OLDS High ampere rating alternator choices

[rfpowerdude]

With the electric fans both operating, I am likely pulling upwards of 80A. I need a new alternator that is like 140-160A. The stock one cannot keep up at idle. Any good suggestions for the silver car with the 455 BBO?
What are others using?

 

[rfpowerdude]

I bought this:

Summit Racing SUM-810344 Summit Racing™ Alternators | Summit Racing

Free Shipping - Summit Racing™ Alternators with qualifying orders of $109. Shop Alternators and Generators at Summit Racing.

www.summitracing.com

Should be here by Tuesday. Hopefully, this takes care of the shortfall in current...

 

[565bbchevy]

I wish you luck, as I have found out after going through a few name brand hi amp alternators over the years in my Monte that the idle amperage is lacking in most of these, I ended up getting a DC Power 180 amp that puts out 130+ at idle that solved my issues and comes with an actual dyno sheet but not cheap by comparison.
The peace of mind watching my voltage gauge stay at 14 volts with my accessories on at idle made it worth every penny though

 

[olds307 and 403]

I bought this:

Summit Racing SUM-810344 Summit Racing™ Alternators | Summit Racing

Free Shipping - Summit Racing™ Alternators with qualifying orders of $109. Shop Alternators and Generators at Summit Racing.

www.summitracing.com

Should be here by Tuesday. Hopefully, this takes care of the shortfall in current...

I don't get why they use the 10 SI casing for high amperage aftermarket alternators. GM designed the 12 SI for a reason, a bigger fan and a more open back let out more heat created by the 94 amps some put out. The last Wilson 12SI reman 94 amp was a POS. There was a CS130 option on 88 and up Olds V8's. I had a GM Mexican reman, also lasted 2 years. This one has a good customer rating, which is a start. The only high amperage 10SI alternator that lasted much past a couple of years for me probably put out more like 80 amps. They just aren't designed to take extra heat made by the higher amperage created. My 110 amp 10 SI, I believe it was, got ridiculously hot and last 2 years. Being plain vs my chrome case may also help it cool better. I would also add a 4 gauge looped battery cable to the alternator battery terminal. I wish you luck.

 

[Wageslave]

I don't get why they use the 10 SI casing for high amperage aftermarket alternators. GM designed the 12 SI for a reason, a bigger fan and a more open back let out more heat created by the 94 amps some put out. The last Wildon 12SI reman 94 amp was a POS. There was a CS130 option on 88 and up Olds V8's. I had a GM Mexican reman, also lasted 2 years. This one has a good customer rating, which is a start. The only high amperage 10SI alternator that lasted much past a couple of years for me probably put out more like 80 amps. They just aren't designed to take extra heat made by the higher amperage created. My 110 amp 10 SI, I believe it was, got ridiculously hot and last 2 years. Being plain vs my chrome case may also help it cool better. I would also add a 4 gauge looped battery cable to the alternator battery terminal. I wish you luck.

+1 on the CS130. If you can get one to fit, even a CS144 would be a good option. One of those can get up to 180-200 amps.

Edit: Also +1 on the upgraded power lead.

 

[403Olds]

+1 on the CS130 It worked well for me. I think it was off an 89 Cadilac with a 307, fits up perfect, just need the adapter harness for $20.

 

[rfpowerdude]

I looked up the stock Caddy with 307 and they all look like 12si cases. I could be wrong though.

1990 CADILLAC BROUGHAM 5.0L 307cid V8 Alternator / Generator | RockAuto

RockAuto ships auto parts and body parts from over 300 manufacturers to customers' doors worldwide, all at warehouse prices. Easy to use parts catalog.

www.rockauto.com

Has anyone done an upgraded CS130 or CS144 in a Cutlass that could post pics?

 

[olds307 and 403]

Put in for a 1990 Cutlass Cruiser on Rock Auto. A bunch of 105 amp version come up. I had one on my 88 Cutlass, other than wiring, fit right in place of 10 SI it replaced. It charged great for 2 years then died. They got me a POS 12SI, since they no longer carried the Champion, Mexican AC Delco. A Wilson reman replace it under warranty, what a pile it was, they used be good. I currently have all new parts Remy gold serpentine CS130 105 amp on the 70S, no issues with the Dodge Stratus cooling fans, draw plenty of amps, blew multiple 40 amp relays, 3+ years, so far, so good. I see they changed the warranty from lifetime to 2 years, since I bought mine.

 

[rfpowerdude]

Here's a nice CS144 case one

Tuff Stuff Performance 7290NF Tuff Stuff Performance High-Amp Output Stealth Black Alternators | Summit Racing

Free Shipping - Tuff Stuff Performance High-Amp Output Stealth Black Alternators with qualifying orders of $109. Shop Alternators and Generators at Summit Racing.

www.summitracing.com

Here is a CS130 case one that seems like it would work

Powermaster 578021 Powermaster Street Alternators | Summit Racing

Free Shipping - Powermaster Street Alternators with qualifying orders of $109. Shop Alternators and Generators at Summit Racing.

www.summitracing.com

What mods are necessary for a CS144 case style? Is the pivot to clamp bolt distance different?

 

[403Olds]

This is the one that I got:

New Alternator Replacement For Cadillac Brougham 88-90 Buick LeSabre Chevy Caprice 5.0L 5.7L 88-90 10463064, 10463090, 10463106, 1101186, 1101229, 1101275, 1101292, ADR0176, 40012070

CS 130 105 Amp
Then the jumper:

Alternator Wiring Harness Adapter - Compatible with GM 10SI 12SI Case to CS130