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LinkBack (11) | Thread Tools |
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#1
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Proud American
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How To install an Aftermarket Tach in a 96-98
It is common knowledge that the stock Oil Pressure gauge and Water temp gauges are completley inaccurate. But who would have thought the Tachometer. It is completely in accurate. Some times i would bounce off the limiter at the track at 5500 RPM and next time around 5700 RPM. It made me concentrate, and not get as good of times, because i bounced off the limiter because of inaccurate gauges!
I bought a Autometer aftermarket 5 inch tach with Shift light. I also bought a UPR tach bracket. Both are very high quality. The instructions didnt come with it because i bought it used. But i have found a great set of instructions. Here is the link. http://www.egauges.com/pdf/AutoMeter/859e.pdf 1. Unscrew the Gauge Cluster bezel and take the headlight knob off. (i just pull really hard and it comes off everytime) 2. Take the two torx screws out of the center dash portion above the CD player, and then take the CD player and Radio out. ![]() 3 Behind the Radio, there is a torx screw back in there holding the bezel on. Take the screw out and then pull on the bezel. It will come off. 4. Now take the two torx screws out on the left of the AC controls. Not take the tach, and its bracket, and screw the screws back in. Now reassemble the center dash, and plug the radio and CD players back in. (If mounting the tach elsewhere disregard steps 2-4) Now your dash should look something like this. ![]() Next step is to wire it up. Take the actual gauge cluster out. There are 4 torx screws holding it in. You will have to unplug two plugs from it too. 5. There is a black and a white plug. ![]() Take the white plug. And find the Tan and yellow wire, in pin 8. That is the tach signal wire. That is what the tach wire will be connected to. In my case, it was a green wire. I used scotch locks to tap into the wires. ![]() ![]() ![]() Now all you need is a power source for the tach itself, a ground, and a power source for the light. You dont want the light on all the time, so you have to tap into a wire that will only give power to that when the lights are on. This wire can be found, along with the power wire for the tach, and the ground, from the rear defroster switch. ![]() In my picture there are already wires tapped into it, because i have my other gauges running off of the same wires. The Rear Defroster Switch is protected by a fuse. This is a picture of the wiring of the Rear Defroster Switch ![]() The Pink/Light blue (Pin 3) wire is the power wire to the tach. In this case, that was my red wire. So I scotch locked it in place there. The Black wire in (Pin 4) is the ground. You can scotch lock to that, but i just found a new ground under the dash. The Light blue/Red switch (Pin 5), is the power for the Lighting, so i connected my white wire to that. Now reconnect the wires to the back of the gauge cluster, and reinstall it. all the wires should be hidden behind the cluster now. So put the bezel back on. ![]() Turn on the lights, and see if the power to the light is working. ![]() If that checks out, put the car on the Start Position. If it goes to 0 and the light lights up then everything is checking out. Next fire up the car, and see if the tach works! If it does, set the shift points and have fun! Completed Pictures! ![]() ![]() Completed Movie! Make sure it worked! Compare to my Stock tach. ![]() How my car idles! ![]() A 96 GT with stock computer tune Bounces off the limiter at 5900 RPM And the stock tach was completely inaccurate. ![]() Good luck! and Ujslost thanks for the help with the wiring diagrams! Any questions just let me know!
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RIP Travis Billings ![]() Special Thanks to: Andrews Racing Transmissions Baseline Suspensions Blown Small Block Ford with a hole in the block. 9.5 Dart Block 400 CI being saved for. Just because you can fuck a cactus doesn't mean you should. Never Lift Racecars |
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#2 |
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MM Fanatic
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Looks great! Moderators should sticky this. Alot of guys wonder how to wire up their tach in the modular cars since they dont have a distributor and alot think that they have to buy an expensive useless tach adapter. Matt has totally busted that myth.
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1986 Mustang GT t-top time piece! |
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#3 |
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Proud American
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I believe that a 99-04 car maybe different. I think you should check the wiring diagrams for one of those. But for a 96-98 car this will work every time!
