{"product_id":"rotrex-c3891-supercharger-black-edition-head-unit-2420","title":"Rotrex C38-91 SuperCharger Black Edition Head Unit (2420)","description":"\u003ch2\u003eRotrex C38-91 Supercharger Black Edition Head Unit\u003c\/h2\u003e\n\n\u003cp\u003eThe \u003cstrong\u003eRotrex C38-91 Supercharger Black Edition Head Unit\u003c\/strong\u003e is a premium Rotrex centrifugal supercharger head unit engineered for higher-output performance applications where increased airflow, consistent boost, and reliable power delivery are required. Designed around Rotrex's patented high-speed planetary traction drive, this head unit delivers smooth, responsive boost, excellent efficiency, low mechanical noise, and reliable power delivery without the lag associated with exhaust-driven turbocharger systems.\u003c\/p\u003e\n\n\u003cp\u003eFor over 25 years, Rotrex has pushed the limits of forced induction performance with compact, efficient centrifugal superchargers capable of supporting everything from small-displacement street cars to extreme builds exceeding 1200 HP. Every Rotrex supercharger is developed, manufactured, assembled, and tested in Denmark to meet strict quality and performance standards.\u003c\/p\u003e\n\n\u003cp\u003eThe Black Edition adds a stealth black finish for a cleaner, more aggressive engine bay appearance while retaining proven Rotrex performance.\u003c\/p\u003e\n\n\u003ch3\u003eRotrex Centrifugal Supercharger Advantages\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAcceleration and Power Delivery:\u003c\/strong\u003e Rotrex units are designed to provide strong boost at low and mid-range engine speeds for excellent throttle response, smooth acceleration, and a broad, usable powerband.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePatented Traction Drive Reliability:\u003c\/strong\u003e The patented Rotrex planetary traction drive uses rolling contact to help reduce wear, vibration, and mechanical noise for outstanding durability.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCompact Installation:\u003c\/strong\u003e Rotrex superchargers are known for compact size and efficient packaging, giving builders more flexibility for custom brackets, piping, and belt routing.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePower Range:\u003c\/strong\u003e 354 – 720 hp\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMax Flow:\u003c\/strong\u003e 0.63 kg\/s (1335 CFM)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMax Boost:\u003c\/strong\u003e 1.94 BarG (28.1 PSI)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eImpeller Diameter:\u003c\/strong\u003e 69 mm\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMax Impeller Speed:\u003c\/strong\u003e 90,000 rpm\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 6.0kg (13.2 lbs)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eRecommended Use\u003c\/h3\u003e\n\u003cp\u003eThis Rotrex head unit is ideal for custom supercharger kits, replacement head unit service, high-performance street builds, motorsport applications, and forced induction projects where compact packaging, efficient boost, and reliable power are required.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eImportant:\u003c\/strong\u003e Always verify pulley ratio, maximum impeller speed, rotation direction, oil system requirements, belt alignment, engine tuning, and fuel system capacity before installation. Final compatibility depends on the complete supercharger kit, vehicle application, and supporting components.\u003c\/p\u003e","brand":"Rotrex","offers":[{"title":"Default Title","offer_id":42738094145623,"sku":"2420","price":2761.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0592\/8642\/1591\/files\/Centrifugal_Supercharger_Rotrex_5a3b4aea-6da1-4eab-9849-dd9b4b6d11f0.jpg?v=1777560805","url":"https:\/\/jmautosports.com\/products\/rotrex-c3891-supercharger-black-edition-head-unit-2420","provider":"JM Auto Racing","version":"1.0","type":"link"}