{"product_id":"mercury-marine-6-2l-377-383-whipple-stage-1-pcm-calibration-upgrade","title":"Mercury Marine 6.2L \/ 377 \/ 383 Whipple Stage 1 PCM Calibration Upgrade","description":"\u003cp\u003eThe Whipple Stage 1 PCM Calibration Upgrade is designed for compatible Mercury Marine 6.2L, 377, and 383 small block applications using PCM555 engine control. This calibration service is intended for stock engine combinations where the customer wants improved performance, throttle response, and torque output while retaining the existing PCM.\u003c\/p\u003e\n\u003cp\u003eThe Stage 1 calibration is designed around 91 octane or better fuel instead of the stock 87 octane calibration. Whipple adjusts key calibration areas including spark advance, ignition dwell, and air-fuel ratio to help increase torque throughout the RPM curve and improve peak horsepower. Customers have also reported improved throttle response and cleaner transoms with reduced soot compared to the stock calibration.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cu\u003eStage 1 Calibration Features\u003c\/u\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eHigh-performance PCM555 calibration for compatible Mercury Marine 6.2L, 377, and 383 applications\u003c\/li\u003e\n  \u003cli\u003eDesigned for stock engine combinations using 91 octane or better\u003c\/li\u003e\n  \u003cli\u003eIncreased maximum spark advance\u003c\/li\u003e\n  \u003cli\u003eIncreased ignition dwell from the ignition coil\u003c\/li\u003e\n  \u003cli\u003eOptimized air-fuel ratio\u003c\/li\u003e\n  \u003cli\u003e5600 RPM limit\u003c\/li\u003e\n  \u003cli\u003eListed 5-8% power increase over stock\u003c\/li\u003e\n  \u003cli\u003eImproved acceleration with increased torque output\u003c\/li\u003e\n  \u003cli\u003eMay help reduce transom soot when the engine and fuel system are operating properly\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, and setup details with the PCM. Typical turnaround time is 7-10 days.\u003c\/p\u003e\n\u003cp\u003eCustom calibrations may also be available for certain modified engine combinations, earlier calibration updates, custom camshaft or engine packages, and other supported Mercury Marine PCM555 applications. Custom calibration work can take an additional 3-5 days, and testing is required for custom engine combinations.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eApplication note:\u003c\/strong\u003e Verify engine model, PCM type, fuel octane, current calibration, engine modifications, and complete setup requirements before ordering. This is a calibration service and does not diagnose or repair mechanical, fuel system, ignition, sensor, or general running issues.\u003c\/p\u003e","brand":"Whipple Superchargers","offers":[{"title":"Default Title","offer_id":56180570292546,"sku":"ECM-62MX","price":895.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0999\/6002\/9506\/files\/F198646381.jpg?v=1789511618","url":"https:\/\/whipplesuperchargers.com\/products\/mercury-marine-6-2l-377-383-whipple-stage-1-pcm-calibration-upgrade","provider":"whipplesuperchargers","version":"1.0","type":"link"}