[s-cars] Brake Question

[Lewis, Gary M]

Big Reds are ~$260 each at Sunset Porsche in Oregon, but only if you are out of state.

Gary Lewis

1995.5 S6 Avant, Green/Ecru, RS2 MAF, RS2 Exhaust Manifold, RS2 Injectors, Custom Turbo (K26 Turbine, Factory K26 Cold side (Audi Works '999' P/N) with 50mm intake and custom Innovative Turbo compressor wheel), TurboXS Type 25 Bypass Valve, Bilsteins, Eibachs, Big Reds, Spec II Clutch.

> -----Original Message-----
> From: Keith Maddock [mailto:keith-list at maddock.uzipp.com] 
> Sent: Saturday, December 20, 2003 9:09 AM
> To: s-car-list at audifans.com
> Subject: Re: [s-cars] Brake Question
> 
> 
> Riff wrote:
> >Hi List-
> >
> >Wondering about a brake fitment question.  Has anyone fit the regular
> >Porsche S2/Turbo brakes to their car, not the ones from the 
> 944 turbo S / 
> >928 S4?  I know they are essentially the same size as the 
> standard Boxster 
> >caliper and those have been fitted using the A8 rotor.  This 
> is crossing 
> >my mind because if I can waterfall the fronts off of my S2  
> to the S6, 
> >makes buying the new larger fronts for the 944 more 
> palatable.  Ideas???
> 
> Riff,
> 
> First a bit of a "glossary" on Porsche calipers:
> Little Blacks :  944S2 (non M030), 951 (non M030 and not 
> 951S), 968 (non M030) Medium Blacks: 944S2 (M030), 951 (S or 
> M030), 968 M030, 928 S4 Big Blacks/Reds: 928 GTS, 993 TT
> 
> There are 4 primary problems with fitting  the "little 
> blacks" on a UrS .
> 1)  Small pad size  (smaller than the "medium blacks"  and 
> much smaller 
> than "big blacks")
> 2) Designed for a narrow 28mm rotor (A8 rotors are 30mm,  Porsche 
> rotors  that pair with "Medium" or "Big" calipers are all 32mm)
> 3) The "little blacks" are radially mounted, not axially 
> mounted like the 
> "medium blacks" or "Big Reds/Blacks", which means most likely 
> there doesn't 
> exist a bracket anyway to mate them to your Audi.
> 4) the "little blacks"  have smaller pistons sizes 
> (36mm/40mm) than the 
> "medium blacks" or "Big Reds/Blacks" (both those have 
> 36mm/44mm). However 
> this is the same as Boxster brakes I beleive.
> 
> In my opinion, the "little blacks" on 298mmx28mm rotors are 
> just adequate 
> for the ~3000 lb 944S2 / 968   (I have a 968CS with these 
> brakes) - however 
> with the right pads (cough cough Hawk Blues work really well 
> on these cars 
> cough cough) they can be just fine unless they are subject to 
> a really 
> braking intensive track or driver.
> 
> However I don't think these calipers, even with the A8 rotor will be 
> sufficient for the S6 - assuming you can safely squeeze that 
> 30mm rotor in 
> those calipers.  The primary reasons being #'s 1,2,3 above, 
> and to a lesser 
> extent #4.
> 
> However the UrS brakes are pathetic even on the street, (as a 
> separate 
> thread going on right how has protested!), and these "need" 
> the upgrade 
> **MUCH** more than your 944S2 does.
> 
> I would suggest going for a volume discount and getting 4 Big 
> Reds (or big 
> blacks) and taking care of both cars at the same time :-)
> 
> Drop me a line off list, if you want, I'm curious to hear what brake 
> upgrade you were planning for the 944S2 (I've looked into 
> this alot for the 
> 968 this summer until I "discovered" the Hawk Blues).
> 
> 
> Cheers,
> Keith
> 
> keith at maddock.com    http://keith.maddock.com/
> 
> 93 S4 (mit RS2 + BR upgrades) Portland OR
> 95 968CS (Ring Tool + Daily Driver) Koblenz, DE
> 1/8 89 GTI  16V (Spare Ring Toy)  Nürburg, DE  
> 
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