{"product_id":"mercury-racing-1025-1075-sci-whipple-stage-2-performance-kit","title":"Mercury Racing 1025\/1075 SCI Whipple Stage 2 Performance Kit","description":"\u003cp\u003eThe Whipple Stage 2 Performance Kit for Mercury Racing 1025 SCI and 1075 SCI applications builds on the Stage 1 package by adding a more aggressive camshaft and valve spring setup matched to the supercharger system. This kit combines a high-performance PCM calibration with a special grind camshaft and Isky tool room valve springs to increase power across the RPM range.\u003c\/p\u003e\n\u003cp\u003eThe Stage 2 package is listed to increase output by over 100 HP and 100 lb-ft of torque under Whipple test conditions. The factory RPM limit is raised from 6200 RPM to 6800 RPM, giving customers a wider propping range and additional top-speed potential when the boat, prop, conditions, and complete setup support it.\u003c\/p\u003e\n\u003cp\u003eWhipple calibration changes are designed to improve low-speed torque, acceleration, throttle response, and high-RPM power delivery while maintaining stock-style idle, starting, and driveability. The Stage 2 calibration is designed for 91 octane fuel using the (R+M)\/2 rating method.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cu\u003eStage 2 Kit Features\u003c\/u\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eStage 2 performance upgrade kit for compatible Mercury Racing 1025 SCI and 1075 SCI applications\u003c\/li\u003e\n  \u003cli\u003eBuilds on the Stage 1 package with added camshaft and valve spring upgrades\u003c\/li\u003e\n  \u003cli\u003eHigh-performance PCM calibration\u003c\/li\u003e\n  \u003cli\u003eHigh-performance special grind camshaft\u003c\/li\u003e\n  \u003cli\u003eIsky tool room valve springs\u003c\/li\u003e\n  \u003cli\u003eListed power increase of over 100 HP under Whipple test conditions\u003c\/li\u003e\n  \u003cli\u003eListed torque increase of over 100 lb-ft under Whipple test conditions\u003c\/li\u003e\n  \u003cli\u003eListed MPH gains of 5-10 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\u003e6800 RPM limit compared to stock 6200 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, camshaft, valve spring, 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, camshaft requirements, valve spring requirements, 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. Boat speed, plane time, acceleration, and RPM 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, valve train, camshaft installation, or general running issues.\u003c\/p\u003e","brand":"Whipple Superchargers","offers":[{"title":"Default Title","offer_id":56180569473346,"sku":"WPK-MR1025-1075SCI-S2","price":3695.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0999\/6002\/9506\/files\/F198649792.png?v=1789511607","url":"https:\/\/whipplesuperchargers.com\/products\/mercury-racing-1025-1075-sci-whipple-stage-2-performance-kit","provider":"whipplesuperchargers","version":"1.0","type":"link"}