Alternator Capacity - adding heated seats - LS1TECH - Camaro and Firebird Forum Discussion

Conversions & Hybrids LSX Engines in Non-LSX Vehicles
Sponsored by:
Sponsored by:

Alternator Capacity - adding heated seats

Thread Tools Search this Thread
Old 04-25-2012, 03:59 PM   #1
Staging Lane
Thread Starter
iTrader: (2)
Join Date: May 2007
Location: Minnetonka, MN
Posts: 65
Default Alternator Capacity - adding heated seats

In my '68 cutlass LS1/4L60 Iím adding heated seats. I'm wondering if the alternator will keep up. I'm guessing it will, but here are the details. I'd appreciate input with more knowledge than I.

2002 pull-out from a WS6. I believe itís a 105 Amp alternator. Does that sound right? Its stock.

Current electric consumption: Headlights, Cooling fans, 225 fuel pump & heater fan. Thatís the extent that consumes much.

I'm adding 5 heated seats. Both front seats & three spots in back. Each can consume 5 amps on high. That totals new 25 amp draw.

I 'spose I could turn this stuff on and use an amp meter to find the loads but the electrical system is currently partially apart.

Eric Anderson is offline   Reply With Quote
Old 04-26-2012, 05:29 AM   #2
TECH Junkie
iTrader: (1)
Pop N Wood's Avatar
Join Date: May 2006
Posts: 3,183

Fuel injection and O2 heaters have some surprisingly large fuses on them, definitely will draw more amps than the head lights.

I would be tempted to just hook everything up see what happens to the voltage at the dash when everything is on (cold engine, heater, lights, all seats, stereo at full volume etc.) If you can't maintain close to 14 volts at the fuse box then just upgrade to a larger alternator then. The higher capacity alternators are the same physical size so shouldn't be tough to leave the fuse out of the seat heater circuit until you get a bigger one. I think you can even get upgrade kits that allow rebuilding the current alternator to more amps.
Pop N Wood is offline   Reply With Quote

Related Topics
Thread Thread Starter Forum Replies Last Post
CHEAP CUSTOM 200amp ALTERNATOR for 4th GEN F-Body or C5 CORVETTE AsianIce25 Parts Classifieds 0 07-30-2013 03:35 AM
Rear defrost defogger relay - DO NOT USE FUSE - Explanation Cheshire General Maintenance & Repairs 8 01-12-2012 12:41 PM
F--- this car. Still running hot. TS6 Forced Induction 44 05-06-2007 12:41 PM
How much of a draw can you take from a stock LS1 alternator? Martingale Stereo & Electronics 20 04-15-2005 08:19 PM

alternator, capacity, grade, heated, heaters, high, larger, ls1, ls3, require, seat, seats

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 -5. The time now is 01:12 PM.

  • Ask a Question
    Get answers from community experts
Question Title:
Your question will be posted in: