{"product_id":"protek-rc-aluminum-elliptical-samurai-321b-carburetor-restrictor-7-5mm-ptk-2525","title":"ProTek RC Aluminum \"Elliptical\" Samurai 321B Carburetor Restrictor (7.5mm)","description":"\u003cp\u003eThe ProTek RC Aluminum \"Elliptical\" Samurai 321B Carburetor Restrictor uses a 7.5mm oval venturi design to adjust airflow into the engine. Its elliptical shape is designed to provide improved fuel mileage and progressive power delivery, with smooth low-end response and increasing power as RPMs rise.\u003c\/p\u003e\u003ch3\u003eProduct Features\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eAluminum carburetor restrictor\u003c\/li\u003e\n\u003cli\u003eElliptical oval shape\u003c\/li\u003e\n\u003cli\u003e7.5mm diameter\u003c\/li\u003e\n\u003cli\u003eCompatible with Samurai 321B, OS V-Spec, Novarossi and RB carburetors\u003c\/li\u003e\n\u003cli\u003eDesigned to fine-tune engine power delivery and run time\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eA larger venturi generally increases top-end power for larger tracks, while a smaller venturi improves bottom-end throttle response and can help increase run time. Replacement restrictor o-rings are available separately under part number PTK-2517.\u003c\/p\u003e","brand":"ProTek RC","offers":[{"title":"Default Title","offer_id":46316607275242,"sku":"PTK-2525","price":7.39,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0703\/9723\/1338\/files\/PTK-2525_01.jpg?v=1790103964","url":"https:\/\/swflrcr.com\/products\/protek-rc-aluminum-elliptical-samurai-321b-carburetor-restrictor-7-5mm-ptk-2525","provider":"SWFLRC Raceway","version":"1.0","type":"link"}