< What I do not like about my alt is the pulley ratio. Because they
are self exciting they do not turn on until you hit a certain RPM. On my
car its like 2500 rpm. So all the time I am sitting in traffic or creeping
around the around the city my batt is discharging >
Not really it should keep charging at lower rpm once you energize the fields
in the alternator, when you first start the car you need to rev up to get it
to start charging but then it should continue charging after it returns to
idle.
Mike Kerr
Roadster Restoration
3730 Todrob LN.
Placerville CA. 95667
Ph.# 530-644-6777
Fax# 530-644-7252
E-mail: mikekerr@innercite.com
Web page : http://www.innercite.com/~wolfgang
Visa & master card
-----Original Message-----
From: dneuman@stars.sfsu.edu <dneuman@stars.sfsu.edu>
To: Mark Dent <stickerman@home.com>
Cc: datsun-roadsters@autox.team.net <datsun-roadsters@autox.team.net>
Date: Sunday, February 21, 1999 8:32 PM
Subject: Re: Alt. Conversion
>Hi Mark,
> I am not sure which model is used but Mike Kerr sells them. I think
that
>they are ~75 bucks. Mine puts out 100 amps!!! This is much more than the
>stock ~35 amp alt. I have also seen alt. at Kragen and Grand that look to
>be the same. Its sold as a 'nascarr' brand I believe. The alt. are the
>more modern self exciting-self regulating one wire type. I believe that
>mine puts out a better regulated voltage under loads. The alt is regulated
>to put out ~14.5 volts with different amounts of current, whatever is
>needed by your 100 watt driving lights or your big stereo or whatever.
> What I do not like about my alt is the pulley ratio. Because they
>are self exciting they do not turn on untill you hit a certain RPM. On my
>car its like 2500 rpm. So all the time I am sitting in traffic or creeping
>around the
>city my batt is discharging. If I could get a different size pully
>(smaller) for the alt I would like to. Have it turn on at say 1800 rpm, but
>then maybe it would spin itself to bits at 5000rpm?? Who knows.
> Wiring is easy, it just depends on if you want your amp gauge to
work.
>Most simple way is to just hook the one wire to the + terminal on the batt.
>Make sure you wire all your high power stuff straight to the batt. This
>way there will be no high super high currents going through the wiring
>harness.
> Mounting the thing. I do not think that the GM alt. will fit in
>the stock location on smog cars. Its best to mount it in the nonsmog
>position on the
>passenger side. I did not have a right side alt. mount so I faked it. I
>drilled
>out the smog pump mounts to take a very beefy 3/8" bolt. To make the new
>alt match the pully you need to space it out. Use one 3/8" big hex nut and
>two or three washers. For the top adjustable mount I used the stock unit
>from the nissian alt. It works fine with no spacers needed. THis setup
>works well and it does not look kludgey at all. You can not see the stack
>of washers cause the alt hides them.
> You will need to get a new fan belt. The stock unit is to small/big
>sorry
>I dont remember which.
>
> Hope this helps.
> Daniel 69 2000
>
>>All,
>>
>>I know this has been covered before but I need to change from the stock
>>Alternator. What GM is used? How is it wired?
>>
>>Thanks
>>--
>>
>>Mark
>>Baltimore
>>http://members.home.com/stickerman
>>1968 1600
>
>
>
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