Need higher output Alternator? Suggestions?
#670335
04/15/10 11:23 AM
04/15/10 11:23 AM
|
Joined: Jan 2005
Posts: 1,527
minnesota
Kirby
OP
pro stock
|
OP
pro stock
Joined: Jan 2005
Posts: 1,527
minnesota
|
Still working on my Cuda' project, and I'm getting closer. I have put tons of electrical stuff on it, and I'm thinking I'll have put put a higher output alernator on ie. 100 amp. I have a stereo/amp, electric fuel pump,H1 H4 headlights on relays, A/C, Electric fans, etc. I ran a solid wire through the bulk head connector, and have eliminated the Amp meter. I have been using the Bouchillon brackets for the A/C- so I have a single groove alt on there now. What is the most recommended alt? Is it going to be a problem with the pulleys/brackets that I have in there now? Wiring? Thanks- I'm sure this has been covered before- but I couldn't find it by searching. 
|
|
|
Re: Need higher output Alternator? Suggestions?
[Re: Kirby]
#670336
04/15/10 12:33 PM
04/15/10 12:33 PM
|
Joined: Aug 2007
Posts: 6,095
Valencia, España
NachoRT74
master
|
master
Joined: Aug 2007
Posts: 6,095
Valencia, España
|
one of the best recomended is Tuff Stuff brand... I have heard bad things about Powermasters
but I can talk just by reference, not personal experience.
I will go with TuffStuff when I can afford one ( $130-150 rate )
With a Charger born in Chrysler assembly plant in Valencia, Venezuela
|
|
|
Re: Need higher output Alternator? Suggestions?
[Re: NachoRT74]
#670337
04/15/10 01:32 PM
04/15/10 01:32 PM
|
Joined: Sep 2007
Posts: 576
Escondido, CA
kick_the_reverb
mopar
|
mopar
Joined: Sep 2007
Posts: 576
Escondido, CA
|
Stock Denso from a 89-91 Ram Van, 140 amp option.
Make sure you use a decent sized crank pulley (so it's not turning too slow), and use heavy gauge wires. I used #4 welding cable as the positive wire, and I added a #4 welding cable as the ground. My battery cables are 1/0.
Ran
"Hey mister, something's wrong with your car, it idles roughly" - number one comment I got in Israel when daily driving a 70 Barracuda with a lopey cam.
Currently working on - 1966 Dodge A100 van 318/auto
Finally - disc brakes on the front.
In the plans - rear disc brakes, B&M 250 blower
|
|
|
Re: Need higher output Alternator? Suggestions?
[Re: Kirby]
#670340
04/15/10 05:10 PM
04/15/10 05:10 PM
|
Joined: Jun 2008
Posts: 1,822
Colorado
denfireguy
top fuel
|
top fuel
Joined: Jun 2008
Posts: 1,822
Colorado
|
To determine how much alternator you need, you just need to total your current draw. I think you will be amazed at how little you have added.
The head lights you put in draw less current than the old tungsten lamps the car came with. The air only draws 7 amps more than the heater. The stereo is probably fused at 15 amps and draws about half that. The fuel pump if it is a Holley or a Carter draws 2 amps. The relays that run your headlights will be another amp or so. The only thing I dont have a feel for would be the radiator fans. I would have to look that up.
If you keep the battery trickle charged or battery removed when the car is long term storage, the total current draw will be in the 35 amp range with everything on. The only heavy lifting the alternator does is recover from a low or dead battery. That is why it is always better to charge a battery rather than jump it. Since your removed your ammeter, you will not know when the battery is drawing heavy current charging up.
Craig
2014 Ram 1500 Laramie, 73 Cuda
Previous mopars: 62 Valiant, 65 Fury III, 68 Fury III, 72 Satellite, 74 Satellite, 89 Acclaim, 98 Caravan, 2003 Durango
Only previous Non-Mopar: Schwinn Tornado
|
|
|
Re: Need higher output Alternator? Suggestions?
[Re: denfireguy]
#670341
04/15/10 05:12 PM
04/15/10 05:12 PM
|
Joined: Oct 2003
Posts: 3,698
NE Oklahoma
Von
master
|
master
Joined: Oct 2003
Posts: 3,698
NE Oklahoma
|
Look in the tech archives for a thread on using a GM CS120(I think that is the right number) alternator.
I am using one and AFAIK it works great!! Easy to fab and wire in also.
72 RR, Pump gas 440, 452s, 3800 lbs, Corked, ET Radials,. 11.33@117.72.
Same car, bone stock 346s, 9.5 comp, baby solid. 12.24@110.
|
|
|
Re: Need higher output Alternator? Suggestions?
[Re: Von]
#670342
04/15/10 05:47 PM
04/15/10 05:47 PM
|
Joined: Mar 2005
Posts: 862
Iowa State fan
kilroy
super stock
|
super stock
Joined: Mar 2005
Posts: 862
Iowa State fan
|
Hook yourself up with a denso out of a modern dodge truck that we like to rob so many part out of. They take an external regulator just like what is already in your car and they have high output. they are all over junk yards.
1973 Charger, former SE, former auto
I'm not trying to be difficult, it comes naturally....
|
|
|
Re: Need higher output Alternator? Suggestions?
