93 alternator question

[tery]

Can I use either a 90 or a 120 amp alternator on a 93 ATX? Is it better to use the higher amp just to have more elec so things operate with less electrical"strain" as it were??
tks in advance for your expertise...
T

 

[rubydist]

no, the atx cars only ever had one alternator. it mounts completely differently from the mtx alternator.

for the mtx cars, (which had the 90/120 variant) the mounting is enough different that they do not interchange. you need the correct front bracket for whichever alternator you want to use.

 

[tery]

THankas for the info Fred...so...Why does one choose 120 over 90 amp or vice versa??

 

[kevinspann]

You don't choose. You have no choice.

89-93 MTX cars use a 90 amp alternator

94-95 MTX cars use a 130 amp Ford 3G alternator - NOT the same alternator case as ATX.

All ATX cars use a 130 amp Ford 3G alternator - NOT the same alternator case as MTX.

 

[SHOdded]

You can have a local shop custom build your alternator to a higher spec. Not too long ago, someone on this forum had this done, 200 amps IIRC.

 

[sperold]

I have found the 90 amp alternators to be more problem prone than the 130 amp model, in my personal experience. So much so, that I bought all the bracketry to convert the smaller unit to the 130 amp model. See http://www.shoforum.com/showthread.php?t=48847 for the details on that.
The strange thing is, from the day that the last of these parts arrived, I have not had one problem with my 90 amp unit, and it is still in place, and that was years ago.

 

[tery]

It knew you were going to put it out to pasture, so it bucked up and refuses to fail or have problems while you are looking....just like a little kid11