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I have a 1990 Audi Coupe Quattro 20 V. This has the naturally aspirated 2309cc engine (7A). I wanted to improve the brakes.
The brake conversion I had decided upon used 314mm Audi A8 disks and Porsche Monoblock callipers. The standard car has 4 stud hubs 4 x 108mm.I did not want to mess about converting disks etc. and so decided upon changing to 5 stud hubs. I found a set of S2 5 stud hubs and hub carriers these are 5 x ( edit 112MM). This is similar to what the Americans have done to make the replica S2. The S2 was never imported into North America/ Canada. These replicas are called E/S2’s. The conversions are described on several sites on the net.
The change to 5 stud hubs meant a change of wheel as well. I have always liked the early S2 wheels (5 spoke) but the bigger brakes will not fit in them. As I found a set of Audi 100/S4 wheels and tyres at a good price at a show I took the plunge and bought them. The wheels have been painted and the tyres re-fitted.
This is the first part of my conversion story: There will be more pictures to follow.
David.
Picture one: the front hub carrier and hub in a vice during stripping.
The brake conversion I had decided upon used 314mm Audi A8 disks and Porsche Monoblock callipers. The standard car has 4 stud hubs 4 x 108mm.I did not want to mess about converting disks etc. and so decided upon changing to 5 stud hubs. I found a set of S2 5 stud hubs and hub carriers these are 5 x ( edit 112MM). This is similar to what the Americans have done to make the replica S2. The S2 was never imported into North America/ Canada. These replicas are called E/S2’s. The conversions are described on several sites on the net.
The change to 5 stud hubs meant a change of wheel as well. I have always liked the early S2 wheels (5 spoke) but the bigger brakes will not fit in them. As I found a set of Audi 100/S4 wheels and tyres at a good price at a show I took the plunge and bought them. The wheels have been painted and the tyres re-fitted.
This is the first part of my conversion story: There will be more pictures to follow.
David.
Picture one: the front hub carrier and hub in a vice during stripping.
But here in the States the cost alone is ungodly! We have importers of these same parts but they charge a first born just for the hubs. Everything has to be sourced on your own. And right now the exchange rate between the pound sterling or even the Euro is not desirable! 
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