I must appologize to Thomas Jakits.....I was going to send him the links I had on the EWP's, but it appears I failed to save them on my computer (or I just can't locate them).  Thomas....I know you are interested in the Mustang, so I did a quick Google search and came up with these interesting sites.  Also, I noted a recent post that the BMW is going to supply one of their models with an EWP. Anyway, here are the sites.... www.fordmuscle.com/archives/2000/08/electricwaterpump/index2.shtml   also
http://www.mawsolutions.com/documents.ewpinfo.PDF
If you want more info, a Google search for EWP installations, and EWP install should take you to more sites.   Hope this helps.  Paul Conner