Porsche Brembo 996 BBK conversion

[nyc951]

Any thoughts on 996 BBK clearance with E39-spec'd BBS RG-Rs? I have a set of 996 calipers being prepped but was looking to plan ahead in terms of fitment with the current wheel setup.

• 18x8.5 ET22 Front
• 18x10 ET25 Rear

The general consensus seems to be that it won't clear, and I believe Repoman has already test fitted them and found that it won't clear,

But I was also able to find someone who did get them to work with E46-spec RG-Rs (18x8.5 ET38 Fronts) with a 12mm spacer up front (guessing based on the owner's previous posts):

A 12 mm spacer would effectively make the front specs 18x8.5 ET26.


Thread about the wheels shown above: 18" BBS R-GR's w/Porsche 996 BBK Fitment - NA M3 Forums

I can’t answer your question. However I have an e39 M5 and have been looking for the RG-Rs, and I live in MA. Let me know if you ever sell those wheels. Serious (I’m a mature adult, just have a car parts problem).

[Obioban]

If anyone has been able to source Brembo GT kit grade seals, I need some!

https://nam3forum.com/forums/forum/main-forum/e46-2001-2006/229329-porsche-brembo-996-bbk-conversion-let-s-figure-out-how-to-fix-the-dust-boots-seals

[Arith2]

I believe the bleeder screws are around 8nm. I've used a torque wrench on a bleeder and I've only seen one guy use one. I also caught him torquing underbody screw to 2.8nm. Just snug but not too tight. A solid 10-15nm will do

[Nate047]

Thank you kindly!

[Tbonem3]

Yes, no need for tape or lube or thread locker. The shape of the male, threaded fitting completely seals the port both on the pipes and the bleeders.

Don't know what the tq spec is, but it can't be too high. I just feel it, personally, but I bet you could find the spec on Pcar forums (996/986/987).

[Nate047]

Maybe this is a dumb question but I haven't found the answer so far. When installing new cross over pipes and bleeders on these calipers, do we just thread them on bare? How tight do these need to be?

[Nate047]

Hey guys, looking to buy a set of rear calipers only if anyone has some spares. LMK

edit: found and bought

[Tbonem3]

I got a gallon of decon July 4th sale

[Casa de Mesa]

I have a set of DS2500 (front) coming soon. Motul RBF600 as well. Hopefully does the trick for canyon bombing (versus the stock textars w/ typ200).

Functionally for what your intended use is, there may not be a better pad. It's really impressive for canyon runs/mountain passes. They are fantastic.

Get your detailing equipment ready though, lol 😆

[Tbonem3]

I have a set of DS2500 (front) coming soon. Motul RBF600 as well. Hopefully does the trick for canyon bombing (versus the stock textars w/ typ200).

[Nardo S54]

Some people swear by those DS2500 pads for the street and light track duty. I will say that their street performance is pretty freaking good once they are bedded in. My experience is limited to mountain driving but pushing them pretty hard - albeit, no track time with them, I have race pad for that. Not too grabby/low initial bite (which I vastly prefer), GREAT modulation, seem to be easy on rotors, didn't come close to their limit during spirited driving.

That said, I bought these pads almost specifically for their claimed low dust and hopes I could switch to these in my Porsche 996 caliper-ed M3. But man oh man have these been dusty AF!! Here is after 100 miles of back roads, with maybe 20 miles of putting them through their paces. This is the most dusty pad I have ever used on any vehicle under any application.

Overall I don’t regret the experiment. I will say it’s the best “dual duty” pad out there but it’s best suited for DE1/2.

Re copious amounts of dust also agree. It helps I ceramic coated my rims at beginning of season but they’re as bad as a full blown track pad without the bite.

DS2500s in 996 calipers didn’t make it through one event for me.

Not surprising. I used them for 2 traffic filled sessions at Watkins and burned through most of them. In any case I’ve switched to Hawk DTC60’s, normally I’m a PFC guy but FCP doesn’t carry it.

[Casa de Mesa]

I think they'd be a fantastic street pad if it weren't for the copious amounts of dust.

[Obioban]

DS2500s in 996 calipers didn’t make it through one event for me.

[Casa de Mesa]

On the topic of brakes, I use Textar on the street. Pretty dusty but at least no squeal even without vibration pads.

I was curious to see if the Ferodo DS2500 could really serve as a dual duty pad. Ngl they’re way better than your typical street ‘performance’ pad (e.g. EBC Yellow or Hawk HPS) but you’ll quickly reach the limit if you’re an advanced level driver. I would say these are best suited for DE1/2 or can be used as rainy day / wet session pad. But if you’re doing any kind of opening passing with 200tw or stickier tires, you’re better off with a traditional race pad llke DTC-60 or PFC-11s.

Some people swear by those DS2500 pads for the street and light track duty. I will say that their street performance is pretty freaking good once they are bedded in. My experience is limited to mountain driving but pushing them pretty hard - albeit, no track time with them, I have race pad for that. Not too grabby/low initial bite (which I vastly prefer), GREAT modulation, seem to be easy on rotors, didn't come close to their limit during spirited driving.

That said, I bought these pads almost specifically for their claimed low dust and hopes I could switch to these in my Porsche 996 caliper-ed M3. But man oh man have these been dusty AF!! Here is after 100 miles of back roads, with maybe 20 miles of putting them through their paces. This is the most dusty pad I have ever used on any vehicle under any application.

[FCD46]

18x10 et25 fits with no fender rubbing?

Yes, with maxed camber. He’s on AST coils dropped decently low too. We raised a bit for the dragon where this picture was taken.. aggressive lean on the corners there