North American Turbocoupe Organization



Can someone let me know where this Alt wire goes?
88Tbird2.3t Offline
Senior Member
#1
So I went to pull my alternator off the other week and being lazy and tugging on the 3 wire connector into the regulator of the Alt instead of grabbing something to help pry it up, the black (assuming ground) wire from the 3 wire connector pulled out of the harness & I for the life of me tried opening up the harness and removing all the loom and tape and cannot find any traces of where this damn black wire went to and feeling really stupid...

http://i617.photobucket.com/albums/tt258...545703.jpg http://i617.photobucket.com/albums/tt258...545703.jpg

hope someone can make me look like an idiot and tell me where this darn thing goes? Smile
88 TC
Best run: 1/8 - 8.062 @ 87.91MPH, 1/4 - 12.564 @ 109.44 MPH *(10/17/12)*
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Sophosis Offline
Member
#2
I had to go back and look, but I was remembering that the black wire just terminated in the harness on an 88. Check the wiring section in this article:

http://turbotbird.com/techinfo/3G%20Alte...nstall.htm
1988 Turbo Coupe
- 0.020 Diamonds w/stock rods, T3 w/stock IC, BoPort 1.5 cam, LA3 w/QH on MAF, water/meth
- 5-lug swap, 31-spline, 4.10s, vacuum brakes, PBR front brakes, 2000 Mustang GT 17" rims
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Jeff K Offline
Administrator
#3
^^^ +1

That wire doesnt go anywhere with the stock 88 Mitzu alternator.
Jeff Korn

88 Turbo Coupe: Intake and exhaust mods, T3 turbo at 24 psi, forced air IC, water injection, BPV, Ranger cam, subframes, etc., etc.
86 Tbird 5.0 (original owner): intake, exhaust, valvetrain mods, 100 HP N2O, ignition, gears, suspension, etc., etc.
05 Taurus SEL Duratec daily driver
04 Taurus Duratec (wifes car)
02 Pontiac Grand Prix GT
95 Taurus GL Vulcan winter beater
67 Honda 450 Super Sport - completely customized
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88Tbird2.3t Offline
Senior Member
#4
Thats what i thought just wanted to make sure i wasnt going crazy lol thanks for for proving me not so crazy guys Smile

And Pete if you see this thanks for the diagram you mailed!
88 TC
Best run: 1/8 - 8.062 @ 87.91MPH, 1/4 - 12.564 @ 109.44 MPH *(10/17/12)*
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BJL Offline
Moderator
#5
no bob your still crazt, ditch that crappy alt and get a real alt. a 3g 95 or 130 amp.
Brian J Larkin
88TC 320k miles
T3, FMIC ,3in stinger exhaust, gillis,
255 walbro, afpr, 5spd swap,spec clutch, sn95 5 lug,.
89 Cougar XR7 3.8SC Auto
95 Ranger Splash 3.0 auto
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Jeff K Offline
Administrator
#6
^^^^ +1
Jeff Korn

88 Turbo Coupe: Intake and exhaust mods, T3 turbo at 24 psi, forced air IC, water injection, BPV, Ranger cam, subframes, etc., etc.
86 Tbird 5.0 (original owner): intake, exhaust, valvetrain mods, 100 HP N2O, ignition, gears, suspension, etc., etc.
05 Taurus SEL Duratec daily driver
04 Taurus Duratec (wifes car)
02 Pontiac Grand Prix GT
95 Taurus GL Vulcan winter beater
67 Honda 450 Super Sport - completely customized
Reply

Joe F Offline
Posting Freak
#7
It's an "awcrap" wire some joker Ford Engineer installed to make us DIYers panic!
JR's Place - My '87 Turbocoupe
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88Tbird2.3t Offline
Senior Member
#8
the only reason i havent upgraded to a newer style alternator is because i thought i read somewhere that they cause more electronic noise that the Megasquirt standalone doesnt like, not sure if its because they impose more AC ripple that the computer doesnt like or why but I'd need to look into it again
88 TC
Best run: 1/8 - 8.062 @ 87.91MPH, 1/4 - 12.564 @ 109.44 MPH *(10/17/12)*
Reply

Jeff K Offline
Administrator
#9
^^^ All alternators are electrically the same. They are all 3 phase AC generators and the output is full wave rectified by 6 diodes. If operating correctly (no leaky / blown diodes, burned out phases, damaged regulator)no alternator will be any noisier than any other alternator.

Modern car alts are regulated by the PCM to keep system voltage a little more stable than the "old" internally regulated alts we use.

A 75 A alt on a TC with all the electrical accessories it has is a joke. A 130A alt will keep system voltage MORE stable than the anemic stock 75A alt.
Jeff Korn

88 Turbo Coupe: Intake and exhaust mods, T3 turbo at 24 psi, forced air IC, water injection, BPV, Ranger cam, subframes, etc., etc.
86 Tbird 5.0 (original owner): intake, exhaust, valvetrain mods, 100 HP N2O, ignition, gears, suspension, etc., etc.
05 Taurus SEL Duratec daily driver
04 Taurus Duratec (wifes car)
02 Pontiac Grand Prix GT
95 Taurus GL Vulcan winter beater
67 Honda 450 Super Sport - completely customized
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