B4 discs on a B3?

sciteacher · 21-12-16, 11:18 PM

Being the prize twit that I am, I've just spotted the fact that the mintex discs I bought are B4 size (larger diameter). Has anyone used these bigger discs on a B3? Are there any mods that are needed to do so that I can use these bigger discs, or do I shell out for the proper size and hope that the wife doesn't notice......

mikes2 · 21-12-16, 11:47 PM

There are different sizes used on both B3 and also on B4 - usually dependent on engine size but also chassis number dependent.

There's also the problem that B4 cars used different hubs so the offsets changed.

The B4 discs you have - are they 280mm ?

sciteacher · 22-12-16, 03:14 PM

280mm indeed. The 'hole in the middle' is fine and they are vented.

sciteacher · 22-12-16, 03:24 PM

Oh and its a 2.0E 8v, if that helps.

mikes2 · 22-12-16, 03:53 PM

They'll not work unless you can source a set of carriers from a B4.

There's a 10mm difference in height on the B4 discs

sciteacher · 23-12-16, 07:57 PM

Thanks Mike. So an interesting dilemna; if i obtain new carriers, I will be stuck with using B4 discs but B3 bits are getting a bit harder to come by. I'll ponder until after Christmas.

Have a cool Yule.

21-12-16, 11:47 PM	#2
mikes2 4 ring whore! Classic Audi Club Member Join Date: Nov 2007 Location: Polmont Posts: 2,617	There are different sizes used on both B3 and also on B4 - usually dependent on engine size but also chassis number dependent. There's also the problem that B4 cars used different hubs so the offsets changed. The B4 discs you have - are they 280mm ? __________________ 1991 90 quattro 20v sport 1991 90 quattro

22-12-16, 03:53 PM	#5
mikes2 4 ring whore! Classic Audi Club Member Join Date: Nov 2007 Location: Polmont Posts: 2,617	They'll not work unless you can source a set of carriers from a B4. There's a 10mm difference in height on the B4 discs __________________ 1991 90 quattro 20v sport 1991 90 quattro

22-12-16, 03:14 PM	#3
sciteacher Grown up member Classic Audi Club Member Join Date: Jan 2015 Posts: 79	280mm indeed. The 'hole in the middle' is fine and they are vented.

22-12-16, 03:24 PM	#4
sciteacher Grown up member Classic Audi Club Member Join Date: Jan 2015 Posts: 79	Oh and its a 2.0E 8v, if that helps.

23-12-16, 07:57 PM	#6
sciteacher Grown up member Classic Audi Club Member Join Date: Jan 2015 Posts: 79	Thanks Mike. So an interesting dilemna; if i obtain new carriers, I will be stuck with using B4 discs but B3 bits are getting a bit harder to come by. I'll ponder until after Christmas. Have a cool Yule.