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RIP Travis Billings ![]() Special Thanks to: Andrews Racing Transmissions Baseline Suspensions Blown Small Block Ford with a hole in the block. 9.5 Dart Block 400 CI being saved for. Just because you can fuck a cactus doesn't mean you should. Never Lift Racecars |
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#4 |
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Enthusiast
Join Date: May 2007
Posts: 962
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thnx guy, im gunna use this here in the next couple weeks but i have a question, what is your exhaust setup??
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silver 98gt, blown- sold laser red 98gt, stock- gave away stormy blue 09 mazda3-traded 09 subaru wrx- soon to be 12 sec. daily driver ![]() 1988 gt- toy
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#5 |
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I Post Entirely Way Too Much
1988 Mustang LX Turbo
Join Date: Oct 2006
Location: NY
Posts: 8,792
Blog Entries: 1
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good write up Matt!
I think this applies for all Mustangs, same way i did mine
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1988 LX Coupe 2.5L, GT35R, 44mm WG, 32psi, C16. |
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#7 |
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Proud American
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Ujslost just checked, 99+ can not do it this way. they have to do a tach adapter. Here is a pic how to wire up a tach adapter.
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RIP Travis Billings ![]() Special Thanks to: Andrews Racing Transmissions Baseline Suspensions Blown Small Block Ford with a hole in the block. 9.5 Dart Block 400 CI being saved for. Just because you can fuck a cactus doesn't mean you should. Never Lift Racecars |
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#9 |
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Enthusiast
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same way i did mine. good write up matt. and 2 points to you for using taps and not cutting wires. good job man.
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#10 |
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Smelly Fists, Socking Cocks
Millenium Falcon
"Lived the Dream, Created the Reality, Basking in my Awesomeness"
Join Date: Mar 2007
Location: Zip's Bubble
Posts: 12,798
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I agree......., or atleast sticky a sub forum and thoow all the writeups we got in there......
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#12 |
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Proud American
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Thanks guys. Its a really easy job, but i had never seen a write up on it. This should help out others.
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RIP Travis Billings ![]() Special Thanks to: Andrews Racing Transmissions Baseline Suspensions Blown Small Block Ford with a hole in the block. 9.5 Dart Block 400 CI being saved for. Just because you can fuck a cactus doesn't mean you should. Never Lift Racecars |
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#14 |
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Proud American
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Right now its O/R H pipe with Flow 40 catback.
Soon, Hooker LT with with O/R X and flow 40 Catback I may go dumped on my car here soon. I dont know if i want the tail pipes to show anymore.
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RIP Travis Billings ![]() Special Thanks to: Andrews Racing Transmissions Baseline Suspensions Blown Small Block Ford with a hole in the block. 9.5 Dart Block 400 CI being saved for. Just because you can fuck a cactus doesn't mean you should. Never Lift Racecars |
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#15 |
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Enthusiast
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nice job matt !!!
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sold the stang
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#17 | |
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Enthusiast
Join Date: May 2007
Posts: 962
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. maybe ill get a tach this weekend
__________________
silver 98gt, blown- sold laser red 98gt, stock- gave away stormy blue 09 mazda3-traded 09 subaru wrx- soon to be 12 sec. daily driver ![]() 1988 gt- toy
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#18 |
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Proud American
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I got the bracket and tach and shift light for 85 bucks shipped. I would say i did alright!
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RIP Travis Billings ![]() Special Thanks to: Andrews Racing Transmissions Baseline Suspensions Blown Small Block Ford with a hole in the block. 9.5 Dart Block 400 CI being saved for. Just because you can fuck a cactus doesn't mean you should. Never Lift Racecars |
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#19 |
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Enthusiast
Join Date: May 2007
Posts: 962
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i would say you did fantastic... now if u could send it to me, you would be doing the "right" thing
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silver 98gt, blown- sold laser red 98gt, stock- gave away stormy blue 09 mazda3-traded 09 subaru wrx- soon to be 12 sec. daily driver ![]() 1988 gt- toy
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#20 |
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Proud American
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lol
__________________
RIP Travis Billings ![]() Special Thanks to: Andrews Racing Transmissions Baseline Suspensions Blown Small Block Ford with a hole in the block. 9.5 Dart Block 400 CI being saved for. Just because you can fuck a cactus doesn't mean you should. Never Lift Racecars |
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