{"product_id":"os-engines-max-105hz-r-nitro-helicopter-engine-1-05-size-w-power-boost-pipe","title":"OS Engines MAX 105HZ-R Nitro Helicopter Engine, 1.05 Size w\/ Power Boost Pipe (Special order, enquire within)","description":"\u003ch2\u003eEnjoy huge power and performance with the compact 105HZ-R!\u003c\/h2\u003e\n\u003cp\u003eThese are the engines 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 both the\u003cspan\u003e \u003c\/span\u003e\u003ca href=\"https:\/\/www.osengines.com\/engines-heli\/osmg1960\/index.html\"\u003e105HZ\u003c\/a\u003e\u003cspan\u003e \u003c\/span\u003eand 105HZ-R have 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\u003cul\u003e\n\u003cli\u003eFeaturing the displacement of a 1.05 in the mounting space of a .90.\u003c\/li\u003e\n\u003cli\u003eMore displacement means more power, and these engines boost displacement by 15%!\u003c\/li\u003e\n\u003cli\u003eA huge venturi boosts output even further.\u003c\/li\u003e\n\u003cli\u003eThe machined, blue anodized heatsink head is light in weight, and cools the engine efficiently.\u003c\/li\u003e\n\u003cli\u003eAn extra feature on the 105HZ-R is the DRS (Demand Regulator System), which ensures consistent fuel flow regardless of the heli's attitude.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eStock Number:\u003c\/b\u003e\u003cspan\u003e OSMG1961\u003c\/span\u003e\u003cbr\u003e\u003cb\u003eDisplacement:\u003c\/b\u003e\u003cspan\u003e 1.048 cu in (17.17 cc)\u003c\/span\u003e\u003cbr\u003e\u003cb\u003eBore:\u003c\/b\u003e\u003cspan\u003e 1.442 in (29 mm)\u003c\/span\u003e\u003cbr\u003e\u003cb\u003eStroke:\u003c\/b\u003e\u003cspan\u003e 1.024 in (26 mm)\u003c\/span\u003e\u003cbr\u003e\u003cb\u003ePractical rpm:\u003c\/b\u003e\u003cspan\u003e 2,000-16,500\u003c\/span\u003e\u003cbr\u003e\u003cb\u003eOutput:\u003c\/b\u003e\u003cspan\u003e 3.75 hp @ 15,000 rpm\u003c\/span\u003e\u003cbr\u003e\u003cb\u003eWeight:\u003c\/b\u003e\u003cspan\u003e 21.03 oz (596 g)\u003c\/span\u003e\u003c\/p\u003e","brand":"OMP","offers":[{"title":"Default Title","offer_id":332161744913,"sku":"OSM18751","price":730.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0218\/4678\/files\/Power-Boost-Pipe-_Special-order_-enquire-within_-OMP-35094234.jpg?v=1743657084","url":"https:\/\/mad4heli.com\/ko-us\/products\/os-engines-max-105hz-r-nitro-helicopter-engine-1-05-size-w-power-boost-pipe","provider":"Mad 4 Heli","version":"1.0","type":"link"}