High amp @ idle alt.

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Been searching for a high amp @ idle Chrysler 2 pulley round back. Found one a Quality Power.

http://www.qualitypowerauto.com/catalog.php?item=23&catid=43&ret=catalog.php%3Fcategory%3D43

Their site shows one with 55 @ idle. Don't care that much for the price but...anyone have one/verify that?

Any body know of other high amp at idle stock look alt's out there? Any help appreciated.

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The 55 amp @ idle is about as good as you are going to get with the factory type alternators. I have a "Tuff Stuff" 100 amp unit (squareback) on my Charger which is rated at 60 amp idle...this was the best I could find without spending in the area of $400-500 for a higher output that would use the factory brackets and all and still would not look OEM at all...

You may have an easier time if you are willing to use the factory style squareback as they have more options. Unless you are running some crazy setup (elec fans/pump/etc) then even the OEM squareback would be a noticeable difference from the roundback unit. You could drop one in without cutting your wires or changing brackets most likely. You can even get the later 78 amp factory version that will drop right in as well. That should be more than enough for a "normal" application.

The factory squareback would probably be the easiest/cheapest upgrade but if you want the roundback, the unit on your link is about as good as it's going to get.

Good Luck!

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AC Delco CS144. It puts out a bit over 115 amps at idle & 220 amps at a fast idle,

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AC Delco CS144. It puts out a bit over 115 amps at idle & 220 amps at a fast idle,

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That is impressive specs. How do you wire it in?

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I followed the Mad Electric principles using an underhood-central distibution lug, remote voltage sensing, relays on everything that needs high amperage, and proper fusing for all cables & wires.

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I followed the Mad Electric principles, remote voltage sensing,

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That's what I was wondering about was if it had 2 field terminals like ours, then there's something about it turning off the idiot light on GM's when it's charging. Will the Madd site have all this info?

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I'm not using the "L", as I have a voltage gauge in place of my ammeter, and I'm not using the "P" wire either.

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Been searching for a high amp @ idle Chrysler 2 pulley round back. Found one a Quality Power.

http://www.qualitypowerauto.com/catalog.php?item=23&catid=43&ret=catalog.php%3Fcategory%3D43

Their site shows one with 55 @ idle. Don't care that much for the price but...anyone have one/verify that?

Any body know of other high amp at idle stock look alt's out there? Any help appreciated.

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The 55 amp @ idle is about as good as you are going to get with the factory type alternators. I have a "Tuff Stuff" 100 amp unit (squareback) on my Charger which is rated at 60 amp idle...this was the best I could find without spending in the area of $400-500 for a higher output that would use the factory brackets and all and still would not look OEM at all...

You may have an easier time if you are willing to use the factory style squareback as they have more options. Unless you are running some crazy setup (elec fans/pump/etc) then even the OEM squareback would be a noticeable difference from the roundback unit. You could drop one in without cutting your wires or changing brackets most likely. You can even get the later 78 amp factory version that will drop right in as well. That should be more than enough for a "normal" application.

The factory squareback would probably be the easiest/cheapest upgrade but if you want the roundback, the unit on your link is about as good as it's going to get.

Good Luck!

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Is that Tuff Stuff black powder coat only or can you get'm natural.

The 78 amp,...is that a square back or the late 80's kinda GM looking black plastic backed deal.

The reason I'm pursuing the high amp/idle is if I decide to run the Monster MB fan, and be stuck in traffic.

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The one I put in my car is natural. I think you can get them in black, natural, polished, or chrome. I like it because it is a drop in deal, no mods required like bracket headaches and wiring splices.

The 78 amp is a square back unit with some very slight differences from the 60 amp unit but will still drop right in place of it. Still will use the same wires, brackets, etc. It doesn not look different at all for the casual observer.

I had the best luck finding the 78 amp units from O'Reiley's if you have those near you. The other chains were pushing the 60 amp units for some reason. The 78 amp unti can be had for around $50-60 and the Tuff Stuff is around $150.

Also remember that most alternator manuafacturers define "idle" as 2400 alternator RPMs which using stadard pulleys will mean 800 engine RPMs.

If you are stuck sitting in traffic with some huge amp draw, you may still need to drop her in neutral or park to get the idle up to actually make the 60 amps they state. Setting the idle up will help to but I wouldn't want an 800 RPM idle in gear.

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So is the 78 amp, 78 @ 2400 rpm, & look fairly close to the 74 square back.

O'Reillys $50-60 I guess I can Google them for a pic & info.

Tuff Stuff black would look good with black wrinkle V/covers & the black P/steering pump. Would be a nice balance of color,... ...

As far as sitting in traffic...its a 4 spd

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Ok, appears to be the natural finish Tuff Stuff 60 amp at idle, as far as staying with a stock look, & bracket ease.

I'll have to add up all the possible future electrical add-ons & see if 15-20 amps will be enough over the ~40 that the Monster fan uses at wide open. Don't sound like a whole lot of room to play there. Thanks for the help.

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If the electric fans you installed are really a constant 40 amp draw when engaged, you are probably going to have a discharge at idle even with the Tuff Stuff unit.

My fans draw 20 amps (tested and verified) and my 100 amp alternator will start losing ground (discharging) with the headlights on and foot on the brake (brake lights on) at idle. Once I rev her up, I'm fine...back to charging. This is without other accessories like radio and blower motor/AC going.

You may have to go to a newer alternator style in your case or use a fan controller to turn those fans down a bit to lessen the load. If you plan on sitting in traffic idling a lot with those fans on, I'd make sure I had a good battery so you have plenty of reserve!

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This is the problem with the Mopar and Denso units, relatively low output at idle.

Like stated above, they're fine if you don't have a high amp draw, but, if you have amperage-hungry effective electric fan(s), powerful electric fuel pump(s), bright headlights, air conditioning, MSD, and a stereo; you're going to need an alternator capable of putting out some serious amperage while the car is idling or you will be running on the battery.

Not everyone needs or wants the higher idle output. Reworked Mopar alternators and Denso alternators work very well for those with moderate amp loads.

A lot of Mopar guys just live with the discharge at idle issue, but for those who want 14+ volts at idle with the A/C on sitting at a stop light, fans running, fuel pump humming. headlights on with your foot on the brake; the CS 144 is a realatively low-cost, easy-to-fit solution to this historic Mopar issue.

Be warned however, that it is only as good as the rest of your electrical system. As most here know, there are issues with the power distribution layout, bulkhead connector and through the amp gauge power flow.

Mad Electric has some very good insight into resolving these issues, but even his ideas can be taken a few steps farther.

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CS-144

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To go with that one would a rebuilt one be OK & what year/app should a person ask for?

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