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E46 M3 (2001-2006) Engine: S54 - Max Hp: 333 hp at 7,900 rpm / 262 lb/ft at 4,900 rpm
Total Produced: 45,000+ - Years Produced: 2001 to 2006.


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Old Mon, Oct-22-2018, 01:24:00 AM   #51
TboneM3
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Default Re: Chach's DIY Porsche 996 BBK Conversion extensive write up

Looks like you've got the wrong pads. Keep in mind there are a lot of variations on brembo calipers and pads from all sorts of porsches, so part #s need to be exact.

I don't think it's possible that the po was running 325mm rotos and now you're running 345mm. If that were to happen, your fitment would be way off. The bracket is different and you're talking about a 6.5mm swing from calipers machined for 325mm vs. 345mm.

Your fitment seems fine to me, just a slightly incorrect pad - again, remember there are lots of similar pads for lots of varying 4 piston brembo calipers so it doesn't surprise me that your fitment looks as good as it does considering that you've got the wrong pads.

Also, are you using dampers? I found, with new pads, rotors and dampers, it was all a little too tight and the wheel was stiff to turn. Removed the dampers and everything's perfect now.
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/// 2004 SilberGrau M3 · Coupe · 6MT · slicktop · manual seats · zero options · JOURNAL
-NA S54-


·Evolve-R Alpha N · Evolve CSL CF Airbox · Eventuri Scoop · Supersprint V1 stepped 63mm · SS V1 S pipe 63mm + 200 cell HFC · OE sect 2 60mm · SS Sport 60mm
·Besian · RE pullies/fan delete · WPC rod bearings · GroundControl S/A (Koni/Eibach 440/550) + tall RSMs · TMS Camber & Subframe plates · SPC Adj alloy rear camber arms
·RE Trans Mounts · AKG poly SUB/DIFF 95a · SDW RTAB · Weighted ///M knob + UUC DSSR + delrin carrier bush · OE CSL trunk · APEX 75mm Studs
·Sportline 8S 18"x8.5/9.5" · MPSS 245/275 · Brembo 996 36/40 345mm CSL Textar FF & 28/30 328mm CSL ATE "D738" FF · CM brackets & ss/teflon lines
·Pioneer DEH-80PRS · Eclipse PA5422 · CDT HD-6 + WS-100i · CDT EX-530 · 8" Kicker

DD/Beater: 1999 Civic LX - Kenwood x998 · PPI 1600.4 · CDT HD-6 + HD-100 · CDT EX-530 · DVC 10"

Last edited by TboneM3; Mon, Oct-22-2018 at 01:27:44 AM.
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Old Mon, Oct-22-2018, 01:48:07 PM   #52
Obioban
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Default Re: Chach's DIY Porsche 996 BBK Conversion extensive write up

Quote:
Originally Posted by M3AZ View Post
I just bought some used 996 calipers for this project. Anyone know if 17” wheels work with this setup?
Shorter answer: it depends on the wheel, but generally not

Longer answer:
I tried the 17" BBS RG-R from my M3 wagon, as well as one of the stock e46 17s from it (which I use for snows), and neither cleared.

On the other end of the spectrum, I have 17" Apex ARC 8s that are specifically designed for brake clearance as my M3 coupe's track setup-- and it clears my Brembo 355/4 setup (considerably larger than this).
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Old Mon, Oct-22-2018, 02:09:55 PM   #53
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Default Re: Chach's DIY Porsche 996 BBK Conversion extensive write up

Just installed my fronts this morning. It could be the wrong pads, but looks more like the calipers were not machined.


