very true
100 amp alternator recommendations ?
Pro
Joined: Jan 2000
Posts: 569
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From: SLC, UT USA
Team Owner
Joined: Jul 1999
Posts: 65,492
Likes: 230
From: Orange Park Florida
Originally Posted by GDaina
you can replace the guts with a 100 watt...the kits are chump change
but in fact the larger kissing cousin of the stock alt is a plug in, but has a bit larger diameter, same mounting....comes on late 70's caddy seville with rear window defogger, among others...same mechanically, easy swap, plug in and you got a 108 amp factory rated unit....
I cheated a bit, and bought one from AZ and later on returned the dud...the lower amp unit....dunno if in fact there was a differance in dud pricees or not....
works fine...carries electric cooling fans direct wired, and even a C4 a/c blower fan at idle with lights on...
GENE
Melting Slicks
Joined: Feb 2003
Posts: 3,053
Likes: 4
St. Jude Donor '03,'11
Originally Posted by GDaina
you can replace the guts with a 100 watt...the kits are chump change
since you bust my chops so much, i'll send some back.
you mean 100 amp. Watts = volts x amps
100 x 12v = 1200 watts.
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Burning Brakes
Joined: Nov 2004
Posts: 1,028
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From: San Antonio Texas
will the 100 amp alternators work o.k. with 30 year old stock wiring? i've heard some people have problems when they boost up the amps like that. maybe 60 to 100 is o.k. though. what do you think?
Race Director
Joined: Feb 1999
Posts: 16,978
Likes: 7
From: In Dreams There Is Truth Ohio
Originally Posted by turtlevette
G man,
since you bust my chops so much, i'll send some back.
you mean 100 amp. Watts = volts x amps
100 x 12v = 1200 watts.
since you bust my chops so much, i'll send some back.
you mean 100 amp. Watts = volts x amps
100 x 12v = 1200 watts.
When I got my 68 running, I had a severe case of brain deads...ran the dual spals and the electric pump, lights, radio through the stock 42 amp alternator...could not understand why the battery drained while driving..the I saw tha light, and being part NCRS, I did not want to sacrifice my original alternator...you know, numbers....anyway, I went to a local place that does alternators and regulators, explained the situation...guy said 30 bucks for the parts, 20 to install, so for 20 bucks, I let the guy install the guts..guaranteed it would be 105 amps...
Haven't had a problem since....
Last edited by GDaina; Jan 26, 2005 at 07:13 PM.
Race Director
Joined: Mar 2001
Posts: 11,322
Likes: 1
From: Living in the Hartland
Originally Posted by GDaina
One more thing...when changing to a larger capacity alternator, better jump the wires to the amp meter, else expect a meter melt down.
Drifting
Joined: Sep 2003
Posts: 1,325
Likes: 6
From: FRANKLIN GA
I'm running a 106 amp from a newer vette. 85 I think. Bolted right up. It's a little bit bigger but fit fine. All the wires and plugs are the same too. And the best part is it was $64 at advance
Race Director
Joined: Feb 1999
Posts: 16,978
Likes: 7
From: In Dreams There Is Truth Ohio
Originally Posted by Fevre
Can you elaborate? Have been running a 100amp alt in my 73 for 4 years with no problems yet with the ammeter.
Pro
Joined: Aug 2003
Posts: 677
Likes: 5
From: Cary North Carolina
10-SI upgrade kit
80 amp $29.95 + ($9+ s/h)
105 amp $39.95 + ($9+ s/h)
http://www.alternatorparts.com/gm_al...grade_kits.htm
They also sell them with kit already installed
80 amp $79.95 + ($14+ s/h)
105 amp $89.95 + ($14+ s/h)
140 amp $129.95 + ($14+ s/h)
http://www.alternatorparts.com/alternators_gm.htm
Here is a 135 amp for $74.99 + ($16 s/h)
http://cgi.ebay.com/ebaymotors/ws/eB...949358133&rd=1
80 amp $29.95 + ($9+ s/h)
105 amp $39.95 + ($9+ s/h)
http://www.alternatorparts.com/gm_al...grade_kits.htm
They also sell them with kit already installed
80 amp $79.95 + ($14+ s/h)
105 amp $89.95 + ($14+ s/h)
140 amp $129.95 + ($14+ s/h)
http://www.alternatorparts.com/alternators_gm.htm
Here is a 135 amp for $74.99 + ($16 s/h)
http://cgi.ebay.com/ebaymotors/ws/eB...949358133&rd=1
Racer
Joined: Sep 2004
Posts: 424
Likes: 2
Originally Posted by GDaina
The Amp meters are calibrated to the Alternator's capacity...larger output will overload the meter's circuitry...not good when that happens..
Instructor
Joined: Oct 2003
Posts: 175
Likes: 0
From: McKinney TX
These guys are in Dallas, TX (local to me) and they sell 135 amp alternators for pretty cheap. They built me a fully chrome 135 amp alternator for $85. All new parts and excellent quality chrome. They sell on eBay all the time. I dropped by their shop and they built mine for me in about 15 minutes.
http://www.4alterstart.com/
http://www.4alterstart.com/
Melting Slicks
Joined: Nov 2001
Posts: 2,668
Likes: 43
From: Eastern US XX
Originally Posted by Scudd
I need to replace my 60 amp alt. with a 100 amp. does anyone have any recommendations. Are the brands that Summit and Jegs carry any good?
Team Owner
Joined: Jul 1999
Posts: 65,492
Likes: 230
From: Orange Park Florida
Originally Posted by GDaina
The Amp meters are calibrated to the Alternator's capacity...larger output will overload the meter's circuitry...not good when that happens..
leave rest of wiring alone....
GENE