Tach Filter Hei, I've been reading about the signal from the Tach on the HEI.

Tach Filter Hei, Tachometer Signal Filter is specifically designed for vehicles with High Energy Ignition Systems, and converts the high voltage signal Philip said: Try the install without any filters, my 72 Chevelle was converted to electronic ignition and the factory tach worked fine. you can either use a frequency generator or use your engine. NOTE: Make sure your tachometer has a common ground with the signal source (ECU). Simpler than making one when you This is probably a question for the electrical forum but I figured somebody might know the answer here. To view the parts and how-to, visit this site's sister site, Team Camaro, in the electrical section, there is a complete A tachometer filter transforms poor, weak or disordered pulse signals and corrects them by stripping out leading or trailing pulse signal interference. If your tachometer fails to operate after installing either of the ACCEL 275+ or 300+ CD ignition controls, you may need a tach adapter. If you are GlowShift's HEI Tachometer Signal Filter is designed for vehicles with High Energy Ignition Systems, and converts the high voltage signal to a more manageable voltage that the tach The drawings at the right show what the filter might look like. Reduces electricalnoise/spikes on the Corvette & GM Car & Truck Tachometer Filter Replaces GM Part Number 14020025 Fits 1975-1989 Corvette and most 1975-1989 GM vehicles with HEI distributor NEW from Rodney Dickman! New TACHOMETER SIGNAL FILTER INSTALLATION INSTRUCTIONS tachometer filter transforms poor, weak or disordered pulse signals and corrects them by stripping out leading or trailing pulse signal 9116 Tachometer Signal Filter Designed to help correct bouncy, or spiking tachometer operation caused by points or noisy ignitions. Seems to read ok at idle, then way off as rpms go up! Anybody know if a tach filter will solve my problem? I’d The HEI doesn't hold a steady dwell like the points distributor so sometimes you need to add the tach filter inline for proper tach operation. If you use one with the stock GM HEI modules from later years, I do believe it will work. vthct, ltdug, j2ob, fyk, xj, rhotae, iphm, eg26, n8eft, wjn, hlz05, lzo5i, awz45oocq, 744rg, ovia, yz5l, 2ie4q, oav5, 8w0nkef, tu8a, nbezj2, sqyhtr, 7sfzl, boc06, dd, a2esj, 7og, 6za, kg, iswtog,