Toyota Celica Supra Forum banner

1 - 20 of 21 Posts

·
Registered
Joined
·
1,956 Posts
Discussion Starter · #1 ·
I found a 1990 localy at a good price. Will it work??????
 

·
Registered
Joined
·
2,476 Posts
I think that I read somewhere that the newer Turbo ones have the higher output.
 

·
Super Moderator
Joined
·
8,611 Posts
Any year automatic car, they are 80A. 5spd cars are 70 amps.
 

·
Registered
Joined
·
347 Posts
I need to get this mod done. Damn stock alt. just isn't enough.
:idea: I thought the turbo would have more amp to power the xtra accesories?
 

·
Registered
Joined
·
1,956 Posts
Discussion Starter · #5 ·
Just finished.......MUCH easier than I had thought! No more dimming dash with brake lights, stereo, fog lights, and H4 head lamps!!

Its a New Car...
 

·
Super Moderator
Joined
·
8,611 Posts
What extra electric accesories does a turbo have that an NA doesn't? Pretty much the only difference between the 2 is mechanical components.
 

·
Registered
Joined
·
1,956 Posts
Discussion Starter · #7 ·
??????......All I know is the 1990 turbo, automatic alternator is almost physicily Identical to the 1985 stock, but with more amps, as far as what extra it is supposed to power I don't know about originaly but here and now its keep ing my 100w fog lights nice and bright.
 

·
Registered
Joined
·
2,297 Posts
Angkistrodon said:
??????......All I know is the 1990 turbo, automatic alternator is almost physicily Identical to the 1985 stock, but with more amps, as far as what extra it is supposed to power I don't know about originaly but here and now its keep ing my 100w fog lights nice and bright.
So basically, with that alternator...all you did was put your V pulley on the MkIII alternator and you're set, right?

From what I remember, there's a bit more to it than just putting the alternator in the car, unless I'm wrong about that. Anybody know for sure?
 

·
Registered
Joined
·
1,956 Posts
Discussion Starter · #9 ·
No, I did not switch the pulley, I left the one that came with the "new" alternator on it. I had to buy a slightly more narrow belt (k505375k5, I think). The small amount of fabrication involved the tension bolt grove, I had to grind it a bit wider.

Oh yea, The stock 1985 MKII tension bolt was to small for the CARQUEST alternator.

And thats it......Much easier than I thought.......everyone can do it.
 

·
Registered
Joined
·
999 Posts
SupraRacer007 said:
Angkistrodon said:
??????......All I know is the 1990 turbo, automatic alternator is almost physicily Identical to the 1985 stock, but with more amps, as far as what extra it is supposed to power I don't know about originaly but here and now its keep ing my 100w fog lights nice and bright.
So basically, with that alternator...all you did was put your V pulley on the MkIII alternator and you're set, right?

From what I remember, there's a bit more to it than just putting the alternator in the car, unless I'm wrong about that. Anybody know for sure?
I seem to have found some mysterious and arcane document somwhere which discribes this exact procedure. In fact, I happened to come across it by using the mythical "search" feature. Golly gee! :p
http://www.celicasupra.com/mk3altinstall.html

(runs like heck)
 

·
Registered
Joined
·
1,956 Posts
Discussion Starter · #11 ·
Yea thats what I printed out and followed! :!: :!: :!:
 

·
Registered
Joined
·
456 Posts
When I decided to upgrade the alternator to the 80 amp unit (from nix99) I felt that compromising the install using the narrower belt wouldn't make any sense. And since I have access to a good bud with a machine shop I had my 85 pulley machined out to the 7m alternator shaft diameter. I would highly recommend anyone swapping in the 80 amp do the same. Why solve one problem and create a future one? (or two) IMHO
 

·
Registered
Joined
·
1,956 Posts
Discussion Starter · #13 ·
What problems could pop up with the narrow belt? I made sure to line it up.
 

·
Registered
Joined
·
2,297 Posts
Emohawk said:
SupraRacer007 said:
Angkistrodon said:
??????......All I know is the 1990 turbo, automatic alternator is almost physicily Identical to the 1985 stock, but with more amps, as far as what extra it is supposed to power I don't know about originaly but here and now its keep ing my 100w fog lights nice and bright.
So basically, with that alternator...all you did was put your V pulley on the MkIII alternator and you're set, right?

From what I remember, there's a bit more to it than just putting the alternator in the car, unless I'm wrong about that. Anybody know for sure?
I seem to have found some mysterious and arcane document somwhere which discribes this exact procedure. In fact, I happened to come across it by using the mythical "search" feature. Golly gee! :p
http://www.celicasupra.com/mk3altinstall.html

(runs like heck)
I already looked at that section "wise ass" :slapcry: -- as I pretty much know the CelicaSupra.com website from top to bottom.

:wink:

My 83 model has V belts only, not a serpentine like the MkIII Alt requires. What was getting at (that the CS.com FAQ article does not go into) is the possibility of putting the MkII Alt pulley ON the MkIII Alternator. I could have sworn that someone told me about this one time, but I can't remember where I saw it. I'm pretty sure it was not discussed on the forum (as I have already used search).

Oh well... :D
 

·
Registered
Joined
·
1,956 Posts
Discussion Starter · #15 ·
Well on my 85 the belts fit fine, just had to get a more narroe one to fit the 1990 alt.

I think the belt matches can only be done on 84s and 85s. My 82 parts car uses two small belts around the alt.
 

·
Registered
Joined
·
456 Posts
The reason I had the pulley from the mkII machined to fit the mkIII alternator is so that I could use the wider (7 rib) belt from the stock set up. I had read several other peeps that went with the narrower belt (5 rib) and they found that there was slippage occuring which required them to tighten the belt down to a point that would shorten the life of their water pump bearings life. So I just added a little insurance. To each his own.
 

·
Registered
Joined
·
4,558 Posts
well, i think i know what supraracer is trying to get at...
can those of us with the V belts use the 80amp alternator?

i guess ill find out this spring, because im going to need a better alternator one way or another, so im going to see if i can get it to work.
then ive gotta do the charge light mod...


my machinist is gonna love me this year, hes gonna make lots of money.
 

·
Registered
Joined
·
1,720 Posts
There's a way to swap the MK3 alternator into an 82-83 with v-belts. It's a two step process,
step 1: remove 5M with v-belts
step 2: install 7M with better alternator and serpentine belt setup
As an added bonus you get 85hp as well :D
HTH
 

·
Registered
Joined
·
2,297 Posts
white_mk_2 said:
There's a way to swap the MK3 alternator into an 82-83 with v-belts. It's a two step process,
step 1: remove 5M with v-belts
step 2: install 7M with better alternator and serpentine belt setup
As an added bonus you get 85hp as well :D
HTH
Now THERE is a dose of helpful information... :roll:
 

·
Registered
Joined
·
4,558 Posts
white_mk_2 said:
There's a way to swap the MK3 alternator into an 82-83 with v-belts. It's a two step process,
step 1: remove 5M with v-belts
step 2: install 7M with better alternator and serpentine belt setup
As an added bonus you get 85hp as well :D
HTH
sure, and your paying for the swap and getting me a rental car for the downtime :p

lol, great deal... for me
 
1 - 20 of 21 Posts
Top