S3 V12 Frount mount Alternator upgrade.

Talk about the E-Type Series 3

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sprog
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Joined: Fri Nov 01, 2013 6:21 am
Location: Sydney, Australia

#1 S3 V12 Frount mount Alternator upgrade.

Post by sprog » Wed Dec 04, 2013 5:57 am

Hi Guys,
I want to replace the alternator with a modern type. preferably one I can just go and order from repco.
I have seen a few kits for mounting it next to the engine, but I have an A/C pump there.
Does anyone know of a kit available? or have you done one DIY? What alternator did you use?


Thought I would ask around before I spent several hours going through the bosch catalogue to find something that would work.

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D COUPE
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#2 Altenator

Post by D COUPE » Fri Dec 06, 2013 4:09 pm

I also considered a modern alternator and its mounting position.

After talking to a few knowledgeable folk I retained the original Butec. Its big enough power wise. it is certainly well made. I think mine was the original one from new so. if you fit a new modern regulator box
I can not see a reason to change to a modern one............

DC
ITS NOT WHAT YOU DRIVE ITS HOW GOOD YOU LOOK IN IT

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sprog
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#3

Post by sprog » Sat Dec 14, 2013 5:26 am

Replaced the alt with one from a 75-80 series Land cruiser. (110A) Gotta love Toyota stuff. (a 3UZ or 1GZ in an e-type would be awesome.)
Works perfectly, after some rewiring and bracket spacers etc.
Can post pics, if anyone is interested.

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jagwit
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#4 Re: S3 V12 Frount mount Alternator upgrade.

Post by jagwit » Tue Nov 15, 2016 8:12 pm

I'm keen to upgrade the 50A Butec alternator on my car to at least a 90A unit. When the headlights, fans and aircon all are on simultaneously, the alternator just does not cope.

I would appreciate it someone could provide the make and model no of an alternator that would easily replace the Butec without too much mechanical mods.
Best Regards
Philip
Jag: 72 E-type V12, 80 XJS (Megasquirt + 5sp manual O/D)
Jensen: 74 Interceptor (EFI by Megasquirt + O/D 4sp auto)
Chev: 59 Apache std, 70 C10 (350V8, 700R4)

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MarekH
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#5 Re: S3 V12 Frount mount Alternator upgrade.

Post by MarekH » Tue Nov 15, 2016 10:56 pm

Dear Philip,

I fitted one from an XJS in the smog pump position. I did make a custom bracket for it out of 6mm thick angle iron, but you may find it'll fit some other way given your belt configuration will be different.

I expect someone local might be able to rewire yours for a higher output or perhaps think about looking into replacing as many bulbs as you can with LEDs.

kind regards
Marek

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V12 Epyte
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#6 Re: S3 V12 Frount mount Alternator upgrade.

Post by V12 Epyte » Wed Nov 16, 2016 12:23 am

Fosseway have made one which replaces the Butec Alternator and Butec Regulator

http://www.fossewayperformance.co.uk/e- ... nator-kit/
1971 Series 3 FHC 2+2 RHD Manual
1971 Series 3 Roadster 2+2 RHD Manual
1986 Rover SD1 Vitesse Twin Plenum

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Whitact
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#7 Re: S3 V12 Frount mount Alternator upgrade.

Post by Whitact » Wed Nov 16, 2016 8:56 am

I recently fitted one of these:
http://www.scparts.co.uk/sc_en/british- ... 01987.html.
Went straight in on the original brackets with minimal wiring mods.
Cheers
Adrian Turner
S3 OTS & FHC
S1 FHC
XK140 FHC

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jagwit
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#8 Re: S3 V12 Frount mount Alternator upgrade.

Post by jagwit » Wed Nov 16, 2016 6:18 pm

Importing one of these off-the-shelf kits is not an option for me as by the time I have it in my hands, the price has doubled.

It turns out I have 7 alternators lying around in my cupboards. I will MAKE one of these work and will post on my project once I have something worth sharing.
Best Regards
Philip
Jag: 72 E-type V12, 80 XJS (Megasquirt + 5sp manual O/D)
Jensen: 74 Interceptor (EFI by Megasquirt + O/D 4sp auto)
Chev: 59 Apache std, 70 C10 (350V8, 700R4)

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