HO alternator - Page 2 - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


Audio (and aftermarket electronics) This is your place for alarms, remote starters, to brag about your system, exaggerate your db levels, or simply ask questions for stock or aftermarket audio. No Flames! (except from roasted amps)

Reply
 
 
 
Thread Tools Search this Thread
Old 08-14-2010, 01:05 AM   #11
Administratus Emeritus
Certified Car Nut
 
GXP Venom's Avatar
 
Join Date: Jan 2006
Location: Purgatory, Pennsylvania
Posts: 16,538
Thanked 7 Times in 4 Posts
GXP Venom is on a distinguished road
Default

Big 3 or 5, more battery(ies) is the answer. Amp draw can only be made constant, so you don't have voltage variations, if you have it available full time. An HO alternator only gives you more amps at higher RPM'*. At an idle, or cruising it doesn't make a big enough difference for the equipment you are powering. Although any of what is suggested can make a difference, to get the max benefit and best performance takes enough amperage through all scenarios takes storage capacity.
GXP Venom is offline   Reply With Quote
Old 08-14-2010, 01:12 AM   #12
Senior Member
Posts like a Northstar
 
RobertISaar's Avatar
 
Join Date: Jul 2010
Location: Camden, MI
Posts: 615
Thanks: 0
Thanked 0 Times in 0 Posts
RobertISaar is on a distinguished road
Default

smaller alt pulley for more amps at lower RPMs?

and paint is generally non-conductive...
RobertISaar is offline   Reply With Quote
Old 08-14-2010, 01:20 AM   #13
Administratus Emeritus
Certified Car Nut
 
GXP Venom's Avatar
 
Join Date: Jan 2006
Location: Purgatory, Pennsylvania
Posts: 16,538
Thanked 7 Times in 4 Posts
GXP Venom is on a distinguished road
Default

GM rely'* on the threaded hole to be enough ground, it isn't when you starrt powering things like a 2000 watt amp, or my dual Viair compressors that powered my air ride. Under pulleying the alternator tends to burn them out as they spin faster than designed for. You have the HO altenator, Put an extra quality high amp battery in that has only connections to the alternator and your sound system and be done with it.
GXP Venom is offline   Reply With Quote
Old 08-14-2010, 02:31 AM   #14
Senior Member
True Car Nut
 
xtremerevolution's Avatar
 
Join Date: Jun 2007
Location: New Lenox, IL
Posts: 2,478
Thanks: 0
Thanked 0 Times in 0 Posts
xtremerevolution is on a distinguished road
Default

Yeah you're going to have to sand down the surface you grounded to get a better ground.
xtremerevolution is offline   Reply With Quote
Old 08-14-2010, 07:47 AM   #15
Senior Member
Posts like a Turbo
Thread Starter
 
Join Date: Jan 2008
Location: rockford, illinois
Posts: 281
Thanks: 0
Thanked 0 Times in 0 Posts
bonny99 is on a distinguished road
Default

The alternator im planning on getting does 200 amps at 1500 rpm and 55-60% of that at idle.
bonny99 is offline   Reply With Quote
 
 
Reply

Related Topics
Thread Thread Starter Forum Replies Last Post
Whiney alternator - update - probably not the alternator vital49 2000-2005 11 02-05-2008 10:52 PM
Alternator problems! csprague 1992-1999 8 09-07-2004 12:51 AM
water pump and alternator pulleys? 95naSTA Performance, Brainstorming & Tuning 12 03-20-2003 11:51 PM
Another Alternator is shot. seanlight 1992-1999 8 03-07-2003 04:23 AM
Alternator Question. Scavanger 1992-1999 7 03-04-2003 06:45 PM


Thread Tools Search this Thread
Search this Thread:

Advanced Search

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
Trackbacks are Off
Pingbacks are Off
Refbacks are Off



All times are GMT -4. The time now is 09:36 AM.


We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.