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Re: looking for high amp alternator that charges at idle
[Re: Pyper70]
#1236448
05/21/12 12:33 PM
05/21/12 12:33 PM
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Joined: Apr 2006
Posts: 4,220
West Plains, MO
DrCharles
master
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master
Joined: Apr 2006
Posts: 4,220
West Plains, MO
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Quote:
Quote:
I'm using an AC Delco CS 144 alternator on my 1970, because it puts out 115 amps at idle over 200 amps above a fast idle. Nothing mentioned here even comes close.
Yeah but most of us don't need 200 amps. What can you possibly install on the car that would require such a large draw?
It's probably the 115 amps at idle he's more interested in. Say you have a large electric fan (40 amps), headlights (20 amps), MSD ignition, electric fuel pump, HVAC blower on high... that's 80 amps right there!
I hate that annoying discharge/dimming at idle from a too-small alternator also. Got a clean "Duralast" rebuilt CS-130 for $20 at a swap meet and surprisingly it tested fine at the local Autozone (the core charge is actually more than $20) 
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Re: looking for high amp alternator that charges at idle
[Re: DrCharles]
#1236449
05/21/12 01:26 PM
05/21/12 01:26 PM
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Joined: Mar 2007
Posts: 3,277
West Coast, USA
jbc426
master
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master
Joined: Mar 2007
Posts: 3,277
West Coast, USA
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Quote:
Quote:
Quote:
I'm using an AC Delco CS 144 alternator on my 1970, because it puts out 115 amps at idle over 200 amps above a fast idle. Nothing mentioned here even comes close.
Yeah but most of us don't need 200 amps. What can you possibly install on the car that would require such a large draw?
It's probably the 115 amps at idle he's more interested in. Say you have a large electric fan (40 amps), headlights (20 amps), MSD ignition, electric fuel pump, HVAC blower on high... that's 80 amps right there!
I hate that annoying discharge/dimming at idle from a too-small alternator also. Got a clean "Duralast" rebuilt CS-130 for $20 at a swap meet and surprisingly it tested fine at the local Autozone (the core charge is actually more than $20)
Exactly!
It's the amps at idle I need. I'm running a pretty significant aftermarket electrical load including: dual high-performance Spal fans, a very large electric fuel pump, MSD, A/C, and I always run with my headlights and driving lights on.
I looked at a lot of the options mentioned here, but nothing even comes close to the CS144 at idle, and it pretty much bolts right in too.
Be prepared to read, understand and upgrade your electrical system to safely distribute and take advantage of all this extra amperage using the Mad Electric concepts and others.
1970 Plymouth 'Cuda #'s 440-6(block in storage)currently 493" 6 pack, Shaker, 5 speed Passon, 4.10's
1968 Plymouth Barracuda Convertible 408 Magnum EFI with 4 speed automatic overdrive, 3800 stall lock-up converter and 4.30's (closest thing to an automatic 5 speed going)
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Re: looking for high amp alternator that charges at idle
[Re: jbc426]
#1236450
05/21/12 03:19 PM
05/21/12 03:19 PM
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Joined: Jan 2005
Posts: 4,404
Michigan
MarkZ
Worthy
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Worthy
Joined: Jan 2005
Posts: 4,404
Michigan
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Check out Mancini Racing. http://chucker54.stores.yahoo.net/delialbrpk.html I bought their 60 amp Denso kit for my small block and couldn't be happier. Running the blower at full blast with the lights on at idle with a turn signal on doesn't dim the headlights anymore. The brackets lined everything up just right too. While I can't speak for the big block 120 amp setup, they do sell the kit with brackets.
1987 Fifth Avenue - 512/518/D60
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Re: looking for high amp alternator that charges at idle
[Re: feets]
#1236451
05/21/12 05:48 PM
05/21/12 05:48 PM
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Joined: Jan 2008
Posts: 299
East Brunswick, NJ
finadk
enthusiast
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enthusiast
Joined: Jan 2008
Posts: 299
East Brunswick, NJ
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Check out www.powerbastards.com, I just picked up the Fitzall 220 unit that puts out 110 amps at idle and a full output of 220A. It is a very nice new unit at a good price. It may not be exactly a drop in but its pretty close, very similar to the Denso unit. I needed to put a bushing in the mounting hole to go from a 1/2 bolt to a 3/8 mounting bolt (got it from McMaster and I have a spare if you need one). The power lug ends up about 3/4 inch from the head, a but close, but no closer than some factory GM stuff I have seen.
Scott
1956 Dodge Custom Royal Lancer (408 Stroker, 4 Wheel Disc Brakes, Rack & Pinion, 6 speed)
2002 Dodge Ram 1500 Quad Cab
1976 Corvette
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Re: looking for high amp alternator that charges at idle
[Re: feets]
#1236454
05/21/12 09:50 PM
05/21/12 09:50 PM
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Joined: Jan 2003
Posts: 28,067
Irving, TX
feets
OP
Senior Management
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OP
Senior Management
Joined: Jan 2003
Posts: 28,067
Irving, TX
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The Denso alternator I had on the hot rod will not fit the Imperial. It would require custom brackets and it hits the cylinder head.
I am not going to alter the positions of EVERYTHING hanging off the front of the engine. There is neither the desire nor the time required to do something that invasive.
I guess I'll stuff a standard style alternator on there and let it go.
We are brothers and sisters doing time on the planet for better or worse. I'll take the better, if you don't mind.
- Stu Harmon
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Re: looking for high amp alternator that charges at idle
[Re: feets]
#1236455
05/21/12 10:42 PM
05/21/12 10:42 PM
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Joined: Nov 2004
Posts: 164
Alberta.......
silvercloud
member
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member
Joined: Nov 2004
Posts: 164
Alberta.......
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What about the last ('87-89) Chrysler alternator series? 90-120 amp IIRC and supposedly bolts in place of the earlier ones. These were the transition piece between the old-style units and the Nippondenso ones. I have never used one but have stumbled across them on Rams/Dakotas at the wreckers. Trying for an image link off RockAuto-let's see if it works.... http://www.rockauto.com/getimage/getimag...tnbr%3D334-2219Here's a couple of Allpar pages referencing it too: http://www.allpar.com/eek/ELECTRIC.HTMLhttp://www.allpar.com/history/mopar/electrical.htmlHTH Jason
An '06 3500 QC 4x4 Laramie CTD with a 6.7 named "Frankentruck", an '80 W200 CC 440/435 yard truck, a Dakota, a Hemi Ram, and a bunch of projects....still working on resurrecting my '74 Charger after a 25 year hiatus for a "quick paint job"! Now a '78 D150 shortbox factory 440 to keep me occupied.
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