When to upgrade from CS130 to AD244 Alternator.

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blueburban87

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Howdy gang, This post will just be my experience and what worked best in my application.
You may be looking for something similar or already made the swap :)

did you ever sort out your voltage issues... I did, and ran a CS130 to AD244. Best upgrade in an old truck especially if your going to EFI and electric fans. The older trucks CS130 worked fine due to either Carburation ( TBI units didnt pull much nor did the fuel pump) driver side CS130 to AD244 bracket works perfect, just us a Grade 8 1/4 3" bolt and add your ground to that as well, there is enough space. the Painless wire with Diode worked perfect if you have the original CS130 plug that only had two wires. OR if you had more wires there is an adaptor that is plug and play, I'll leave links.
Back to the why you want to upgrade to an AD244 (Why I did)
IF you have EFI, AC, Electric fans. ( Not even mentioning if you upgraded your sound system)
Its not that you need all the amps, its you need the amps at Idle the CS130 is good for 40 ish at idle and the ad244 is good for 100 amps. That's a game change if you want all your voltages happy around 13.8-14.2

as you can imagine the CS130 wasn't built for all the new modern upgrades and will leave you stranded if you do any electrical upgrades that will add up to 40amps at idle, over heating your alternator, burning things up, failing and all the stuff that sucks.

About Oldblue
- 1987 Suburban
- Engine swap in 2020
- Blueprint BP3503CT1 ( Roller Vortec head engine)
- Holley Gen 1 Sniper
- Hyperspark ignition, Timing table managed in software ( IMO, this is a must combo)
- Dual SPAL 1775 CFM fans ( 23 amp run amps & 40 amp kick on)
- Side note, follow the Holley instructions to a T. Also in my experience to eliminate RFI/EMI noise just loom any wire you terminate individually and keep away from POwer wires ( sparkplug wires, alternator + wire) ( also another reason to go to AD244 with the internally regulated dual internal fan setup) ( CS130 is regulated as well, seems the AD244 is cleaner signal though)

Here are two harness options.
I went with the Painless options since My CS130 had only two wires.
I cut the end off, and followed the Painless instructions, ( Just a drawing but works)
Pink from the new pigtail to the Factory harness Brown
Brown form the pigtail to solder resister ( slip heat shrink on first) to factory brown/black or what ever color you have.
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Painless Performance 30705 CS-130D Style Internal Fan GM Alternator Pigtail​

https://a.co/d/iqkcVkr

OR
ALTERNATOR CONVERSION PLUG ADAPTER KIT For GM CHEVY CS144 TO CS130D AD244 AD237



Next post will be my Charcoal canister story and what I did about it. ( Hint.... the fuel vents and doesn't put hydrocarbons in the air nor over pressurizes the tank)
 
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Jawzjeep

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Good info. I just got to see this first hand as I used my winch for the first time at idle and watched the volts drop far enough that the TBI engine stumbled just a hair and I found myself wanting a little more juice. An alternator upgrade and a dual battery kit are in my future for sure.
 

blueburban87

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Good info. I just got to see this first hand as I used my winch for the first time at idle and watched the volts drop far enough that the TBI engine stumbled just a hair and I found myself wanting a little more juice. An alternator upgrade and a dual battery kit are in my future for sure.
You'll wish you did it years ago, You just need more idle amperage, the AD244 covers that to 100 amps. Thats huge.
All in it took me 20 min to do the swap.
 

Jawzjeep

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I have a CS144 from my old 99 Yukon I set aside for this purpose. Its been a while and I'll have to check my notes. Think I have to modify them wires. If everything checks out I'll probably use that. Reading your post reminded me I had it just sitting in wait. Now im gonna have to go back through my 'save it' pile and see what else I got.
 

RanchWelder

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This is good info.

Interested in your results and if it altered timing or the Hyperspark map or the fuel map of the Sniper EFI? Did you compare the data before and afterwards?

I'm running a stock ignition / TBI.

I'll bet the timing and or idle setting would have to increase or the truck would stall putting it into geat running the alternator at high-er volts?

How about engine tems at idle?
 

blueburban87

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This is good info.

Interested in your results and if it altered timing or the Hyperspark map or the fuel map of the Sniper EFI? Did you compare the data before and afterwards?

I'm running a stock ignition / TBI.

I'll bet the timing and or idle setting would have to increase or the truck would stall putting it into geat running the alternator at high-er volts?

How about engine tems at idle?
Morning,
Nothing at all changed other than better voltage consistency on demand. The Holley CD box and the fact that everything is direct of the battery seems to keep the voltage clean.
 

86Heirloom

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This sounds like a great upgrade. Does anyone know which bracket would work best for a passenger side installation? Maybe my internet search skills are not up to snuff.
 

blueburban87

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This sounds like a great upgrade. Does anyone know which bracket would work best for a passenger side installation? Maybe my internet search skills are not up to snuff.
Send picture of setup. you should be able to search for a passenger side AD244. but send picture
 

86Heirloom

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Mine has 2 bolts. 1 to the cylinder head and the other adjustable for belt tension. I’m guessing the AD244 has a larger diameter. Maybe I need to visit the parts store first for a measurement.

86 C10 with a 305
 

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RanchWelder

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This guy might know?
He builds custom high amp alternators.
(I'm not certain he diodes and resists' them for charging AGM or Lithium or NOT).
Link:
400 amp GM AD244

Here's a dual serp passenger side mount from an eBay seller/fabricator:
You must be registered for see images

Here's a triple serp passenger side bracket for the 5.7L SBC:
https://i.ebayimg.com/images/g/KfgAAOSwEHhcTTGE/s-l1600.webp

He sells a quad too. It's sick.
You must be registered for see images


Ricko1966 would love this rig for his red wagon battery charger!

Edited: If you look close at the quad setup, apparently it requires a Craftsman 1/2" ratchet to stabilize the central idler pulley!

You gotta zoom in on the last picture to catch it... lol

48 Volts all day and all night.
This would run a small gold mining operation if he fabricated the quad for the BMW M57 150 hp engine. Arguably the finest diesel BMW ever designed.

Check it out, as an alternator drive engine only:
https://www.slashgear.com/1368651/most-reliable-diesel-engines-ever-built/

I'd say with the right purpose for the AD244, it is definitely time to upgrade!
 
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