rotors and pads for my SC?

[IS300]

I am looking for advise on what brand you think is best,
pads/ shoes and what rotors? as well as..... drilled? slotted? ???

I am having stock calipers rebuilt ...
no track days .... Street only

thanks anthony

[tirwin]

I have liked the Porterfield pads even for street use. They produce a lot less brake dust than a typical pad.

The Zimmerman rotors seem to be often recommended here. You don't need drilled or slotted for street use. I've been researching for my own new brakes and that's what I was about to buy until a friend offered a set of almost new Carrera calipers and rotors.

It's been my understanding that 'drilled' rotors are prone to cracking. What you'd want are cast holes anyway. The idea behind 'drilled' and slotted is to help with off-gassing of the pads but it is unlikely that normal street driving would benefit.

[LUFTKUL]

I just changed my rotors and rebuilt my calipers on an all stock '84. I went with Zimmerman coated rotors (regular, no drilled or slotted) and mintex pads. Stock performance and low dust. All good here.

[ROW911SC]

PMB is currently rebuilding my calipers; going with Sebro discs and Porterfield pads as per their recommendation. Apparently Sebro are the only OEM discs actually made in Germany to Porsche specs.

[IS300]

How come I can't find the Porterfield rear pads for my SC? here on the pelican site?

[tirwin]

It's an error on the page. I ran into this the other day.

PMB-AP45R4-S are the fronts
PMB-AP31R4-S are the rears

If you look up the brake pads for an 84-89 Carrera it shows up. They use the same size pads as the SC.

[trond]

for street I recommend stock pads, with a Porsche part no. I tried many other types but these work best for me. Better cold performance than sports pads. Just what you need when you need to stop the car going to the office. Zimmermann undrilled disks

[RichardNew]

Drilled rotors are basically a cosmetic deal.

I would stick to OEM pads and rotors for the street. You want something that works at low temperatures.

"The original brake pads that came with your production car operated best in the 100° to 650° range. Race pads operate best in the 600° to 1500° range. Race pads are just getting effective at roughly the same point where the OEM pads are becoming useless."

The important item is rotor prep. Here's my take on rotor prep.


Porsche 907 Brakes

Richar Newton

[CCM911]

I am completely in agreement with Richard! I just rebuilt all my calipers and replaced the pads and rotors with stock. For street driving anything more is spending unnecessary dollars. Now if I was going to the track again, we would be having a totally different conversation, LOL.

[safe]

For street use stock pads and rotors, genuine from Porsche in a Porsche box, is a really good compromise.
OEM from 3rd party, like Pelican, is not the exact same stuff.

[uwanna]

I have found one good application for drilled rotors. I have an SC with widebody fenders,
consequently I have some rather large wheel spacers installed. With the spacers, the
calipers/rotors are no longer located inside the wheel barrel, but "out in the breeze" which would seem good for cooling. But, when driving in a heavy rain, hitting the brakes has
a delayed effect due to the water on the rotors and is VERY disconcerting. I replaced the solid rotors with cross drilled, and VOILA problem completely solved!

[safe]

Originally Posted by uwanna

I have found one good application for drilled rotors. I have an SC with widebody fenders,
consequently I have some rather large wheel spacers installed. With the spacers, the
calipers/rotors are no longer located inside the wheel barrel, but "out in the breeze" which would seem good for cooling. But, when driving in a heavy rain, hitting the brakes has
a delayed effect due to the water on the rotors and is VERY disconcerting. I replaced the solid rotors with cross drilled, and VOILA problem completely solved!

You need wider rims!