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As heading suggests this high powered alternator was necessary as I have now really exceeded the limits of the standard 55Amp . Due to a severe arm injury (in workshop) I have had to fit power steering on the track car which has 225s upfront and heavy castor so steering is a bitch if you got one and a half arms
I’m using the 75 power steering rack with a Citroen C4 pump that sits in the boot. This electric pump in the Citroen has already a 70amp fuse !! . I am running two fuel pumps, one been a feeder for swirl pot , heated screens and the usual !
Mate of mine Stavros suggested this alternator and after a few test fit I need to modify my original bracket by 21mm to bring the belts into alignment on my 164 24v based motor .
A new larger alternator cable was needed .
This unit is lighter than the original with built in cooling fans .
I am currently laser cutting the adjusting bracket . Some pics to follow.

I switched to an E500 W124 Merc Alternator. With the Vauxhall PS pump, fan on, it still has 13.8v at idle. I modified the bracket as you did. What about the exciter circuit? Did you just connect it to the alt lamp warning and alt starts charging immediately after starting?

I went for Abarth one as lighter . Yes the green wire to original circuit as it’s an exciter for the resistance of the bulb to trigger .