porsche alternator choices

[SPEEDY57TUB]

The more juice the better. Word of caution: The early 11 or 5 blade setups have variations such as internal vs. external regulators and there are three different mounting depths and therefore three different shroud-ring depths. There are even two different fan diameters too, although one of them is very rare compared to the other. Also, there are two different pulley diameters. These variations are not including the very different 12 blade configuration.

I currently have some of the different parts for the different early setups. I recommend you get a setup that includes the matching components or do a little bit of research to get what you ant from different sources. Oh yeah, to throw in another wrench into the gears :takethat: , there are some ring-shrouds that were machined by Porsche to fit a deeper and higher amp alternator in order to phase out the inventor. Unfortunately, the part was kept until the new casted parts were procured. You can always machine down the mounting surface by about 9-mm (the difference between the two). I have my local machine shop do this once in a while for me. Good luck. Email me if you need some help.