{"product_id":"lrp32803","title":"Nitro Engine ZR.28 Spec. 4 Pullstart","description":"Due to modifications of the already great predecessor, the LRP ZR.28 Spec.4 Pullstart has been significantly improved in the carburettor vernier adjustment as well as in the cooling of the cylinder head. The Heavy-Duty CoolDownMax cylinder head that has already successfully been introduced with its bigger brother, now also serves in the ZR.30.\u003cp\u003e A completely new carburettor has been build-in for an even better adjustability especially when in at idle speed. The performance, especially when stationary, has been improved with this move. All in all, the ZR.28 Spec.4 offers more torque with better adjustability and improved responsiveness.\u003c\/p\u003e\u003cp\u003eOtherwise being a giant, it is a true midget in its dimensions. Due to its compact construction the engine can be used as a direct replacement to the .21 engines. The ZR.28 Spec.4 fits into all common .21 engine mounts.\u003c\/p\u003eFEATURES\u003cul\u003e\n\u003cli\u003eMASSIVE Big Block size - You cannot replace displacement with anything… but even more displacement!\u003c\/li\u003e\n\u003cli\u003eNew CoolDownMax cylinder head - Improved cooling and higher efficiency through new cooling fin arrangement\u003c\/li\u003e\n\u003cli\u003eXTEC PowerCarb3 15S-2 carburettor - Flow optimised carburettor with 9.0mm insert for maximum power and easy adjustability at the same time\u003c\/li\u003e\n\u003cli\u003eUniversal fit - Fits all major .21 engine mounts\u003c\/li\u003e\n\u003cli\u003e6 + 1 Ports\u003c\/li\u003e\n\u003cli\u003eFREE PLUG - FREE LRP Platinum \/ Iridium R5 glow plug included\u003c\/li\u003e\n\u003cli\u003eStandard burn room - Guarantees easy adjustment of the engine in all conditions\u003c\/li\u003e\n\u003cli\u003eXTEC T6 engine housing - Especially reinforced heavy duty engine housing for toughest offroad action\u003c\/li\u003e\n\u003cli\u003eMassive con rod - Extra reinforced con rod. Specially adjusted for .28 engines\u003c\/li\u003e\n\u003cli\u003eUltra strong pullstart - Pullstart specifically developed for big block engines\u003c\/li\u003e\n\u003cli\u003ePower Start capable - Prepared for the use of the LRP Power Start for starting the engine at the push of one button\u003c\/li\u003e\n\u003cli\u003eTorque you can barely handle\u003c\/li\u003e\n\u003c\/ul\u003eTECHNICAL DATA\u003cbr\u003e Cubic capacity.28 (4.57 ccm)\u003cbr\u003e Bore18.50mm\u003cbr\u003e Hub17.00mm\u003cbr\u003e Power3.93 HP*\u003cbr\u003e RPM33.900 RPM*\u003cbr\u003e Number of ports6 + 1\u003cbr\u003e Glow PlugLRP Standard R5 (No. 35051)\u003cbr\u003e CarburetorXTEC PowerCarb3 15S-2 with 9mm Venturi\u003cbr\u003e Weight420g\u003cbr\u003e Class1\/8th Offroad Buggys\/Truggys\u003cbr\u003e *Figures may vary depending on used fuel, muffler and tuning\u003cp\u003e \u003c\/p\u003e","brand":"LRP","offers":[{"title":"Default Title","offer_id":65445082431837,"sku":"LRP32803","price":159.99,"currency_code":"GBP","in_stock":true}],"url":"https:\/\/www.3d-rc.co.uk\/products\/lrp32803","provider":"3D-RC.co.uk","version":"1.0","type":"link"}