Lanner, thanks for your comments, I like logic and what you say is just that and i agree with it all. I am just weighing up my options :-
1. revert to stock type 3 calipers
2. 944 24mm dia. m/c upgrade
3. all new disc setup up front (brembo with vented disc?)
I am running a 5x112mm PCD so Porsche is not an option at the moment maybe in the future.
i) another reason for using the audi calipers, i was told by a guy on VZi (uk forum) that they were direct fit to LATE T3 hubs (bigger bolt spacing) and this was so was keen to exploit this advantage. (NOTE - IT SEEMS ALOT OF VW's OF THE SAME ERA USE SIMILAR CALIPERS WITH SAME BOLT SPACING).
ii) the pad surface areas of the audi calipers must nearly double of a stock type 3.
I chose this m/c also as if it worked for the audi, thought it would work for me.
I was trying to achieve my own brake setup - not as full-on as a porsche set up, more of an engineering achievement on my part.
But as you say, we are all here to learn.
below some pics for info, least i can to as you all share your knowledge
will keep you posted on what i decide (soon) - looking at taking the 944 mc option.
cheers, Angelo
type 3 m/c(old) audi m/c (new)
front audi coupe caliper
inside view of rear caliper (during build up)