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Upping ZL Alternators 

 

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 Post subject: Upping ZL Alternators
Posted: Tue Sep 13, 2005 9:06 pm 
Tyre Shredder
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hey all,
as im sure its becoming apparent, i have a ZL that im doing up

She currently has the standard 70Amp alternator on it, and i wanna upgrade it - coz when i turnt he indicators on (headlights on & on the brakes) the battery light glows a lil in time with the flashing. (it has a new battery on it :D

newayz, i can get a hold of a 100Amp alternator thru a mechanic i know, my question is, will the standard wiring be able to handle that much current? or will it be likely to melt / burn out?

(iv got plans for a big stezza eventually, jst wanna make sure that it will be able to power it kinda thing - and the current alt is on the way out atm...)

thanks in advance :)

 

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Posted: Tue Sep 13, 2005 10:06 pm 
Getting Side Ways
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i got a 120amp alt in my XD plenty of power it's a multi fit one just had to put washers in to make it line up with belt works great i needed the power as my batery is in the boot

 

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Posted: Tue Sep 13, 2005 10:16 pm 
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the wiring should handle the current no dramas,
just make sure u check the condition of teh wiring to and from the alt.. if it looks s**t replace it!
be good if the new alt comes with a internal regulator as well, and if poss get a 120+ amp alt if a big stez is on the cards a bigger alt will not be bad for the car.

aslo add an extra earthing wire from the engine to the body and from the body to the battery.

 

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Posted: Tue Sep 13, 2005 10:16 pm 
Tyre Shredder
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ah ok kool - geez: 120amps is a fair kick!

im eventually gunna move the battery in the ZL to the boot too

thanks for the reply :)

 

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Posted: Tue Sep 13, 2005 10:23 pm 
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Posted: Tue Sep 13, 2005 10:28 pm 
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the standard wiring will be fine

the stock alternator should be 55-60A, and they can be rewound to ~80A IIRC

 

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Posted: Tue Sep 13, 2005 10:34 pm 
Tyre Shredder
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im sure i read somewhere that the standard efi alternator on these is 70amps and that the carby alternators are around the 55 / 60 amps... *gets gregories out to check it out* - il have to double check that now

so the current alt can be re-wound? i wanted to look into that when i had a ZK in perth, but i was told that to get more Amps outa it, id need a bigger alt - as int he whole body - the whole unit...

 

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Posted: Tue Sep 13, 2005 11:30 pm 
Getting Side Ways
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IIRC some of the earlier alternators had a smaller casing, but the later XF's with the 60A alt had the large case..... tho i've got a 50A alt from an XE here that's physically identical to the one on my XF (apart from the mounting holes being threaded or plain on the different alts)

 

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Posted: Wed Sep 14, 2005 7:42 pm 
Tyre Shredder
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i jst looked it up in the Gregory's book, and yes you are correct

Nominal Output:
non-aircond models: 40Amps
Aircond models: 50Amps
EFI models: 60Amps

Dunno where i pulled 80Amps from...

:) My appologies :)

 

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Posted: Thu Sep 15, 2005 8:27 pm 
Oompa Loompa
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u-k1(r)14v40a22 - no air
u-k1(r)14v50a22 - air
u-k1(r)14v60a22 - efi

These part numbers are usually stamped on the top of the alternator

Another way of telling is the width of the stator. Less amps...


PS: You probably have an earth problem rather than an alternator problem..
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