DOCUMENT DOWNLOADS AVAILABLE FOR THIS ECU TACH SIGNALS TO FEED 24V AND BACK-EMF STYLE TACHOMETERS
IMPORTANT:In applications with current-mode tachometers which originally connected to coil-positive instead of coil-negative, the BTAC2 CANNOT substitute for the MSD 8920. This includes tachssuch as pre-\'74 Mustangs and Pantera Veglias, Smiths RVI\'s, vintage Sun tachs with external signal boxes, vintage OEM rally packs, etc. The BTAC2 works ONLY for voltage-mode tachos which require high voltage to trigger. Please contact us if you are unsure about your application.
Modern aftermarket tachs all work fine with a 12V digital signal, but what if the old tach in your dashboard can\'t see the square wave from your brand new ignition? Before 1995, many tachs expected to see a high-voltage \"spike\" from a discharged ignition coil, so they flatline when connected to a digital tach output like an ECU or MSD 6AL. This little device can solve your problem, using a miniature coil to mimic the action of an ordinary ignition coil. It produces a minimum 48V+ from a 12V supply and will trigger with as little as 0.8V. It\'s compatible with all tach correctors and adaptors providing a digital output, including Widget Man\'s own BTA, CCA, and USC. It connects easily with .25\" fastons and needs only 4 connections; 12V, ground, signal-in and signal-out. It\'s epoxy-sealed into a standard relay housing, so it mounts almost anywhere. It\'s also waterproof, vibration-proof, and withstands temperatures to 225 degF. It comes with a 90-day warranty plus free email tech support if you need it.
If you\'re presently using products like the MSD 8920, we think you\'ll find our BTAC2 is a superior alternative, providing higher boost output in a smaller, more convenient package.Note: Mounting Tab location may vary from position shown.
