But beyond that, an accurate tach can have far reaching consequences for engine life and valvetrain wear. More engine revolutions per minute rpm can mean higher power output, but beyond a critical threshold, it can spell destruction for valvetrain components. As engine rpm climbs, so does valvetrain inertia and friction. Exceedingly high rpm can bend pushrods, fatigue valvesprings, collapse lifters, and create piston-to-valve contact that can cause a lot of good money to be wasted—and in most cases it could be avoided with a quality tachometer.
We have a Plymouth Valiant that we want to use in double duty on the street as a cruiser, and at the track as a bruiser. There is a lot at stake here—namely a hp low-deck Chrysler big-block stuffed with a lot of high-quality parts. The only real thing to decide with an Auto Meter tachometer is what features you want, what size you need, and what cosmetics you like. It also comes with basic mounting hardware to strap it to your steering column, dashpad, or instrument panel. Models are also available for in-dash mounting without the cup or base. A small inspection hole in the rear allows the user to select a series of DIP switches for four-, six-, or eight-cylinder operation.
How to Wire an Electronic Tachometer as Easy as 1-2-3
Ours came set for 8-cylinder from the factory. Auto Meter tachs have always provided us with rock-steady rev readings, and been able to take a beating in a variety of cars…. You must remember to hook up the white dash light wire for this to operate. Auto Meter also includes a small selection of colored filters that slip over the small serviceable bulb inside the gauge; these allow you to change the color of the light to match your needs.
how to hookup autometer tach? | Mustang Forums at StangNet
Moreover, Auto Meter tach faces are available in a variety of materials, colors, fonts, and rpm ranges. You can also get an add-on or built-in adjustable shift-lite, peak recall, playback, and even data-logging—essentially anything you want. And for the ultimate in custom gauges, you can special order exactly the tach you want for a small price premium from the Auto Meter Custom Shop ampcustomshop. No matter which Auto Meter electronic tach you choose, they will all connect the same way for every car.
There are four small wires that come out of the gauge; on tachs with a steel cup, this will be through a small hole protected by a flexible rubber grommet. The black wire is connected to a good ground, the red wire goes to switched volt power, the green wire is a tach signal feed, which goes either to the negative side of the ignition coil or to the tach terminal on your ignition box, and the aforementioned white wire goes to the instrument panel lighting circuit. Once everything checks out, the wires can be shortened and terminated appropriately—by that we mean using proper electrical terminals, and protecting connections against short circuit with heat-shrink tubing, electrical tape, or protective crimp terminals.
I dont own directions for an Easy Ways to engine.
And one final tip: We rotated the gauge in the cup clamp such that the needle will aim straight up at our designated shift point of 6, rpm. This will be very easy to see, even when not staring directly at the gauge. Looking for a great all-around muscle car speed shop to work on your Mopar, or any muscle car for that matter? RRC owner Bill Richman and his capable crew have been building ground-pounding street machines, competitive race cars, and show-winning hot rods for decades, and our tach installation was a slam dunk for them.
To get my autometer to work I had to run a switched 12volt wire so its hot when the car is running with a ohm resistor and spliced it into the pin 10 white wire to get a strong enough signal for 4cyl mode. Meter and they said 4 cyl mode Find More Posts by Kamin. Find More Posts by forcd ind. So if you cant find a switch, dont panic. Find More Posts by Horsepwraddict. What autometer gauges require you to cut wires to change their settings????
SatisTraction, Did you get it sorted out? Last edited by 67RSCamaroVette; at Originally Posted by Kamin.
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And yes, all of the older autometer tachs have 1 brown and 1 orange wire that looks like a loop from the backside. Originally Posted by ghettocruiser. That sounds like a reasonable solution. I mean, obviously if that trick works, then it works. Just seems weird is all. But its definetly good to know! I believe the tach output from the PCM meant to feed the cruise control module, not a tach is 5V at the peaks.
That's enough to trigger some tachs but not others. The exact value of resistor need will depend on the internal resistance of the tach and PCM and the sensitivity of the tach. Find More Posts by Rodder.
Auto Meter Tachometer – Tach It On
Find More Posts by lt4malibu. Originally Posted by Rodder.
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I have been waiting 10 weeks for Ricks Hot rod shop to build my gas tank. Originally Posted by lt4malibu. Yeah but it doesnt just go to the cruise unit. It also sends the tach signal to the tach iteself. I think thats one of the few gauges that doesnt rely on the serial data alone for its info
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