Porsche 996 Brembo BBK Conversion Install

[xpme46m3]

LOL what happened to the pictures? i uploaded the pdf to the doc and all the picture links are now broken.

[xpme46m3]

Calipers used for this conversion are calipers from:

• 1998-2005 Porsche 996 (C2/C4, non-turbo)
• 1999-2004 Porsche 986 Boxster S
• 2005-2012 Porsche 987 Cayman S

Thanks. Edited

[duracellttu]

I have collected a bunch of information and part numbers for everything you need to rebuild these calipers and install them. This was put together during my build, where the old forum had lots of out-dated information across may threads. See the attached PDF. Hope it helps members in the future.

[duracellttu]

Thanks. Edited to reflect this information.

Calipers used for this conversion are calipers from:

• 1998-2005 Porsche 996 (C2/C4, non-turbo)
• 1999-2004 Porsche 986 Boxster S
• 2005-2012 Porsche 987 Cayman S

[xpme46m3]

The caliper part numbers you noted above were used on later year cars as well. Important thing is to get the right part number which you listed. Mine came of a 2005/2008 model year.

I used the rally road brake lines on mine and they fit perfect.

Awesome write up..thanks

Thanks. Edited to reflect this information.

[xpme46m3]

Can you post recommended spacer sizes for commons wheels? I have OEM ZCPs and head heard minimum of 15mm front spacers and none required for rear.

I dont have that information because I have ZCP squared and the wheels clear the brakes with no issues. Maybe someone else who has the traditional setup can comment and I will note that on this thread.

[sdmcoupe]

The caliper part numbers you noted above were used on later year cars as well. Important thing is to get the right part number which you listed. Mine came of a 2005/2008 model year.

I used the rally road brake lines on mine and they fit perfect.

Awesome write up..thanks

[duracellttu]

Can you post recommended spacer sizes for commons wheels? I have OEM ZCPs and head heard minimum of 15mm front spacers and none required for rear.

[duracellttu]

Found a few pieces of information to support the smaller piston leading orientation.

[Tbonem3]

Ya left is still left. You just taking the cross pipe from right caliper and putting into bleeder holes of lefty and then put bleeders into where the original left crosspipe vacated. Smaller pistons and crosspipe on the bottom when you're all done and mounted.

[xpme46m3]

It's the other way 'round. You want the smaller pistons making contact "first," leading, so bottom.

Smaller pistons, front and rear, should be closest to crosspipes.

The way the rear calipers mount on the porsche is 180 from ours, so we have to swap the pipes. You don't swap calipers from side to side, because you want to keep the smaller pistons as leading.

ok i'll check my rear calipers when the weather breaks. I didnt swap my calipers from side to side but i will definitely check the orientation. Thanks.

[COVID-19]

^^+1

[Tbonem3]

It's the other way 'round. You want the smaller pistons making contact "first," leading, so bottom.

Smaller pistons, front and rear, should be closest to crosspipes.

The way the rear calipers mount on the porsche is 180 from ours, so we have to swap the pipes. You don't swap calipers from side to side, because you want to keep the smaller pistons as leading.

[xpme46m3]

Awesome write up , thanks for the contribution!

Do you happen to have any pictures of the rear caliper orientation? I just want to make sure I understand which piston is supposed to go where.

Sorry I didnt take a picture. But its quite simple - The rear is installed as a trailing caliper - meaning the smaller piston will be at the top/front and the bigger piston at the bottom/rear. If that makes sense. Bleeders will always be on top. Its easy to figure out from that point. If you are still confused I can probably help with facetime or something at some time.

[xpme46m3]

Its a busy day at work. Still working on uploading the pictures. I didnt have help and have been trying to take as many pictures as I can with my phone. Unfortunately a lot of the pics dont really show what I needed to convey so Im using pics from both sides. Will try to get the rest done after work.