[Vwdiesel] Alternators --- ( so you need more amp's ??? )

[Val Christian]

My recollection is that the altenator on my 91 NA Jetta is 90 or 95 amps.
The replacement altenator (Autozone, life time warranty (which means 
four brushsets thus far)) came with a tag showing the actual test 
current.  120 amps at a moderate RPM.

The 90 amp altenator is run with a single "A" belt.  Tends to self-destruct
if tightened appropriately with a "aftermarket" belt.  With a VW or
Continental belt, tightened appropriately, it will slip under extreme 
loads (AC on, defogger on, lights on, just started engine).  Keying up
ham radio while rolling down the highway measurably slows the car down.

You could consider a load management plan.  HID lights in lieu of 
those road heaters you call lights.

Val


> 
> I am looking at over 100.  So far the biggest thing I can find is a 90.  And
> the price is nuts !  I have a spare out of my Mustang ( 65a I think ).
> That's why I was thinking of installing it.   Right now my Mustang has a
> 130A.  Great for the stereo.  The thing with the Jetta is, is that I just
> have a lot of stuff ( like a pair of 100W driving lights, and a WVO kit that
> has a very high amp draw electric heater ).  All that and the fact that I
> drive short trips now ( unemployed ) isn't very good for the battery.  I
> figured that if I could somehow get the thing to bolt where the AC
> compressor is supposed to go, The rest is just mickey mouse wiring and like
> Loren mentioned, gotta have enough surface area on the pulley !
> 
> 
> ----- Original Message -----
> From: "H.Hagar" <h_hagar at prcn.org>
> To: <vwdiesel at vwfans.com>
> Sent: Friday, January 30, 2004 10:48 AM
> Subject: [Vwdiesel] Alternators --- ( so you need more amp's ??? )
> 
> 
> 
> Weasel said :
> 
> Awww come folks !  are you ignoring this cause you think I'm nuts !?!?  You
> wouldn't be the first, nor the last :-)
> 
> I for one is not ignoring the issue weasel -- but I needed time to think.
> Having fiddled
> with generators and alternators by the hundreds --- and being a tinkerer I
> find it fascinating.
> 
> Some of us do run into situations where a lot of amp would be handy. Say you
> are James
> Hansen and you have a big rig stuck miles from anywhere. A hundred amps for
> charging main battery would be handy.--------Loren maybe trade the deepfryer
> for a micro.
> 
> OK weasel now that you know that we take you serious  --  how many amps do
> you need ???
> 
> One big alternator is simpler than two small ones --   but two 65 Amp on a
> Rabbit ?
> why not , if you like tinkering.  The first time I saw the Rabbit setup ---I
> said belt is
> too small. (Too small for 65 Amps steady)  VW did not do a good job in that
> department.
> drive through a puddle at night and watch the warning light.
> 
> They could have used a gear belt.
> 
> I have a Motorola on a Landrover that puts out a solid 60 Amps at idle.All
> you
> have to do is install a toggleswich to give the alternator full field.The
> model was designed for Taxis and police cars.(lots of idle).(lots of radio)
> 
> Let us know what you are trying to do please.      have fun        Hagar.
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