Re: Caliper from audi 90 to A4

[Elliott Potter <epotter@abraxis.com>]

Chris Newbold wrote:
> 
> Elliott Potter wrote:
> >
> > The 90 has a two piston caliper in front and a one piston caliper in
> > back--I thought the A4 has the same setup?  Does the A4 not use the
> > Girling G60 calipers?
> 
> No, it doesn't. I think the rear calipers are the same, but the fronts
> were "from" the 1992-96 100/A6: single-piston.

Really?!  That's odd...It seems that the dual-piston setup would work
better (but don't correct me if I'm wrong...I don't want to see this
thread again).
Personally I think that the G60's are much heavier than they need to be
and also the pads could probably stick out about 3/4" from each side
without hurting too much...oh well.  They stop the car just fine,
thanks.
 
> > If they are in fact different, I don't think that it should be too hard
> > to do, since they appear to be the same size in both cars.  One thing to
> 
> Not clear. The A4 calipers appear to have a greater swept area than
> the G60s (larger diameter rotors).
 
How much larger?  Anyone have this data?

> > check would be how many brake lines the A4 has--the 90 has TWO lines to
> > each caliper, front and back.
> 
> I don't think so. There's a single line to each caliper. You may be
> thinking of the rubber hose sections, though: there are two rubber
> hoses in each of the single lines to each caliper...
 
I'm pretty sure that the rears have two hoses heading to them, but after
some thought I think the fronts do have one hose that goes to the
caliper.

> -Chris
> 1993 90CS 70k miles

--
Elliott
1993 90CS 63k miles, new ball joints, new front upper strut mounts, new
front sway bar links, new oil pan, new spark plugs, new cat, new Mobil
1, new brake fluid (some squirted around engine compartment), still
starts hard...dammit!