{"product_id":"o-s-18645-91hz-r-3d-speed-black-61g-w-powerboost-pipe","title":"O.S 18645 91HZ-R 3D Speed Black 61G w\/Powerboost Pipe","description":"\u003cp align=\"left\"\u003e\u003cfont size=\"1\"\u003eO.S 18645 91HZ-R 3D Speed Black 61G w\/Powerboost Pipe\u003c\/font\u003e\u003c\/p\u003e\n\u003cp align=\"left\"\u003e\u003cfont size=\"1\"\u003eThis is the O.S. Engines 91 HZ-R 3D Speed Helicopter Engine in Black with the 91 PowerBoost Tuned Pipe.\u003c\/font\u003e\u003c\/p\u003e\n\u003cp align=\"left\"\u003e\u003cfont size=\"1\"\u003e****** Because of the competition nature of this engine,******\u003c\/font\u003e\u003c\/p\u003e\n\u003cp align=\"left\"\u003e\u003cfont size=\"1\"\u003e******it is NOT covered by the O.S. 2 Year Warranty.******\u003c\/font\u003e\u003c\/p\u003e\n\u003cp align=\"left\"\u003e\u003cfont size=\"1\"\u003e\u003cimg border=\"0\" src=\"\/lib\/trendtimes\/arrowbullet.gif\"\u003e\u003c\/font\u003e\u003cfont color=\"#0000c6\" size=\"2\"\u003e Features\u003c\/font\u003e\u003c\/p\u003e\n\u003cul style=\"COLOR: rgb(226,226,226)\" type=\"square\"\u003e\n\u003cli\u003e\n\u003cp style=\"MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt\" align=\"left\"\u003e\u003cfont color=\"#000000\" size=\"1\"\u003eO.S 18645 91HZ-R 3D Speed Black 61G w\/Powerboost Pipe\u003c\/font\u003e \u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp style=\"MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt\" align=\"left\"\u003e\u003cfont color=\"#000000\" size=\"1\"\u003eDesigned for all-out 3D competition\u003c\/font\u003e \u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp style=\"MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt\" align=\"left\"\u003e\u003cfont color=\"#000000\" size=\"1\"\u003eDRS (Demand Regulator System) ensures a steady fuel supply for 3D flights\u003c\/font\u003e \u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp style=\"MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt\" align=\"left\"\u003e\u003cfont color=\"#000000\" size=\"1\"\u003e165� exhaust timing for optimal horsepower and stable hovering\u003c\/font\u003e \u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp style=\"MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt\" align=\"left\"\u003e\u003cfont color=\"#000000\" size=\"1\"\u003eNewly designed combustion chamber shaped to match the big bore carburetor and advanced exhaust cylinder timing\u003c\/font\u003e \u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp style=\"MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt\" align=\"left\"\u003e\u003cfont color=\"#000000\" size=\"1\"\u003e61G Big Bore twin needle carburetor is designed to develope stable horsepower at 70-80% throttle which is widely used in 3D flight PowerBoost pipe is constructed of polished natural finish aluminum and was developed exclusively for flights with 90 size helicopters\u003c\/font\u003e \u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp align=\"left\"\u003e\u003cfont size=\"1\"\u003e\u003cimg border=\"0\" src=\"\/lib\/trendtimes\/arrowbullet.gif\"\u003e \u003c\/font\u003e\u003cfont color=\"#0000c6\" size=\"2\"\u003eSpecifications\u003c\/font\u003e\u003c\/p\u003e\n\u003cul style=\"COLOR: rgb(226,226,226)\" type=\"square\"\u003e\n\u003cli\u003e\n\u003cp style=\"MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt\" align=\"left\"\u003e\u003cfont color=\"#000000\" size=\"1\"\u003e  Engine-\u003c\/font\u003e \u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp style=\"MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt\" align=\"left\"\u003e\u003cfont color=\"#000000\" size=\"1\"\u003eDisplacement: 0.91cu in (14.9cc)\u003c\/font\u003e \u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp style=\"MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt\" align=\"left\"\u003e\u003cfont color=\"#000000\" size=\"1\"\u003eBore: 1.091\" (27.7mm)\u003c\/font\u003e \u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp style=\"MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt\" align=\"left\"\u003e\u003cfont color=\"#000000\" size=\"1\"\u003eStroke: 0.976\" (24.8mm)\u003c\/font\u003e \u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp style=\"MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt\" align=\"left\"\u003e\u003cfont color=\"#000000\" size=\"1\"\u003ePower Output: 3.6hp \/ 15,500 RPM\u003c\/font\u003e \u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp style=\"MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt\" align=\"left\"\u003e\u003cfont color=\"#000000\" size=\"1\"\u003ePractical RPM Range: 2,000 - 16,000\u003c\/font\u003e \u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp style=\"MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt\" align=\"left\"\u003e\u003cfont color=\"#000000\" size=\"1\"\u003eWeight (w\/o Muffler): 21.27oz (603g)\u003c\/font\u003e \u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp style=\"MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt\" align=\"left\"\u003e\u003cfont color=\"#000000\" size=\"1\"\u003eCrankshaft Size: 5\/16-24\u003c\/font\u003e \u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp style=\"MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt\" align=\"left\"\u003e\u003cfont color=\"#000000\" size=\"1\"\u003e  Carburetor Adjustments-\u003c\/font\u003e \u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp style=\"MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt\" align=\"left\"\u003e\u003cfont color=\"#000000\" size=\"1\"\u003eHigh Speed Needle Valve: Turn approximately 30� (3-4 clicks) during initial adjustments, then approximately 15� (1-2 clicks) when making final adjustments\u003c\/font\u003e \u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp style=\"MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt\" align=\"left\"\u003e\u003cfont color=\"#000000\" size=\"1\"\u003eMedium Speed Needle Valve: Turn approximately 30� (3-4 clicks) at a time\u003c\/font\u003e \u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp style=\"MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt\" align=\"left\"\u003e\u003cfont color=\"#000000\" size=\"1\"\u003eIdle Mixture Control Screw: Turn approximately 5� at a time, turn left to enrich idle mixture and right to lean mixture\u003c\/font\u003e \u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp style=\"MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt\" align=\"left\"\u003e\u003cfont color=\"#000000\" size=\"1\"\u003eHeight from crankcase bottom to top of cylinder head: 3.9\" (100mm)\u003c\/font\u003e \u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp style=\"MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt\" align=\"left\"\u003e\u003cfont color=\"#000000\" size=\"1\"\u003eHeight\/bottom of mounting tab to top of cylinder head: 3.1\" (79mm)\u003c\/font\u003e \u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp style=\"MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt\" align=\"left\"\u003e\u003cfont color=\"#000000\" size=\"1\"\u003eDistance between mounting holes same side: 0.98\" (25mm)\u003c\/font\u003e \u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp style=\"MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt\" align=\"left\"\u003e\u003cfont color=\"#000000\" size=\"1\"\u003eDistance between mounting holes opposite side: 2\" (52mm)\u003c\/font\u003e \u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp style=\"MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt\" align=\"left\"\u003e\u003cfont color=\"#000000\" size=\"1\"\u003eDistance between muffler screw holes: 1.6\" (42mm)\u003c\/font\u003e \u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp style=\"MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt\" align=\"left\"\u003e\u003cfont color=\"#000000\" size=\"1\"\u003eDistance\/bottom of mounting tab to muffler screw holes: 1.8\" (42.8mm)\u003c\/font\u003e \u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp style=\"MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt\" align=\"left\"\u003e\u003cfont color=\"#000000\" size=\"1\"\u003eDistance throttle lever to center of engine: 1.6\" (42mm)\u003c\/font\u003e \u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp style=\"MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt\" align=\"left\"\u003e\u003cfont color=\"#000000\" size=\"1\"\u003eLength from front bearing to center of engine: 2.2\" (56.4mm)\u003c\/font\u003e \u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp style=\"MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt\" align=\"left\"\u003e\u003cfont color=\"#000000\" size=\"1\"\u003eLength from front bearing to backplate: 3.3\" (83.8mm)\u003c\/font\u003e \u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp