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RE: gm altenators...and efi



considering the life time warrenty.... and i've had good exp...with
em....most falures are due to bad bat..they no like em too much

-----Original Message-----
From: owner-gmecm@diy-efi.org [mailto:owner-gmecm@diy-efi.org]On Behalf
Of Bruce Plecan
Sent: Wednesday, June 21, 2000 4:40 PM
To: gmecm@diy-efi.org
Subject: Re: gm altenators...and efi


Trouble is the're prone to failure, and are a PITA for DIY repairs.
Grumpy


----- Original Message -----
From: "Mike Rolica" <mrolica@meridian-mag.com>
To: <gmecm@diy-efi.org>
Sent: Wednesday, June 21, 2000 4:00 PM
Subject: RE: gm altenators...and efi


> .. rather use this new style.. uses 2 less hp, uses oem brackets..
> is the same as 86 and up altenators..
> ie your gn.
> Mike Rolica
> Plant A,
> Magnesium Products Division
> Strathroy
>
> (519)-245-4040  Ext. 265
>
>
> -----Original Message-----
> From: Bruce Plecan [SMTP:nacelp@bright.net]
> Sent: Wednesday, June 21, 2000 3:42 PM
> To: gmecm@diy-efi.org
> Subject: Re: gm altenators...and efi
>
> I *think* yours is similiar to the one I had in my 84 F-body, I took
> it to a
> good local altern shop and they changed the guts of it, and walked
> out with
> a 108 for like $40US, or about $2,400 Can..
>
> > Well on my way home last night I notice my signl lights were slow
> to
> flash..
> > then glancing over at the factory volt gauge, it was at 8..
> > I used the original 3 wire 56amp alternator from the v6 in my
> s10..
> > They list 108 amp for the 87 camaro that the tpi was out of....
> > I thought since I did add a lot of extra load ie the 30amps the
> elec fand
> > draw, the efi (injectors, ecm, fuel pump) (truck was carbed
> before) I
> should
> > use the original altenator.. this way I could use the oem bracket
> and
> belts
> > instead of my jigger rig bracket..
>
>
> > now for the efi.... As the voltage got lower.. it started running
> fatter
> and
> > fatter, till it started missing ( have msd and good coil) I think
> this is
> > due to the bat voltage vs injector offset..... also idle whent up
> 300rpm....
> > Is there something in the code to kick idle up if voltage drops
> below a
> > value???....
>
> Dunno about that, but at 8v the ecm might have had trouble with the
> 5v ref,
> or being able to filter things depending on what took a dump in the
> alternator.  Open or shorted diodes can fubar lots of stuff
> Grumpy
>   Welcome back!
>
>
> >
> > Anywho...though it was cool..
> > Mike Rolica
> > Plant A,
> > Magnesium Products Division
> > Strathroy
> >
> > (519)-245-4040  Ext. 265
> >
> >
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