big red brakes

[urquattro-island]

hi i have been doing some reading and i was, wondering. Will these do on my s2???

http://cgi.ebay.de/Porsche-996-GT-3-...QQcmdZViewItem

[s2 on the way]

the 6 pots sit out from the disk so much that you "need?--so I've heard" 18's to clear them.....

also, not too sure if they mate up to the rs2 brackets or not........
ask them if from the center of the calper bolt to the next is 130.25mm....-----if so then the distance of the holes is the same as the rs2 bracket....(not too sure of the backspace though, but I assume so-------it'd be odd for the disks to sit farther out or in than any other set of disks on hubs from porsche))

there are also special long allen bolts 70 mm or so for the calipers to the bracket....

I say get the calipers and testfit with brackets and see how small of a disk you could run,,,,,,many things are possible and there are lots of combos people haven't tried...
if you could run a 323 mm then you could possibly use 17's, but the disk might be too small.........

good luck,,,
keep in the loop if you go for it

[Bram]

Will not fit the RS2 adapters for sure. You might have to buy MBT adapters (Ebay) and drill the holes for them yourselve or have somebody make custom brackets for your calipers.

I also checked these calipers for my 360mm setup, but without upgrading your S2 brake accumulator to a RS2 one I think you will notice quite a difference, in the negative sense,in brake handling with 6 potters.
That is why I stayed with 4 potters with my S2 brake accumulator.

[Corey]

These will not fit the RS2 bracket (bolt spacing is 130mm) the GT3 6 pot has a bolt spacing of 142mm.
The master cylinder is not affected regardless what size caliper you put on it.
No need to use exotic bolts, just buy them from Porsche for pence.

[Bram]

The master cylinder is not affected regardless what size caliper you put on it.

Are you sure? When you use 6 potters instead of 4 potters this requires more oil to be pushed into the calipers I thought.
Cees had the same problem with his 8-potters I believe. Correct me if I am wrong.

[urquattro-island]

well

last time i looked i did not have oil in my calippers, for your sake i hope you dont either.

[A1QSHIP]

Are you sure? When you use 6 potters instead of 4 potters this requires more oil to be pushed into the calipers I thought.
Cees had the same problem with his 8-potters I believe. Correct me if I am wrong.

Area of the pistons is what determines the master cylinder requirements. The area of the 6-piston calipers is nearly that of the 4-piston calipers so there is negligible difference in brake pedal effort between the two calipers.
Chris

[Bram]

Area of the pistons is what determines the master cylinder requirements. The area of the 6-piston calipers is nearly that of the 4-piston calipers so there is negligible difference in brake pedal effort between the two calipers.
Chris

I see it differently. Area is maybe just a small difference, however the volume of the oil cylinders that increases from 4 to 6 or 8 potters as well. I have seen the 8 potters and the total area of the pots is quite a lot larger then 4 pistons......

Just my 2 cents.

[shortsport]

It should be all explaned here
http://www.rallydesign.co.uk/catalog...pot_brakes.pdf