The 1947 - Present Chevrolet & GMC Truck Message Board Network







Register or Log In To remove these advertisements.

Go Back   The 1947 - Present Chevrolet & GMC Truck Message Board Network > 47 - Current classic GM Trucks > The 1973 - 1987 Chevrolet & GMC Squarebody Pickups Message Board

Web 67-72chevytrucks.com


Reply
 
Thread Tools Display Modes
Old 11-06-2004, 12:39 PM   #1
PHOENIX
Registered User
 
Join Date: Oct 2002
Location: Phoenix, Arizona
Posts: 4,703
Second Alt and Batt

I have thought about running a second battery and alternator.
The second battery and alt would be for accessories only.
When I have the lights on, sterio pumpin' and electric fan going there is a drain on my power system. The lights dim with the bass. I plan on adding some lights and maybe a few other electrical components later and think the more power the better. Plus with another battery, you can always use it if the first one dies. I need to get a better alternator, but I am interested in a second setup like I have as another option (probably cost more).

Anyway my question is does anyone make a alternator bracket (stock like) for the drivers side of the engine? One like stock, just a mirror image?
If so let me know where to find it.
Also I know I could get a battery and drivers side battery tray no problem.
So the bracket is the only concern as far as materials.
__________________
* AVOID: LOPER'S PERMORANCE / LOPERSPEED.COM OF PHOENIX, AZ & COTTMAN TRANSMISSION *
PHOENIX is offline   Reply With Quote
Old 11-06-2004, 06:26 PM   #2
1974ChevyC10
Overworked and Underlaid
 
1974ChevyC10's Avatar
 
Join Date: May 2002
Location: Flagstaff,Arizona
Posts: 1,279
Quote:
Originally Posted by PHOENIX
I have thought about running a second battery and alternator.
The second battery and alt would be for accessories only.
When I have the lights on, sterio pumpin' and electric fan going there is a drain on my power system. The lights dim with the bass. I plan on adding some lights and maybe a few other electrical components later and think the more power the better. Plus with another battery, you can always use it if the first one dies. I need to get a better alternator, but I am interested in a second setup like I have as another option (probably cost more).

Anyway my question is does anyone make a alternator bracket (stock like) for the drivers side of the engine? One like stock, just a mirror image?
If so let me know where to find it.
Also I know I could get a battery and drivers side battery tray no problem.
So the bracket is the only concern as far as materials.
i dont know about the 2nd alternator but my uncle used to have a 76 GMC that he added an 2nd battery in by using a battery junction.he had all of his accessories wired to the 2nd battery and the main battery ran the vehicle electrics.he got it at some 4x4 shop.
__________________
I'd rather push a Chevy than drive a Ford

The Beast-1978 C10 LWB

Red-1978 C10 LWB

(Uncle Mike)Michael Henry Millett 11/5/1957 to 03/08/2012
Gone but will never be forgotten-RIP

(Uncle Chuck)Charles Manning Gulbronsen Sr 1956-2012
Taken from us to soon but you will live on in our hearts-RIP
1974ChevyC10 is offline   Reply With Quote
Old 11-06-2004, 07:52 PM   #3
Prerunner1982
Registered User
 
Prerunner1982's Avatar
 
Join Date: Oct 2002
Location: Edmond, OK
Posts: 5,904
get a big alt and you wont need 2. The one will charge both, there are a few companies that sell battery isolator kits with a switch to run both, one, or neither.
Prerunner1982 is offline   Reply With Quote
Old 11-07-2004, 07:16 AM   #4
Mike76251
Senior Member
 
Join Date: Mar 2003
Posts: 2,499
If you put on one of those isolater kits (a three position switch)......DO NOT, whatever you do, switch it to the off position when the engine is running.
It will fry the diodes in the alternator in one second flat.

As for a bracket for a driver's side alternator ;
Jeg's page 62-X lists March brackets for either side.
Mike76251 is offline   Reply With Quote
Old 11-07-2004, 12:10 PM   #5
Destructo
Registered User
 
Join Date: Sep 2003
Location: Lewisville, NC
Posts: 1,836
I'd put one big alternator on it and run two batteries with an isolator.
__________________
1985 Scottsdale Shortbed 4x4
Stout 350 with some "upgrades"-700r4-33x12.5" Mud Tires, Warn 8274-50 winch.

