How to: gm large case alternator swap (145a) - Page 2 - Audio & Electronics Forum

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Re: How to: gm large case alternator swap (145a)
Monday, September 28, 2009 9:55 AM
this thread sucks




Re: How to: gm large case alternator swap (145a)
Monday, September 28, 2009 10:16 AM
I think I'll have to do this for @!#$s and giggles.

Nothing wrong with a little extra ooomph



JGM T-SHIRTS!!!!


In Loving Memory of Phil Martin December 14 2005
Alexis: Dustin, you're ghey, lol. I am better. I have tits, and tits rule all.

Re: How to: gm large case alternator swap (145a)
Monday, September 28, 2009 12:21 PM
Im getting another alt in tomorrow. Hopefully its right this time.



Re: How to: gm large case alternator swap (145a)
Monday, September 28, 2009 2:39 PM
i made an adjustable regulator for mine, i charge the "stock" battery at 15.5 lol

its not boiling or swelling yet



Re: How to: gm large case alternator swap (145a)
Monday, September 28, 2009 3:46 PM
And you STILL wont tell me how to do it!



Re: How to: gm large case alternator swap (145a)
Tuesday, September 29, 2009 8:35 PM
lolumad?



Re: How to: gm large case alternator swap (145a)
Wednesday, September 30, 2009 12:27 PM
Yes. I want more voltage. I wanna sit at 15v but I dont wanna spend all the dough of the MLA



Re: How to: gm large case alternator swap (145a)
Wednesday, September 30, 2009 12:33 PM
Are you selling the batt on SMD?




Your car may do 13 sec @ 103 mph, but my car does 146db @ 35 hz.
Re: How to: gm large case alternator swap (145a)
Wednesday, September 30, 2009 2:17 PM
Lanman31337 - Cavfire wrote:Are you selling the batt on SMD?


thinking about keeping it, ive been persuaded to wall the cavalier i think.



Re: How to: gm large case alternator swap (145a)
Wednesday, September 30, 2009 6:19 PM
Do it!



Re: How to: gm large case alternator swap (145a)
Saturday, October 03, 2009 8:14 AM
Anyone who does this is going to need a smaller pulley. I cant find an inch longer 5 groove. Ive been told twice that ours is the longest 5 groove made.




Re: How to: gm large case alternator swap (145a)
Saturday, October 03, 2009 1:08 PM
Get a 6 groove and cut off the extra rib we've done it on a few cars for s/c's and things.



JGM T-SHIRTS!!!!


In Loving Memory of Phil Martin December 14 2005
Alexis: Dustin, you're ghey, lol. I am better. I have tits, and tits rule all.

Re: How to: gm large case alternator swap (145a)
Saturday, October 03, 2009 6:17 PM
Ill do that if I decide to not get a smaller pulley. Im leaning towards the pulley since it will spin the alt faster.



Re: How to: gm large case alternator swap (145a)
Wednesday, November 25, 2009 6:05 AM
Wait.....so wouldnt it work to run that alternator and use an under drive pulley for the original 2200 alternator and not have to get a different belt?? I know its probably going to get shot down...but just popped in my head lol


"Hondas are like tampons, every pussy has one!!!"
Re: How to: gm large case alternator swap (145a)
Wednesday, November 25, 2009 12:16 PM
Thats what Im doing. Running stock belt and a smaller pulley. My pulley is just a generic pulley I got at the local Auto store.



Re: How to: gm large case alternator swap (145a)
Tuesday, February 16, 2010 12:14 PM
I just found a guy here locally to rebuild the stock alternator. All heavy duty parts and a 220 Amp stater. No issues with belts and pulleys and more power then I could ever draw.
Re: How to: gm large case alternator swap (145a)
Tuesday, February 16, 2010 12:16 PM
Well except for changing the stator will cause youre output at low rpms to drop. Youre probably doing 220 while driving but at idle you probably are the same or less than stock.

Hence why people buy DC power and Iraggi alts since they arent just HO stators. Theyre completely rebuilt alts.




Re: How to: gm large case alternator swap (145a)
Tuesday, February 16, 2010 6:05 PM
That was a concern I expressed. The stock 105 amp alternator has a two wrap stater. So we decided to go with the new 220 ampwhich has a four wrap stater, so I should gain 40-50 amps at idle. But I guess we'll see.
Re: How to: gm large case alternator swap (145a)
Tuesday, February 16, 2010 6:25 PM
So...I looked it up and thought this might help some people out.....an applications list of what all these alternators came on.....

Cadillac
Escalade 5.3l,6.0l (2003-2004)

CHEVY
Chevy Astro Van 4.3 liter engines(2001-2004)
Chevy Avalanche 5.3, 8.1 liter, engines(2002-2004)
Chevy Express 4.3 , 5.0l, 5.7, 6.0, 6.5, 8.1 liter engines (2001-2004)
Chevy Silverado 4.3, 4.8, 5.3, 6.0, 6.5, 6.6, 8.1 liter engines (1999-2005)
Chevy Suburban 5.3,6.0,8.1 liter engines (2000-2005)
Chevy Tahoe 4.8,5.3,6.0,8.1 liter engines (2000-2005)

GMC
GMC Safari 4.3 liter engine (2001-2004)
GMC Savana 4.3,5.0,5.7,6.0,6.5,8.1 liter engines (2001-2004)
GMC Sierra 4.3,4.8,5.3,6.0,6.5,6.6,8.1 liter engines (1999-2005)
GMC Yukon 4.8,5.3,6.0,8.1 liter engines ( 2000-2005)


"Hondas are like tampons, every pussy has one!!!"
Re: How to: gm large case alternator swap (145a)
Tuesday, February 16, 2010 6:27 PM
I linked it up there already sir.



Re: How to: gm large case alternator swap (145a)
Tuesday, February 16, 2010 6:29 PM
damn....reading owns me...well....now theres 2! ha lol


"Hondas are like tampons, every pussy has one!!!"

Re: How to: gm large case alternator swap (145a)
Wednesday, February 17, 2010 11:05 AM
Duckofdodo wrote:I just found a guy here locally to rebuild the stock alternator. All heavy duty parts and a 220 Amp stater. No issues with belts and pulleys and more power then I could ever draw.


Issue with the CS130D is heat, and then your voltage regulator tends to @!#$ the bed. Large case GM alts are beefier, and they have a lot better cooling. That's the whole reason I went large case on my last build.




Your car may do 13 sec @ 103 mph, but my car does 146db @ 35 hz.
Re: How to: gm large case alternator swap (145a)
Friday, June 25, 2010 10:26 PM
TheSundownFire (JBO Chat) wrote:Thats what Im doing. Running stock belt and a smaller pulley. My pulley is just a generic pulley I got at the local Auto store.


Did you ever get this set up? If so, what kind of pully do I need to get and are there any issues with it spinning faster?

It appears my alternator is pooched. I got it tested and it crashed there computer... So i thought this would be a good upgrade.

and Sorry to bring this thread back, but i figured it would be better then starting a new one when this is already here.
Re: How to: gm large case alternator swap (145a)
Saturday, June 26, 2010 12:30 AM
I really havent figured out the pulley part. My pulley is a little too small and the belt has some slop in it but it does the job. The stock pulley is 2.25 inches so go from there I guess.

Just make sure you dont use too big of a pulley and put too much tension in the belt. It can wear out your main bearings.



Re: How to: gm large case alternator swap (145a)
Saturday, June 26, 2010 11:02 AM
Alright, so maybe like a 1.5 inch pully? and so there is no problem with it spinning faster?
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