This module selector allows up to three different rpm or retard limits to be activated at different times during a pass. One wire can be tied to the line-lock circuit to hold a burnout rpm limit, a second to the clutch or trans switch for a consistent launch rpm, and the remaining high limit protects the engine if no modules are selected. It also works with MSD Timing Controls for staged retard amounts, useful with multi-stage nitrous systems.Specifications: Category: Air and Fuel Delivery Part Type: Engine RPM Limiter Product Type: Module Selector Sub Category: Fuel Injection System and Related Components Selects between launch, burnout, and top-end rpm limits Compatible with MSD Soft Touch Rev Control or MSD Timing Controllers using high-speed retard modules RPM or retard modules sold separately, not included Part Number: 8737 FAQHow many rpm limits can the 8737 selector manage?It allows up to three different rpm or retard limits to be activated at different times.What is it compatible with?It must be used with an MSD Soft Touch Rev Control or an MSD Timing Controller with a high-speed retard module.Are the modules included?No, rpm and retard modules are not supplied and must be purchased separately.Can it be used with a nitrous system?Yes, when connected to an MSD Timing Control it can activate different retard amounts at select times, useful for multi-stage nitrous setups.{"@context":"https://schema.org","@type":"FAQPage","mainEntity":[{"@type":"Question","name":"How many rpm limits can the 8737 selector manage?","acceptedAnswer":{"@type":"Answer","text":"It allows up to three different rpm or retard limits to be activated at different times."}},{"@type":"Question","name":"What is it compatible with?","acceptedAnswer":{"@type":"Answer","text":"It must be used with an MSD Soft Touch Rev Control or an MSD Timing Controller with a high-speed retard module."}},{"@type":"Question","name":"Are the modules included?","acceptedAnswer":{"@type":"Answer","text":"No, rpm and retard modules are not supplied and must be purchased separately."}},{"@type":"Question","name":"Can it be used with a nitrous system?","acceptedAnswer":{"@type":"Answer","text":"Yes, when connected to an MSD Timing Control it can activate different retard amounts at select times, useful for multi-stage nitrous setups."}}]}