[Re: Von]
#670343
04/15/10 06:20 PM
04/15/10 06:20 PM
|
Joined: Apr 2006
Posts: 4,220
West Plains, MO
DrCharles
master
|
master
Joined: Apr 2006
Posts: 4,220
West Plains, MO
|
Quote:
Look in the tech archives for a thread on using a GM CS120(I think that is the right number) alternator.
I am using one and AFAIK it works great!! Easy to fab and wire in also.
Were you thinking of a CS130? those are very common. I picked one up at a swap meet last summer for $20 expecting to use it for a core, but it tested perfect 
Electric fans big enough to cool a big-block on the street may well pull more than all the other loads put together... think 30-40 amps!
|
|
|
Re: Need higher output Alternator? Suggestions?
[Re: DrCharles]
#670344
04/15/10 08:24 PM
04/15/10 08:24 PM
|
Joined: Jun 2008
Posts: 1,822
Colorado
denfireguy
top fuel
|
top fuel
Joined: Jun 2008
Posts: 1,822
Colorado
|
Quote:
Quote:
Look in the tech archives for a thread on using a GM CS120(I think that is the right number) alternator.
I am using one and AFAIK it works great!! Easy to fab and wire in also.
Were you thinking of a CS130? those are very common. I picked one up at a swap meet last summer for $20 expecting to use it for a core, but it tested perfect
Electric fans big enough to cool a big-block on the street may well pull more than all the other loads put together... think 30-40 amps!
Just looked it up. The biggest one on Summit site was the Flex-a-lite 775 and it draws 28 Amps. That takes you up to about 65 Amps total. That would be 812 Watts or about 1.1 horsepower lost in the alternator, if conversion is 100% efficient.
Craig
2014 Ram 1500 Laramie, 73 Cuda
Previous mopars: 62 Valiant, 65 Fury III, 68 Fury III, 72 Satellite, 74 Satellite, 89 Acclaim, 98 Caravan, 2003 Durango
Only previous Non-Mopar: Schwinn Tornado
|
|
|
Re: Need higher output Alternator? Suggestions?
[Re: Dodgem]
#670349
04/16/10 01:45 AM
04/16/10 01:45 AM
|
Joined: Jan 2003
Posts: 31,018
Oregon
AndyF
I Win
|
I Win
Joined: Jan 2003
Posts: 31,018
Oregon
|
Quote:
I got this one too from mancini's! My lord it works good.
http://chucker54.stores.yahoo.net/delialbrpk.html
Glad to hear that you like it. That is another one of the kits I make. In fact I was just out in the shop getting a big order of those kits ready to ship out the door. That Denso kit has been super popular over the years.
|
|
|
Re: Need higher output Alternator? Suggestions?
[Re: ahy]
#670350
04/16/10 02:18 AM
04/16/10 02:18 AM
|
Joined: Aug 2007
Posts: 6,095
Valencia, España
NachoRT74
master
|
master
Joined: Aug 2007
Posts: 6,095
Valencia, España
|
Quote:
It sounds like a BB with AC? If the old small case MOPAR style isn't enough - and it sounds like it isn't - its tougher to upgrade with AC. The pivot and bracket bracing is different than non AC cars.
With stock style heads, you may fit the GM case Powermaster 140 A unit. I have Ed heads and not enough clearance. I bought one and had to return it. I ran the 75 A Powermaster MOPAR alternator for a while but it wasn't enough. Discharge at idle and barely enough when running with brights and AC.
I wound up going back to the "big case" MOAPAR alternator and brackets from my core engine ('78 Cordoba). Its 100A with lots of idle output. Its a little heavy but performance is great. Rebuilt 100 A alternators are available on order from the chain part stores
I had to extend the water neck about 1 1/2" so the radiator hose would clear the belts and mount the receiver/dryer about 1 1/2" back (Challenger) to clear the alternator since it sticks out more.
Pic in the attached document.
Yeah thast an Leece Neville alt used mostly on Police and Cab packaged cars, same as tow package as far what I know. ( pic attached )
but is not really related if AC or not. Mostly AC cars got the regular alt.
another option is use a 78 amps alt, available on less tha $50 at auto parts stores
same than the one on this article:
http://www.moparmusclemagazine.com/techa...ator/index.html
|
|
|
Re: Need higher output Alternator? Suggestions?
[Re: NachoRT74]
#670351
04/16/10 10:55 PM
04/16/10 10:55 PM
|
Joined: Sep 2007
Posts: 576
Escondido, CA
kick_the_reverb
mopar
|
mopar
Joined: Sep 2007
Posts: 576
Escondido, CA
|
Just realized I said I used a Denso 140 amp, sorry I meant the 120 amp that everyone was talking about. To me the Denso alts look a lot more at home on a Mopar engine than those GM alts.
Ran
"Hey mister, something's wrong with your car, it idles roughly" - number one comment I got in Israel when daily driving a 70 Barracuda with a lopey cam.
Currently working on - 1966 Dodge A100 van 318/auto
Finally - disc brakes on the front.
In the plans - rear disc brakes, B&M 250 blower
|
|
|
|
|
I attached a Fluke voltmeter to the battery and turned on the headlights and cooling fan while the engine idled and only dropped .1 Vdc 