style=\"MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt\" align=\"left\"\u003e\u003cfont color=\"#000000\" size=\"1\"\u003eLength from backplate to end of crankshaft: 4.6\" (118mm)\u003c\/font\u003e \u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp style=\"MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt\" align=\"left\"\u003e\u003cfont color=\"#000000\" size=\"1\"\u003eLength from backplate to center of engine: 1.1\" (27.4mm)\u003c\/font\u003e \u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp style=\"MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt\" align=\"left\"\u003e\u003cfont color=\"#000000\" size=\"1\"\u003eWidth of crankcase below mounting tabs: 1.7\" (43mm)\u003c\/font\u003e \u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp style=\"MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt\" align=\"left\"\u003e\u003cfont color=\"#000000\" size=\"1\"\u003eWidth between mounting tabs: 2.4\" (61mm)\u003c\/font\u003e \u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp style=\"MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt\" align=\"left\"\u003e\u003cfont color=\"#000000\" size=\"1\"\u003e  Pipe-\u003c\/font\u003e \u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp style=\"MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt\" align=\"left\"\u003e\u003cfont color=\"#000000\" size=\"1\"\u003eLength: 12.3\" (313mm)\u003c\/font\u003e \u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp style=\"MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt\" align=\"left\"\u003e\u003cfont color=\"#000000\" size=\"1\"\u003eDiameter: 2.0\" (50mm) at engine attachment point\u003c\/font\u003e \u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp style=\"MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt\" align=\"left\"\u003e\u003cfont color=\"#000000\" size=\"1\"\u003eExhaust Outlet Diameter: 0.20\" (5mm)\u003c\/font\u003e \u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp style=\"MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt\" align=\"left\"\u003e\u003cfont color=\"#000000\" size=\"1\"\u003eWeight: 7.9oz (225g)\u003c\/font\u003e \u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp align=\"left\"\u003e\u003cfont size=\"1\"\u003e\u003cimg border=\"0\" src=\"\/lib\/trendtimes\/arrowbullet.gif\"\u003e \u003c\/font\u003e\u003cfont color=\"#0000c6\" size=\"2\"\u003eContents\u003c\/font\u003e\u003c\/p\u003e\n\u003cul style=\"COLOR: rgb(226,226,226)\" type=\"square\"\u003e\n\u003cli\u003e\n\u003cp style=\"MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt\" align=\"left\"\u003e\u003cfont color=\"#000000\" size=\"1\"\u003e91 HZ-R 3D Speed Helicopter Engine, with PowerBoost Pipe, Exhaust Tube and Mounting Hardware, #8 Glowplug, Check Valve, 0.2mm Head Gasket and Instruction Manual\u003c\/font\u003e \u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp align=\"left\"\u003e\u003cfont size=\"1\"\u003e\u003cimg border=\"0\" src=\"\/lib\/trendtimes\/arrowbullet.gif\"\u003e \u003c\/font\u003e\u003cfont color=\"#0000c6\" size=\"2\"\u003eRequirements\u003c\/font\u003e\u003c\/p\u003e\n\u003cul style=\"COLOR: rgb(226,226,226)\" type=\"square\"\u003e\n\u003cli\u003e\n\u003cp style=\"MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt\" align=\"left\"\u003e\u003cfont color=\"#000000\" size=\"1\"\u003eFuel: 10%-30% nitromethane with at least 18% lubricant. Lubricants may be either castor or synthetic oil or castor\/synthetic blend.\u003c\/font\u003e \u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp style=\"MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt\" align=\"left\"\u003e\u003cfont color=\"#000000\" size=\"1\"\u003eField Equipment: glow starter, fuel bulb, fuel can filter, fuel pump hexagonal starting shaft (depending on brand of helicopter) electric starter, battery and fuel tubing\u003c\/font\u003e \u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Trend Times Toys \u0026 Hobbies","offers":[{"title":"Default Title","offer_id":43579635564601,"sku":"18645","price":742.49,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0665\/3358\/9049\/files\/o-s-18645-91hz-r-3d-speed-black-61g-w-powerboost-pipe-33.jpg?v=1720892621","url":"https:\/\/www.trendtimes.com\/products\/o-s-18645-91hz-r-3d-speed-black-61g-w-powerboost-pipe","provider":"Trend Times Toy Stores","version":"1.0","type":"link"}