Taper pad wear with Girling calipers

[TobyB]

so the last set of front DTC 60's had terrrible taper wear- way worse than the
previous 2 sets of Hawk Blues did.

Other than changing the guide pins, is there anything else I could do to
the calipers and carriers to get taper wear down? I hate having to rotate
pads, but I hate even worse to have to throw half a set of pads away...


In measuring the spare carriers, I discovered that one pin is a
significantly tighter fit than the other- apparently by design. The pins
are a bit (.05mm) shy of 8.5mm, and one guide hole is 8.50 mm.
The other is 8.7mm. This is consistent across 4 carriers. Near as
I could guess, it's to reduce binding. I'm almost tempted to sleeve a set
to 8.50mm on both, and see if it works.

Because race car.... and yes, it WOULD be cheating, of course.

t

[kronus]

You can switch out the rubber guide bushings for brass ones, according to people. I have a set like that, but the one time we ran them on track we had a lot of front brake locking issues.. I fear they may cause the thing to bind.

[TobyB]

The Girlings are very different than the ATE's that have rubber bushings-

the Girling runs an 8.5mm pin inside the casting of the carrier, and just
uses a wad of grease to prevent wear.

I wonder if opening up the clearance on ONE ATE brass bushing
(to make it like the Girlings) would reduce binding- I've heard stories
from those running the brass bushings that they've had binding
problems too...

t

[kronus]

Yeah, I am talking about girlings. I have a set of girlings with brass bushings. I'll snap a pic next week.

[TobyB]

Oh, wacko- yes, please, a bushing pic might explain what I'm missing.

Thanks!

t

[Ocell]

I've never seen a brass bushing setup for Girlings. I'm curious to see what the setup is.

[ForcedFirebird]

I've never seen a brass bushing setup for Girlings. I'm curious to see what the setup is.

Same here.

[FLG]

What they said...^

[Roland H]

You can switch out the rubber guide bushings for brass ones, according to people. I have a set like that, but the one time we ran them on track we had a lot of front brake locking issues.. I fear they may cause the thing to bind.

weird. Used to run brass bushings front and rear and never had locking issues. Made sure to lube em up every time I had a wheel off the car and sometimes just for fun though.


of course I ran them on the vastly superiour E36 M3 and not an E30.

[bmnut2002]

Toby,

I have rebuilt ATE calipers in stock. I'd suggest changing over.

[TobyB]

Why, Kevin?

What advantage do the ATEs have over the Girling design?

t

[bmnut2002]

Toby,

Less caliper flex and more even pad wear.

[TobyB]

Well, I'll admit that the Girlings are pretty bad for taper wear...

...smaller pins might account for a lot of that, huh?

t

[lcoleman]

I upgraded to Ate calipers with the brass guides, and improvements have been modest at best. I'd say it's worth a shot, though. Just go to RX7 or Willwood stuff unless you're running SpecE30.

[TobyB]

Pro3.

t