{"product_id":"msd-8737-rpm-controls-three-step-module-selector","title":"MSD 8737 - RPM Controls Three Step Module Selector","description":"\u003cp\u003eMSD 8737 - RPM Controls Three Step Module Selector\u003c\/p\u003e\u003cp\u003eModule Selector - 3-Step - RPM Limiter \/ Retard Selector - MSD Rev Controller \/ Timing Controller - Each\u003c\/p\u003e\u003cp\u003eRPM Controls Three Step Module Selector; Allows You To Choose Two Or Three Different RPM Limits That Can Be Activated At Different Times;\u003c\/p\u003e\u003cp\u003eAs an example, well use a drag car with a Three Step Module Selec­tor plugged into the rpm socket of a 7AL-2 Ignition. The different rpm modules are activated when 12 volts are applied to a corresponding wire. By connecting one wire to the line-lock circuit, one module will be activated during the burnout. This helps keep tire temperatures consistent. When the line-lock button is released, the limit turns off. When youre on the starting line, you can activate the second limit through the clutch or trans switch. This provides a steady and consis­tent rpm for firm holeshots every time. When no modules are selected, the remaining high limit is active to protect the engine in the event of driveline failure. The Module Selectors can also be used with an MSD Timing Control. By plugging the Selector into a retard module socket, you can acti­vate different retard amounts at select times. This is a great feature for engines being upgraded to a multi-stage nitrous system. With the addition of an RPM Activated Switch, you can use the Two Step to activate a shift light at different rpm.The Module Selectors must be used with an MSD Soft Touch Rev Control or a Timing Controller with a high-speed retard module. No rpm or retard modules are supplied.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eLaunch rev limiter\u003c\/li\u003e\n\u003cli\u003eBurnout rev limiter\u003c\/li\u003e\n\u003cli\u003eSet 3 RPM limits:\u003c\/li\u003e\n\u003cli\u003eTop End rev Limiter\u003c\/li\u003e\n\u003c\/ul\u003e\u003cdiv\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eBrand\u003c\/strong\u003e: \u003cspan\u003eMSD\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eCategory\u003c\/strong\u003e: \u003cspan\u003eAir and Fuel Delivery\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eEmission Code\u003c\/strong\u003e: \u003cspan\u003e5\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003epart type\u003c\/strong\u003e: \u003cspan\u003eEngine RPM Limiter\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eProduct Type\u003c\/strong\u003e: \u003cspan\u003eModule Selector\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eSub Category\u003c\/strong\u003e: \u003cspan\u003eFuel Injection System and Related Components\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eWarning\u003c\/strong\u003e: \u003cspan\u003eCalifornia Proposition 65\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eWarranty\u003c\/strong\u003e: \u003cspan\u003eManufacturer's Limited 1 Year Warranty\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"MSD","offers":[{"title":"Default Title","offer_id":47338525294730,"sku":"MSD-8737","price":199.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0706\/0619\/2778\/files\/0_8737_normalized.jpg?v=1776778638","url":"https:\/\/www.onlyinstock.com\/products\/msd-8737-rpm-controls-three-step-module-selector","provider":"Only In Stock","version":"1.0","type":"link"}