{"product_id":"mercury-racing-600-sci-whipple-stage-4-performance-kit","title":"Mercury Racing 600 SCI Whipple Stage 4 Performance Kit","description":"\u003cp\u003eThe Whipple Stage 4 Performance Kit for Mercury Racing 600 SCI applications is a more complete performance package that combines Stage 4 calibration, increased boost support, camshaft upgrade components, improved intercooler system flow, and supporting hardware. This package includes a Stage 4 PCM calibration, Stage 4 supercharger pulley, Stage 4 camshaft kit, intercooler water re-route kit, high-flow 10AN intercooler fittings, high-flow 120 degree thermostat, high-flow billet flame arrestor, 10-rib Gates supercharger belt, and colder NGK Racing spark plugs.\u003c\/p\u003e\n\u003cp\u003eThe Whipple Stage 4 camshaft is designed to work with the stock valve train for a simpler camshaft upgrade path. The Stage 4 system is listed to increase engine output by more than 290 HP and 225 lb-ft of torque under Whipple test conditions. Whipple also increases low-RPM power to help reduce plane time and deliver a strong gain in acceleration.\u003c\/p\u003e\n\u003cp\u003eThe factory RPM limit is raised from 5400 RPM to 6000 RPM, giving customers a wider propping range and additional top-speed potential when the boat, prop, conditions, and setup support it. The Stage 4 calibration is designed for 91 octane fuel using the (R+M)\/2 rating method while maintaining stock-style idle, starting, and driveability.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cu\u003eStage 4 Kit Features\u003c\/u\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eStage 4 performance upgrade kit for compatible Mercury Racing 600 SCI applications\u003c\/li\u003e\n  \u003cli\u003eStage 4 high-performance PCM calibration\u003c\/li\u003e\n  \u003cli\u003eStage 4 supercharger pulley\u003c\/li\u003e\n  \u003cli\u003eStage 4 camshaft kit designed to work with the stock valve train\u003c\/li\u003e\n  \u003cli\u003eIntercooler water re-route kit to support increased system pressure and intercooler efficiency\u003c\/li\u003e\n  \u003cli\u003eHigh-flow 10AN intercooler fittings\u003c\/li\u003e\n  \u003cli\u003eHigh-flow billet flame arrestor\u003c\/li\u003e\n  \u003cli\u003eHigh-flow 120 degree thermostat\u003c\/li\u003e\n  \u003cli\u003e10-rib Gates supercharger belt\u003c\/li\u003e\n  \u003cli\u003eColder NGK Racing spark plugs\u003c\/li\u003e\n  \u003cli\u003eListed power increase of more than 290 HP under Whipple test conditions\u003c\/li\u003e\n  \u003cli\u003eListed torque increase of more than 225 lb-ft under Whipple test conditions\u003c\/li\u003e\n  \u003cli\u003eListed MPH gains of 15-20 mph, depending on boat setup and conditions\u003c\/li\u003e\n  \u003cli\u003eIncreased horsepower for improved top-speed potential\u003c\/li\u003e\n  \u003cli\u003eIncreased low-speed torque to help reduce plane time\u003c\/li\u003e\n  \u003cli\u003eIncreased low, mid, and high-speed torque for improved acceleration and throttle response\u003c\/li\u003e\n  \u003cli\u003eIncreased spark at low and mid speeds for improved engine efficiency\u003c\/li\u003e\n  \u003cli\u003e6000 RPM limit compared to stock 5400 RPM limit\u003c\/li\u003e\n  \u003cli\u003eDesigned for 91 octane fuel using the (R+M)\/2 rating method\u003c\/li\u003e\n  \u003cli\u003eMaintains stock-style idle, starting, and driveability\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cu\u003eCalibration Service Process\u003c\/u\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe PCM must be removed and sent to Whipple Superchargers for calibration service. Include a copy of the receipt and any relevant engine, boat, fuel, prop, PCM, pulley, camshaft, spark plug, thermostat, intercooler water system, and setup details with the PCM. Typical turnaround time is 7-10 days.\u003c\/p\u003e\n\u003cp\u003eNew PCM units may be available upon request. Verify PCM compatibility, engine model, fuel octane, current calibration, pulley setup, camshaft installation requirements, thermostat requirements, intercooler water system configuration, and complete installation requirements before ordering.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003ePerformance note:\u003c\/strong\u003e Power levels can vary from engine to engine. Whipple performance results were achieved under controlled conditions, and all applications can vary. Boat speed, plane time, and acceleration results depend on boat design, propping, atmospheric conditions, operating environment, driver input, and the complete engine package. MPH gains are helpful reference points and are not guaranteed.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eApplication note:\u003c\/strong\u003e This is a performance kit with calibration and hardware components. It does not diagnose or repair mechanical, fuel system, ignition, sensor, cooling system, airflow, belt-drive, camshaft installation, or general running issues.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eAffiliation note:\u003c\/strong\u003e Whipple Superchargers is not affiliated with Mercury Marine™ or Mercury Racing™.\u003c\/p\u003e","brand":"Whipple Superchargers","offers":[{"title":"Default Title","offer_id":56180569145666,"sku":"PCM-600SCI4","price":4195.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0999\/6002\/9506\/files\/F198647186.jpg?v=1789511602","url":"https:\/\/whipplesuperchargers.com\/products\/mercury-racing-600-sci-whipple-stage-4-performance-kit","provider":"whipplesuperchargers","version":"1.0","type":"link"}