[s-cars] G60 Confusion !! (small typo correction)

[Keith Maddock]

Theodore Chen wrote:
>--- Keith Maddock <Keith.Maddock at TRW.COM> wrote:
> > B) G60's do NOT have dual 45mm pistons - I doubt any sliding 2-piston
> or any
> > fixed 4-pistons have the same size leading and trailing pistons.
>
>various PBR twin-piston calipers, such as those used on the corvette and
>mustang.  i use corvette calipers on my mustang.  they're twin 38mm pistons.
>these calipers are aluminum and quite light.  they're also good enough
>for showroom stock corvettes, mustangs, and camaros/firebirds.
>
>these calipers do not use the standard floating caliper design.  rather,
>they use PBR's patented pad-guided caliper design, in which the pads are
>anchored to the bracket, and the caliper attaches to the pads.  the caliper
>has no other connection to the mounting bracket.  works pretty well.

Interesting info, thanks for the correction, I'll eat a bit of my shoe :-D

>according to the BIRA archives (we had a big discussion about G60 versus
>brembo calipers a few years ago), the G60 pistons are 44mm and 41mm.

I just heard from my conatct in MI, that they were 40/45, regardless both
result in a equivalent 60mm single piston size.

Interestingly, he also mentioned that the "Twin 43 HP Caliper" that went on the Euro S6 and some A8's and I think S4tt's has dual 43mm pistons - again the quivalent is a single 60mm piston.

> > D) When comparing fixed piston calipers (Brembo/Porsche) to sliding piston
> > calipers, multiply the number of pistons in the sliding caliper  by 2
>
>this implicitly assumes that the pistons in the sliding caliper are on
>the same side.

Is there such a thing as a sliding caliper with pistons on opposite sides?

Cheers,
Keith

Keith Maddock, TRW Automotive,  Koblenz, Germany
Slip Control Systems, Systems Design, Traction Control
+49 (0)261/ 895 2474    -   -   keith.maddock at trw.com