{"product_id":"speed-signal-interface-sn74z","title":"speed-signal-interface-sn74z","description":"\u003cp\u003e\u003cstrong\u003eOverview:\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eClassic Instruments Speed Signal Interface\u003cbr\u003e\u003cbr\u003eSpeed Signal Interface (Converts VSS\/ECM speed signals to either 8k or 16k PPM)\u003cbr\u003e\u003cbr\u003eThe SN74Z has the following features when used as a Speedometer interface.\n\nInput Source Options\n\nThree wire pulse signal generator input source\nBuilt-in Vehicle Speed Sensor (VSS) input source\nMost Tremec transmissions\n\nLater model 700R4's \n\nTypically a sine wave signal\n\nTwo wire pulse signal generator input source\nClassic Instruments SN96 or SN95\n\nTypically a sine wave signal\n\nOne wire ECM signals input source\nTypically a 5 volt square wave\n\nOutput\n\nThe output can be selectable between either 8000 pulse per mile or 16000 pulse per mile\nOutputs a 12V square wave, 50% duty cycle\n8000 pulse per mile cruise control output\nAdditional Benefits\n\nThree different calibration options\nInstant: drive 30 MPH and press the calibration button\n\nReal-Time: press and the hold the calibration button to match the speedometer reading to the actual vehicle speed\n\nMarked Mile: Drive a measured mile to calibrate the speedometer\n\nInput signal can range from 2000-200,000 pulses per mile\nState of the art signal averaging software that ensures smooth pointer operation, even in fluctuating signal conditions.\nNoise-reducing, filtered power output for powered speedometer signal generators\n \n\nThe SN74Z has the following features when used as a Tachometer interface.\n\nInput Source Options\n\nHigh Voltage Coil signal input source\n.5-6 pulses per revolution (1-12 cylinder engine)\n\nTypically the negative side of an ignition coil\n\n5-12V Square Wave signal input source\n.5-6 pulses per revolution (1-12 cylinder engine)\n\n20%-50% duty cycle\n\nTypically from an electronic ignition box or computer\n\nInductive Gear tooth sensor input source\nTypically used in diesel applications where there is not an ignition system\n\nThe sensor can be mounted to the engine near the flywheel to sense the gear teeth as they rotate by\n\nCan be used with 32-510 tooth flywheels, 32-510 pulses per revolution\n\nOutput\n\nSignal output\n12V square wave, 50% duty cycle\n\n2, 3, or 4 pulses per revolution (4, 6, or 8 cylinder)\n\n3 preset flywheel tooth settings\n\n148 tooth - Chevy Duramax\n\n152 tooth - 5.9L Cummins\n\n155 tooth - 7.3L Ford Powerstroke\u003cbr\u003e\u003cbr\u003e\u003c\/p\u003e\u003cp\u003e\u003c\/p\u003e\u003ch3\u003eSpecs:\u003c\/h3\u003e\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eApplication\u003c\/th\u003e\n\u003ctd\u003eUniversal\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eBezel Included\u003c\/th\u003e\n\u003ctd\u003eNo\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eBrand\u003c\/th\u003e\n\u003ctd\u003eClassic Instruments\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eEmission Code\u003c\/th\u003e\n\u003ctd\u003e6\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eFinish\u003c\/th\u003e\n\u003ctd\u003eBlack\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eProduct Type\u003c\/th\u003e\n\u003ctd\u003eSpeed Signal Interface\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eWarning\u003c\/th\u003e\n\u003ctd\u003eCalifornia Proposition 65\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e","brand":"Classic Instruments","offers":[{"title":"Default Title","offer_id":44414312972501,"sku":"SN74Z","price":152.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2493\/0960\/files\/sn74z-b37e31252179a1f3d6f80cd91b0e09146569b2ee.jpg?v=1759662591","url":"https:\/\/moderndaymuffler.com\/products\/speed-signal-interface-sn74z","provider":"Modern Day Muffler","version":"1.0","type":"link"}