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Old Wed, Oct-31-2018, 05:57:37 PM   #54
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Default Re: Chach's DIY Porsche 996 BBK Conversion extensive write up

Have a quick question for you guys regarding this. I have seen people running front “non-s” Boxster pads in the rear on this conversion. Is this a bracket specific application or it doesn’t matter? I’m looking at the road rally and ecs bracket adapters. There isn’t much on the ecs brackets that say you can run front non-s pads in the rear. I’m fine with just running the standard rear pad, but if I can fit larger ones then why not.
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Old Wed, Oct-31-2018, 06:02:45 PM   #55
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Default Re: Chach's DIY Porsche 996 BBK Conversion extensive write up

Quote:
Originally Posted by Branden246 View Post
Have a quick question for you guys regarding this. I have seen people running front “non-s” Boxster pads in the rear on this conversion. Is this a bracket specific application or it doesn’t matter? I’m looking at the road rally and ecs bracket adapters. There isn’t much on the ecs brackets that say you can run front non-s pads in the rear. I’m fine with just running the standard rear pad, but if I can fit larger ones then why not.
I believe the RR brackets will allow you to run the base boxster front pads on both sides of each caliper, but the CM brackets from ECS won't allow you to run that pad on the inside of each caliper, but you can use the pad on the outside to avoid the rust ring. There'll be a rust ring on the inside of the rotor, but you'll never see it.
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/// 2004 SilberGrau M3 · Coupe · 6MT · slicktop · manual seats · zero options · JOURNAL
-NA S54-


·Evolve-R Alpha N · Evolve CSL CF Airbox · Eventuri Scoop · Supersprint V1 stepped 63mm · SS V1 S pipe 63mm + 200 cell HFC · OE sect 2 60mm · SS Sport 60mm
·Besian · RE pullies/fan delete · WPC rod bearings · GroundControl S/A (Koni/Eibach 440/550) + tall RSMs · TMS Camber & Subframe plates · SPC Adj alloy rear camber arms
·RE Trans Mounts · AKG poly SUB/DIFF 95a · SDW RTAB · Weighted ///M knob + UUC DSSR + delrin carrier bush · OE CSL trunk · APEX 75mm Studs
·Sportline 8S 18"x8.5/9.5" · MPSS 245/275 · Brembo 996 36/40 345mm CSL Textar FF & 28/30 328mm CSL ATE "D738" FF · CM brackets & ss/teflon lines
·Pioneer DEH-80PRS · Eclipse PA5422 · CDT HD-6 + WS-100i · CDT EX-530 · 8" Kicker

DD/Beater: 1999 Civic LX - Kenwood x998 · PPI 1600.4 · CDT HD-6 + HD-100 · CDT EX-530 · DVC 10"
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Old Wed, Oct-31-2018, 06:24:54 PM   #56
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Default Re: Chach's DIY Porsche 996 BBK Conversion extensive write up

Quote:
Originally Posted by TboneM3 View Post
I believe the RR brackets will allow you to run the base boxster front pads on both sides of each caliper, but the CM brackets from ECS won't allow you to run that pad on the inside of each caliper, but you can use the pad on the outside to avoid the rust ring. There'll be a rust ring on the inside of the rotor, but you'll never see it.
Thank you. Now comes the tough call. Get rally road and run the larger front pad in the rear, or get the CM brackets and run regular rear pads.

Is there much difference between the rally road and ecs (CM) brackets?

I have the calipers already, getting them machined at my work, and have my lines picked out. Just deciding on the brackets now.

Last edited by Branden246; Wed, Oct-31-2018 at 06:32:20 PM.
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Old Wed, Oct-31-2018, 06:50:48 PM   #57
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Default Re: Chach's DIY Porsche 996 BBK Conversion extensive write up

Quote:
Originally Posted by Branden246 View Post
Thank you. Now comes the tough call. Get rally road and run the larger front pad in the rear, or get the CM brackets and run regular rear pads.

Is there much difference between the rally road and ecs (CM) brackets?

I have the calipers already, getting them machined at my work, and have my lines picked out. Just deciding on the brackets now.
I'm running the RR rear brackets with the non-S front pad in the rear.

