr\u003e\nM4x6 Plug Screw\u003cbr\u003e\nZip Tie\u003c\/p\u003e\n\n\u003cp\u003eSPECIFICATIONS:\u003c\/p\u003e\n\n\u003cp\u003eLength: 281mm\u003cbr\u003e\nDiameter: 43.6mm\u003cbr\u003e\nDistance Between Muffler Mounting Hole Centers:37mm\u003cbr\u003e\nExhaust Outlet Diameter: 9mm\u003c\/p\u003e","brand":"Hubtech-RC","offers":[{"title":"Default Title","offer_id":58105588154742,"sku":"72149000","price":119.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0997\/2547\/6214\/files\/b_0_c4513-standard.jpg?v=1781701876"},{"product_id":"os-max-105hz-r-with-powerboost-pipe-105-combo","title":"OS Max 105HZ-R with Powerboost Pipe 105 Combo","description":"\u003cp\u003eOS Max 105HZ-R with Powerboost 105 Pipe Combo\u003cbr\u003e\nSpecifications:\u003c\/p\u003e\n\n\u003cp\u003eDisplacement: 1.048 cu in (17.17 cc)\u003cbr\u003e\nBore: 1.442 in (29 mm)\u003cbr\u003e\nStroke: 1.024 in (26 mm)\u003cbr\u003e\nPractical rpm: 2,000-16,500\u003cbr\u003e\nOutput: 3.8 hp @ 15,000 rpm\u003cbr\u003e\nWeight: 21.03 oz (596 g)\u003c\/p\u003e","brand":"Hubtech-RC","offers":[{"title":"Default Title","offer_id":58105670664566,"sku":"OS18751","price":524.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0997\/2547\/6214\/files\/os-150hz-standard.jpg?v=1781702551"}],"url":"https:\/\/7tn0ci-jr.myshopify.com\/collections\/engines-nitro-o-s.oembed","provider":"Hubtech-RC","version":"1.0","type":"link"}