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944 Turbo Nissan Alternator mod (reposted and to the point)

 
Old 10-22-2018, 10:04 PM
  #136  
Tom M'Guinn
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Originally Posted by Dkritz944 View Post

anybody??? Still batting the battery light issue. Just got the car up and running a couple weeks ago and this is the last issue with it. The alternator seems to be charging the battery well and the volts are steady when started. 13.8-14.5. So I donít think itís the voltage regulator. Im gonna try to rewrire the alternator. Taking off the jumper wire and going directly to the positive battery terminal. Anyone else have any suggestions???
Why do you think it's not the voltage regulator? If wired correctly, that would be my first guess...

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Old 10-23-2018, 01:42 AM
  #137  
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Originally Posted by Tom M'Guinn View Post
Why do you think it's not the voltage regulator? If wired correctly, that would be my first guess...
initially I thought it was. But the light flickers it stays on independent of what voltage my meter is reading. It could be on at 14V. Or it could be off at 14V. Very random. The only thing that it seems to be triggered by is the heat of the engine bay. Once the car is hot it comes on, when cold it stays off...
Also if it was the voltage regulator it would have probably crapped out by now or gotten to the point of showing bad voltage. Which it isnít. Might redoing some of the wires and getting rid of the jumper wire. Running that wire straight to the positive battery terminal.
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Old 10-24-2018, 07:32 PM
  #138  
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Originally Posted by Dkritz944 View Post

initially I thought it was. But the light flickers it stays on independent of what voltage my meter is reading. It could be on at 14V. Or it could be off at 14V. Very random. The only thing that it seems to be triggered by is the heat of the engine bay. Once the car is hot it comes on, when cold it stays off...
Also if it was the voltage regulator it would have probably crapped out by now or gotten to the point of showing bad voltage. Which it isnít. Might redoing some of the wires and getting rid of the jumper wire. Running that wire straight to the positive battery terminal.
well. Rewired the jumper wire to the positive battery terminal. Seemed to solve the problem!! No more jumpy volt gauge and no red light flickering. 👍🏼
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Old 01-12-2019, 07:22 AM
  #139  
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quick question here, sorry if its already been asked:

Why this particular alternator? I pulled an alt out of a 91 Corolla that was significantly smaller (going into a 924)
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Old 01-12-2019, 08:22 PM
  #140  
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Originally Posted by Alpineace View Post
quick question here, sorry if its already been asked:

Why this particular alternator? I pulled an alt out of a 91 Corolla that was significantly smaller (going into a 924)
Good question - I was wondering the same thing.
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Old 01-12-2019, 09:07 PM
  #141  
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Corolla 70amps
Quest 110amps
Enaic pioneered the fitment and hookup. Takes some fab work but a excellent mod.

wow just checked the link, guy has hot rodded em to 125 amps

Last edited by gpr8er; 01-15-2019 at 09:38 PM.
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Old 01-12-2019, 09:14 PM
  #142  
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The mounting holes are a pretty close fit too, not perfect but closer than most...
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Old 01-13-2019, 01:50 PM
  #143  
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Originally Posted by Alpineace View Post
quick question here, sorry if its already been asked:

Why this particular alternator? I pulled an alt out of a 91 Corolla that was significantly smaller (going into a 924)
70 amps would be plenty for my track car. Do the Corolla alternator's mounting holes line up reasonably well with those of the stock alternator?
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Old 01-13-2019, 03:43 PM
  #144  
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Originally Posted by Cloud9...68 View Post
70 amps would be plenty for my track car. Do the Corolla alternator's mounting holes line up reasonably well with those of the stock alternator?
For a track car, you could also drive it off a cv joint if you wanted to impress family and friends.
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Old 01-15-2019, 03:02 PM
  #145  
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Originally Posted by gpr8er View Post
Corolla 70amps
Quest 110amps
Ekolan pioneered the fitment and hookup. Takes some fab work but a excellent mod.

wow just checked the link, guy has hot rodded em to 125 amps
Where is the link?
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Old 01-15-2019, 09:02 PM
  #146  
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Originally Posted by Amalgamated Tom View Post


For a track car, you could also drive it off a cv joint if you wanted to impress family and friends.
Well, I still drive it on the street, mostly to and from the track, so not having the alternator run while the car is idling could present a problem. Also, figuring out a way to mount it sounds like a bit of a challenge.
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Old 01-17-2019, 08:46 PM
  #147  
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Originally Posted by Cloud9...68 View Post
Good question - I was wondering the same thing.
Any update on the install of the Corolla alternator? Curious if you had to make any significant modifications to get it to fit.
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Old 01-18-2019, 08:43 AM
  #148  
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If you place the stock alternator and the alternator you plan to moddify side by side on a flat surface, sitting on the face of their pullies and rotate the mounting tabs towards each other. You'll clearly see how much material needs to be removed or shimmed with washers. For the most part your going to have a main positive cable that runs to the battery through the starter post, a signal wire to run the gauge on the dash, and a 12v reference wire to check the system for load changes which controls the regulator. Many people have simply connected that reference wire right back to the main power lead on the back of the alternator, like myself which works flawlessly. However the reference wire would better represent the system connecting at the battery to account for any voltage drop. Other than that, You simply cut the stock alternator mount to accommodate your new alternator. All and all a easy mod to do. You might try taking your stock alternator to the parts store and comparing the mounting tabs on their counter as described above before purchasing it.
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Old 01-18-2019, 01:48 PM
  #149  
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I updated the original post with restored pics and descriptions!
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Old 01-18-2019, 11:11 PM
  #150  
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Originally Posted by mahoney944 View Post
I updated the original post with restored pics and descriptions!
Thanks for doing that! This thread is a great resource; good to see it refreshed for the benefit of others.
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