2005 Chevrolet Colorado Regular Cab 2wd 4-banger, 5 speed, Street Pack with 3.73 axle.
Destructo is offline   Reply With Quote
Old 11-07-2004, 03:48 PM   #6
rolson1039
Registered User
 
Join Date: Oct 2002
Location: NJ
Posts: 404
you can actually get an isolator at any marine supply store
__________________
so many trucks so little time!!!
rolson1039 is offline   Reply With Quote
Old 11-07-2004, 04:10 PM   #7
Russell
Professional Grade
 
Russell's Avatar
 
Join Date: May 2003
Location: Fort McMurray, Alberta
Posts: 7,915
I would also suggest running the dual battery setup too, and just get one big alternator instead of two smaller ones.
__________________
1995 Chevrolet 2 Door Tahoe (6.6L LBZ Duramax / ZF6 / NP241 with 1 ton solid axle swap)
Russell is offline   Reply With Quote
Old 11-07-2004, 04:27 PM   #8
82BlackBeast
Registered User
 
Join Date: Feb 2003
Location: Wichita Falls, Texas
Posts: 111
what type of battery are you running and what size alternator?
__________________
Matt

'82 Chevy SWB
82BlackBeast is offline   Reply With Quote
Old 11-08-2004, 01:25 AM   #9
Tom
driving is in my blood
 
Tom's Avatar
 
Join Date: Dec 1999
Location: Mesa AZ
Posts: 5,748
I bet your running the stock 63 amp alt, try using a late 80's [
i used a 89 2500 4x4] suburban alt thats 78 amps. Might be all you need. I run my sterio hard and my battery is going on 3yrs in this heat.
__________________
-78 c10 short/step: 388cid, M20, 5/5 drop, lots more. Playtoy and first vehicle.
-98 c1500 x-cab: 5.7L, 17" rims, 5/6 drop, flowmaster, helper bags,NBS rear disk brakes.
-02 Suburban 4x4: leveled front
-CBR600F4i, CBR600RR, CBR1000RR, and standup skis
DISCLAIMER: I cant spell for the life of me.
Tom is offline   Reply With Quote
Old 11-08-2004, 01:28 AM   #10
Crank
Registered User
 
Crank's Avatar
 
Join Date: Aug 2002
Location: Crittenden, KY
Posts: 1,965
Isnt it true the battery is only used for starting the vehicle? Then the alternator runs the accessories. So if that's the case, you only need one battery for startup, and 2 alternators for the accessories, or one high amp alt. or you could get a power capacitor(sp?) to hold power for the low notes of bass...
Brandon
Crank is offline   Reply With Quote
Old 11-08-2004, 10:59 AM   #11
TooMany2count
Who's in CHARGE??????????
 
TooMany2count's Avatar
 
Join Date: Nov 2002
Location: Cahokia, IL
Posts: 454
get a larger output ALT. (some of the later model cars & truck have 100amp alt) and put relays on your extra lights, electric fans.. http://www.madelectrical.com/electrical-tech.shtml <~~~read through this page...joe
__________________
Send a card to a soldier in Iraq
My Music PlayList
Large Marge
Donate Blood,Plasma,Platelets & sign your DONORS CARD & SAVE a LIFE
TooMany2count is offline   Reply With Quote
Old 11-08-2004, 12:18 PM   #12
PHOENIX
Registered User
 
Join Date: Oct 2002
Location: Phoenix, Arizona
Posts: 4,703
Im running a 94 amp alt and a Optima Red Top Battery.
Power is only an issue at idle. I need an alt capable of putting out a lot of amps at idle speed.
__________________
* AVOID: LOPER'S PERMORANCE / LOPERSPEED.COM OF PHOENIX, AZ & COTTMAN TRANSMISSION *
PHOENIX is offline   Reply With Quote
Old 11-08-2004, 01:46 PM   #13
82BlackBeast
Registered User
 
Join Date: Feb 2003
Location: Wichita Falls, Texas
Posts: 111
ok so you have a good battery and alternator, are you running maybe an underdrive pulley on the alternator? I only have probs at idle as well, I have almost the exact same setup and mine started when I swapped to an underdrive pulley.
__________________
Matt

'82 Chevy SWB
82BlackBeast is offline   Reply With Quote
Reply

Bookmarks


Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT -4. The time now is 09:49 AM.


Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2024, vBulletin Solutions Inc.
Copyright 1997-2022 67-72chevytrucks.com