Also, anyone running this setup?

 

well it fits in 2nd gens with some mods, and 2nd gen alts fi in 1st gens with minor mods, so yes i assume it would work fine
never seen it myself though

 

I believe I read that the FD alternators use a different belt and so you'd need a new pulley, but its been done before.

Conway

 

They can be mounted on 2nd Gen's. Provided the Pulley Is changed to accomadate the FC. ie. non serpentine pulley.
In fact, I have a FD Alternator, with a double pulley, on my FC. I am now selling them with optional Double Pulley...

 

It beats 50 amp FB Alternators, respectively.

 

how many FD's you seen in a junkyard to get an alt?

 

lol good point mike....

ive heard fd alternators are to powerful for fbs and will fry the curcuits or something like that

-greg

 

I thought FB were 60 amp..

Then S5 FC were 80 amp?

Whats the raiting on a TII alt?

The alt that is on my FB has a lifetime warrenty so i dont want to take it apart,My 10 AE alt I want to take it apart...polish it and paint the ring that connects to the 2 housings..

Then get one made for this later with more amps..

 

ive got a 13b alternator on my 12a its out of a gsl-se i want to paint the ring in the middle to match my accented engine bay... does it need high-temp paint? or will regular spray can work?

-greg

 

high temp paint

 

damn, i was gonna go rip the alternator off and paint it!
hehe oh well new weekend project

-greg

 

FB- 50 amps
FC- (S4) 60amps
FC- (S5) 80amps
FD-100amps

Upgrading to and Alternator that cranks out more ampheres than stock will not smoke the electrical system...they have Voltage Regulators built Into them to monitor their output, as the name Implies.

 

Voltage isn't the same as amperage...
And I'm not sure if the wires or the components in our cars cand can handle the amperage.

each electrical component has certain voltage and amperage tolerances. If anyone knows of the tolerances of all the electrical load in the FB, you can check it against the alternator output. Unless the alternators ouput is strickly going through the battery first and is seperated from the rest of the electrical system.

Maybe someone will buy one off of you and be the genie-pig (sp?)

 

"genie-pig (sp?)"

Guinnea i belive its spelled.. hehehe

yeah someone be the lab rat!

-greg

 

As long as the alternator is putting out the right voltage the system is fine. Each component draws the current it needs from the alternator.

 

If you're going to get a higher rated alternator, I'd reccomend getting the fusible link box from another car. Perhpas an FC or newer 323, 626, or 929... Or something... Then use branches off that to power what you need the higher alternator for, IE foglights,stereo, etc... Also run an extra thick wire from the Alternator output to the + battery terminal. Put a fuse in that wire rated at the alternator's output.

www.mazdarecycling.com

Or just get a rebuilt one, throw your FB or FC alt in the box for the core and wait till some dumbass is working at the store to return it.

 

Should the upgrading of an Alternator exceed the electrical load In the FB, you'd burn out fuses before the wiring and associated.

 

The TII alternator at 80 amps presents no problem whatsoever for the old stock wiring in a 1980 chassis with the simple addition of an 10 gauge or better cable going directly to the battery. I can't imagine a 20 ampere-extra feed ability if regulated at 13.8 volts would cause any problem. None at all...nope...

And there never ever was a problem with alternator or battery with the direct connection, so don't bring it up...

 

Again, I'm selling FD Alternators, Necessary Harness Plug with optional Double Pully. Check It In the 2nd Gen Parts Forum. Cheers...

 

I know the old rotaries had 50 amp lead strip type fuses. A newer internal reg alt rated at 50amps works perfectly. You've just got to get a T shaped connector and splice it in and loop or mod the wires that used to connect to the old voltage reg (metal box). I've got like four of the later style alts around here (three with large housings and one smaller non-external-fan style).