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#1 |
Registered User
Join Date: Oct 2002
Location: Phoenix, Arizona
Posts: 4,703
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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.
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#2 | |
Overworked and Underlaid
Join Date: May 2002
Location: Flagstaff,Arizona
Posts: 1,279
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Quote:
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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 |
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#3 |
Registered User
Join Date: Oct 2002
Location: Edmond, OK
Posts: 5,906
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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.
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#4 |
Senior Member
Join Date: Mar 2003
Posts: 2,500
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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. |
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#5 |
Registered User
Join Date: Sep 2003
Location: Lewisville, NC
Posts: 1,836
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I'd put one big alternator on it and run two batteries with an isolator.
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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. |
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#6 |
Registered User
Join Date: Oct 2002
Location: NJ
Posts: 404
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you can actually get an isolator at any marine supply store
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so many trucks so little time!!! |
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#7 |
Professional Grade
Join Date: May 2003
Location: Fort McMurray, Alberta
Posts: 7,915
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I would also suggest running the dual battery setup too, and just get one big alternator instead of two smaller ones.
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1995 Chevrolet 2 Door Tahoe (6.6L LBZ Duramax / ZF6 / NP241 with 1 ton solid axle swap) |
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#8 |
Registered User
Join Date: Feb 2003
Location: Wichita Falls, Texas
Posts: 111
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what type of battery are you running and what size alternator?
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Matt '82 Chevy SWB |
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#9 |
driving is in my blood
Join Date: Dec 1999
Location: Mesa AZ
Posts: 5,720
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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.
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-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. |
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#10 |
Registered User
Join Date: Aug 2002
Location: Crittenden, KY
Posts: 1,965
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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 |
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#11 |
Who's in CHARGE??????????
Join Date: Nov 2002
Location: Cahokia, IL
Posts: 455
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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
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#12 |
Registered User
Join Date: Oct 2002
Location: Phoenix, Arizona
Posts: 4,703
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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.
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#13 |
Registered User
Join Date: Feb 2003
Location: Wichita Falls, Texas
Posts: 111
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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.
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Matt '82 Chevy SWB |
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