No issues, but can't answer whether one is better than the other. In the end I would imagine from a performance perspective the affect is negligible and wouldn't translate to any more brake torque with the larger pad.
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Old Wed, Oct-31-2018, 08:41:55 PM   #58
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Default Re: Chach's DIY Porsche 996 BBK Conversion extensive write up

I just explained how you can still use the boxter pads in the rear with either bracket maker.
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/// 2004 SilberGrau M3 · Coupe · 6MT · slicktop · manual seats · zero options · JOURNAL
-NA S54-


·Evolve-R Alpha N · Evolve CSL CF Airbox · Eventuri Scoop · Supersprint V1 stepped 63mm · SS V1 S pipe 63mm + 200 cell HFC · OE sect 2 60mm · SS Sport 60mm
·Besian · RE pullies/fan delete · WPC rod bearings · GroundControl S/A (Koni/Eibach 440/550) + tall RSMs · TMS Camber & Subframe plates · SPC Adj alloy rear camber arms
·RE Trans Mounts · AKG poly SUB/DIFF 95a · SDW RTAB · Weighted ///M knob + UUC DSSR + delrin carrier bush · OE CSL trunk · APEX 75mm Studs
·Sportline 8S 18"x8.5/9.5" · MPSS 245/275 · Brembo 996 36/40 345mm CSL Textar FF & 28/30 328mm CSL ATE "D738" FF · CM brackets & ss/teflon lines
·Pioneer DEH-80PRS · Eclipse PA5422 · CDT HD-6 + WS-100i · CDT EX-530 · 8" Kicker

DD/Beater: 1999 Civic LX - Kenwood x998 · PPI 1600.4 · CDT HD-6 + HD-100 · CDT EX-530 · DVC 10"
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Old Wed, Oct-31-2018, 09:02:12 PM   #59
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Default Re: Chach's DIY Porsche 996 BBK Conversion extensive write up

My experience with the RR rear brackets and the pads is documented here:
http://www.m3forum.net/m3forum/showthread.php?t=512078

TL;DR: depends on the pad thickness if you can run the taller pads on both sides of the rears with the Rally Road bracket (unless they updated the design again).
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Old Wed, Oct-31-2018, 09:13:40 PM   #60
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Default Re: Chach's DIY Porsche 996 BBK Conversion extensive write up

Just from a visual comparison of the brackets, I can see that RR machines them slightly differently, presumably, to give room for the pad, so I would assume that they did update it, but perhaps not. I can't say for sure, just that there's an obvious difference in the brackets where that contact would occur - you'd expect that they wouldn't have tried and failed with a design that would allow boxster front pads.

Furthermore, I believe the RR site is where the instructions are to go ahead and use front boxster pads to avoid rust ring.
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/// 2004 SilberGrau M3 · Coupe · 6MT · slicktop · manual seats · zero options · JOURNAL
-NA S54-


·Evolve-R Alpha N · Evolve CSL CF Airbox · Eventuri Scoop · Supersprint V1 stepped 63mm · SS V1 S pipe 63mm + 200 cell HFC · OE sect 2 60mm · SS Sport 60mm
·Besian · RE pullies/fan delete · WPC rod bearings · GroundControl S/A (Koni/Eibach 440/550) + tall RSMs · TMS Camber & Subframe plates · SPC Adj alloy rear camber arms
·RE Trans Mounts · AKG poly SUB/DIFF 95a · SDW RTAB · Weighted ///M knob + UUC DSSR + delrin carrier bush · OE CSL trunk · APEX 75mm Studs
·Sportline 8S 18"x8.5/9.5" · MPSS 245/275 · Brembo 996 36/40 345mm CSL Textar FF & 28/30 328mm CSL ATE "D738" FF · CM brackets & ss/teflon lines
·Pioneer DEH-80PRS · Eclipse PA5422 · CDT HD-6 + WS-100i · CDT EX-530 · 8" Kicker

DD/Beater: 1999 Civic LX - Kenwood x998 · PPI 1600.4 · CDT HD-6 + HD-100 · CDT EX-530 · DVC 10"
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Discussing Chach's DIY Porsche 996 BBK Conversion extensive write up in the E46 M3 (2001-2006) Forum - Engine: S54 - Max Hp: 333 hp at 7,900 rpm / 262 lb/ft at 4,900 rpm
Total Produced: 45,000+ - Years Produced: 2001 to 2006. at BMW M3 Forum.com (E30 M3 | E36 M3 | E46 M3 | E92 M3 | F80/X)