Alternators? (Page 1/1)
hercimer01 JUL 21, 12:08 AM
My 88GT needs an alternator. I'm looking at higher output alternators 140 amps or 160. Anyone have any recommendations? Do they actually put out more at idle?

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fierosound JUL 21, 12:28 PM
CS130 - 140amp, 170amp and more...
https://alternatorparts.com/cs130-alternator.html

CS130 220amp rebuild kit here:
https://www.aspwholesale.co...rade-kit-p12472.html


Both my cars have been upgraded to CS130 110amp alternators I got from a local rebuilder (not guys above).
Check with an auto electric alternator/starter rebuilder in your area.

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[This message has been edited by fierosound (edited 07-21-2020).]

hercimer01 JUL 21, 01:14 PM
88 Fieros use a 7802-11 alternator.
fierosound JUL 21, 01:20 PM

quote
Originally posted by hercimer01:

88 Fieros use a 7802-11 alternator.



Yeah - if you want a stock amperage CS130

More info here:
http://www.fiero.nl/forum/Forum9/HTML/000035.html

[This message has been edited by fierosound (edited 07-21-2020).]

theogre JUL 21, 04:23 PM

quote
Originally posted by hercimer01:
My 88GT needs an alternator. I'm looking at higher output alternators 140 amps or 160. Anyone have any recommendations? Do they actually put out more at idle?

High Amp alt's doesn't make a lot more power at idle, worse for people w/ "Power Pulley" BS. Often you only get advertise peak power driving on the highway even w/ OE pulleys.

If you think you need high amp "mod's" note that many need more space to mount them w/ external parts on them etc. and why some won't fit in OE locations of a lot of cars. "Shoe horn" to make them fit may see to work but often makes them to run way hot and quickly fries.

"Big Sound" systems often need capacitors or can wreck any alt and even the battery. Rest of car often hates "Big Sound" systems that hammers the electrics too.

See my Cave, Watt Story

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hercimer01 JUL 21, 11:30 PM
Thanks Ogre.
I had a short in my cigarette lighter light and it took some time to find.
Now my battery needle is just south of mid deflection with the AC on at cruise.
The alternator just can't keep up any more. It's a PepBoys reman. Shes a gonner.
pmbrunelle JUL 21, 11:53 PM
What happens if you give the car some gas to raise the idle RPM?

A stock Fiero is too complex and electronified to adjust its idle by simply turning the idle screw (not generally recommended), but you could have a custom chip for the ECM with an idle that is perhaps 100 or 200 RPM above normal.
theogre JUL 22, 12:01 PM

quote
Originally posted by pmbrunelle:
What happens if you give the car some gas to raise the idle RPM?

A stock Fiero is too complex and electronified to adjust its idle by simply turning the idle screw (not generally recommended), but you could have a custom chip for the ECM with an idle that is perhaps 100 or 200 RPM above normal.

"not generally recommended" because creates more problems, more so w/ AT cars.
And that's "dumb" powertrains w/o any electronics.

AT cars w/ high idle even affects braking many times.
pmbrunelle JUL 22, 07:51 PM
The car has a fast idle when the engine is cold, and it is driveable in that condition, so there should be some wiggle room to increase the idle RPM when the engine is at operating temperature.