{"product_id":"lrp-zz-21s-sport-competition-3-5cc-21-off-road-nitro-engine-davide-ongaro-world-champion-edition-lrp32113","title":"LRP ZZ.21s Sport Competition 3.5cc (.21) Off Road Nitro Engine (Davide Ongaro World Champion Edition) LRP32113","description":"\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eThe ZZ.21s Sport Competition Off Road Nitro Engine from LRP is a high-performance powerplant developed for serious off-road racers. Designed as the Davide Ongaro World Champion Edition, this .21 engine delivers race-proven performance, durability, and efficiency. Built with advanced materials and innovative engineering, it offers the power and reliability demanded in competitive conditions.\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eAbout the ZZ.21s Sport Engine\u003c\/strong\u003e\u003c\/h3\u003e\n\u003ch4\u003e\u003cstrong\u003eCoolDownMax Cylinder Head\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003eThe redesigned CoolDownMax cylinder head improves cooling efficiency through an optimized cooling fin arrangement. This enhanced airflow helps maintain stable operating temperatures, even during long main events. Improved thermal management translates into consistent performance and extended engine life under extreme off-road conditions.\u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003eXTEC T6 Reinforced Engine Housing\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003eThe XTEC T6 engine housing is specially reinforced for heavy-duty off-road racing. Its robust construction increases durability and structural rigidity, allowing the engine to withstand harsh landings, vibrations, and high-impact track surfaces. This added strength ensures dependable performance in the most demanding race environments.\u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003eXTEC Heat-Insulated WorksTeam Carburetor\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003eEquipped with the XTEC heat-insulated WorksTeam carburetor, this engine delivers precise throttle response and consistent fuel delivery. The included 6.5mm and 7.5mm aluminum venturi inserts allow fine-tuning to suit different track conditions and driving styles. Combined with the turbo combustion chamber design, it provides strong acceleration and optimized combustion efficiency.\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eFeatures:\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eDavide Ongaro World Champion Edition\u003c\/li\u003e\n  \u003cli\u003eCoolDownMax cylinder head design\u003c\/li\u003e\n  \u003cli\u003eOptimized cooling fin arrangement\u003c\/li\u003e\n  \u003cli\u003e8 + 2 port configuration\u003c\/li\u003e\n  \u003cli\u003eXTEC T6 reinforced engine housing\u003c\/li\u003e\n  \u003cli\u003eHeat-insulated WorksTeam carburetor\u003c\/li\u003e\n  \u003cli\u003e6.5mm aluminum venturi insert\u003c\/li\u003e\n  \u003cli\u003e7.5mm aluminum venturi insert\u003c\/li\u003e\n  \u003cli\u003eTurbo combustion chamber design\u003c\/li\u003e\n  \u003cli\u003eUniversal fit for major .21 engine mounts\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003eIncludes:\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e(1) ZZ.21s Sport Competition 3.5cc (.21) Off Road Nitro Engine (Davide Ongaro World Champion Edition)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003eSpecifications:\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eDisplacement.21 cu.in (3.5cc)Recommended Application1\/8 Off-RoadBore0.64in (16.2mm)Stroke0.67in (16.9mm)Intake Ports7Exhaust Ports1Carburetor TypeVCX3-A Aluminum Short Needle 9mmGlow PlugREDS TS3\/TS4Recommended Fuel25–30% Nitro, 8–10% OilBreak-In Fuel12% OilWeight12.17oz (345g) \u003c\/p\u003e","brand":"AMAIN DISTRIBUTING","offers":[{"title":"Default Title","offer_id":47864362598553,"sku":"LRP32113","price":338.46,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0500\/9303\/1577\/files\/f51a5461-b6fc-41b5-a03d-8ed5e78e13a8_f761d479_lrp32113.jpg?v=1780018954","url":"https:\/\/worldofrcparts.com\/en-ca\/products\/lrp-zz-21s-sport-competition-3-5cc-21-off-road-nitro-engine-davide-ongaro-world-champion-edition-lrp32113","provider":"World of R\/C Parts \u0026 Supplies","version":"1.0","type":"link"}