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Old Tue, Jun-10-2014, 01:20:42 PM   #131
hotsd101
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Default Re: Brackets for E92 M3 Rear Rotors + 996 GT3 4-Piston Rear Calipers

Another things il mention which isnt mentioned anywhere is that if using the e92 m3 rear rotor with gt3 calipers, yes its know that a 330 e46 or e92 m3 shoe should be used but also note.

If you buy shoes alone, your screwed. 1 of the spring clips which holds the shoes together is different on each side. If you try like I did, to use the e46 m3 spring on an e46 330 shoe, its impossoble to get it on. Its about 10 mill 2 short and you will be serioisly frustrated trying to stretch it on. Moral of the story, get the damn right spring.
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Old Tue, Jun-10-2014, 01:23:15 PM   #132
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Default Re: Brackets for E92 M3 Rear Rotors + 996 GT3 4-Piston Rear Calipers

2. Also note, I didnt need to cut reat dist shiels ears off. Mallet and dolly to massage shield out a little is all that was needed for me.
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Old Tue, Jun-10-2014, 01:45:21 PM   #133
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Default Re: Brackets for E92 M3 Rear Rotors + 996 GT3 4-Piston Rear Calipers

3. Another thing which isnt mentioned is when getting the brake lines made, the hole which the factory bmw line travels through to meet the solid steel line/flare fitting. The hole between the 2 is some kind of special bmw design to stop the top and bottom flapping around. No custom line will fit through this hole. You need to drill the hole further out to make it like a normal circle then you use one of those folk looking things which brake shop will have. This sits between the flare nut and line fitting and stops the whole thing flopping around.

Anything more I think of I will post.

Last edited by hotsd101; Tue, Jun-10-2014 at 01:48:50 PM.
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Old Tue, Jun-10-2014, 02:23:13 PM   #134
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Default Re: Brackets for E92 M3 Rear Rotors + 996 GT3 4-Piston Rear Calipers

Quote:
Originally Posted by Squirrelhill View Post
Quick question for the community....I just purchased a set of p0lar's e46 m3 rear brackets from another forum member. I plan to pair the brackets with Porsche Boxster S calipers and OEM 328mm rotors or perhaps aftermarket drilled rotors in OEM fitment.

1. Do you the rear calipers need machining? I did not see any mention of this in this thread or in my other research, but I am hoping that someone who has performed the rear swap will weigh in definitively on whether the Porsche Boxster S calipers need any machining or other mods.

2. What would be the best brake lines to use? I am considering the Rallyroad lines, but wanted to see if there are any better alternatives.

3. What about brake pads? The initial post in this thread recommends the Porsche OEM pads, but I was hoping to find a street pad alternative (preferably one with good bite and not a lot of dust).

Thanks all for any input and guidance.
Regarding rear caliper p/n 996.352.422 (right) 996.352.421 (left):

1. No, the rear calipers will not need to be machined... only the fronts.

2. When I was asking this question with P0lar he suggested I just pay a slight premium and go with the StopTech lines with banjo joints. The rear p/n is 950.34506 - http://store.zeckhausen.com/catalog/...oducts_id=1059

3. There's no such thing as good bite/low dust... there's plenty of other threads to argue about this on... lets not do it here. The Textar's are the only suggestion you'll get here for a street pad... but there's tons of options available for you to choose from. Let us know what you choose and how they work out
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Old Tue, Jun-10-2014, 03:02:11 PM   #135
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Default Re: Brackets for E92 M3 Rear Rotors + 996 GT3 4-Piston Rear Calipers

Quote:
Originally Posted by hotsd101 View Post
All i can say is holy F%$K, these monsters stop.

after bedding and some driving i have performed 10 * 200kph - 0 in a row, full pedal and have seen zero fade with stock brembo oe pads.
Track tested, mother approved.
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Old Tue, Jun-10-2014, 03:06:01 PM   #136
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Default Re: Brackets for E92 M3 Rear Rotors + 996 GT3 4-Piston Rear Calipers

Quote:
Originally Posted by hotsd101 View Post
Another things il mention which isnt mentioned anywhere is that if using the e92 m3 rear rotor with gt3 calipers, yes its know that a 330 e46 or e92 m3 shoe should be used but also note.
I've mentioned this somewhere, and you're correct, it is -5mm in diameter.

Quote:
If you buy shoes alone, your screwed. 1 of the spring clips which holds the shoes together is different on each side. If you try like I did, to use the e46 m3 spring on an e46 330 shoe, its impossoble to get it on. Its about 10 mill 2 short and you will be serioisly frustrated trying to stretch it on. Moral of the story, get the damn right spring.
It's not impossible, it is just VERY, VERY difficult. Mine is on, I STILL need to swap to the 330 or E92 springs, lol. Frustration isn't the word.
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Old Tue, Jun-10-2014, 05:34:23 PM   #137
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Default Re: Brackets for E92 M3 Rear Rotors + 996 GT3 4-Piston Rear Calipers

Steph just wanted to post up to say thanks for the brackets -- They were in the mailbox two days after purchase so thx again!!
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Old Tue, Jun-10-2014, 05:35:52 PM   #138
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Default Re: Brackets for E92 M3 Rear Rotors + 996 GT3 4-Piston Rear Calipers

Quote:
Originally Posted by BearDeXPS View Post
Regarding rear caliper p/n 996.352.422 (right) 996.352.421 (left):

1. No, the rear calipers will not need to be machined... only the fronts.

2. When I was asking this question with P0lar he suggested I just pay a slight premium and go with the StopTech lines with banjo joints. The rear p/n is 950.34506 - http://store.zeckhausen.com/catalog/...oducts_id=1059

3. There's no such thing as good bite/low dust... there's plenty of other threads to argue about this on... lets not do it here. The Textar's are the only suggestion you'll get here for a street pad... but there's tons of options available for you to choose from. Let us know what you choose and how they work out
Bear, you mentioned the stoptech lines in another thread back in march as well. Any chance you have a part number for the front lines needed for the boxster s calipers? Thx for posting the rear #s. I'd rather go the route with the banjo spec lines than the RR lines. Thx!
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Old Tue, Jun-10-2014, 06:43:53 PM   #139
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Default Re: Brackets for E92 M3 Rear Rotors + 996 GT3 4-Piston Rear Calipers

hotsd101 and BearDeXPS -- Thank you both very much for the input and guidance. It addressed many of my questions and concerns. I am assembling the necessary parts for the Boxster S conversion and will try to help add to the quality of this thread with my progress/experience.

By way of brake pads, I do not track my car, and am most concerned with brake dust as the BBK is primarily an asthetic upgrade in my case. I did some preliminary research on Tire Rack and it looks like both the Akebono and Hawk ceramic pads will fit the Boxster S calipers. I need to do some more research on the sizing and whether they will completely cover the rotors
.

Quote:
Originally Posted by jww///95 View Post
Bear, you mentioned the stoptech lines in another thread back in march as well. Any chance you have a part number for the front lines needed for the boxster s calipers? Thx for posting the rear #s. I'd rather go the route with the banjo spec lines than the RR lines. Thx!
I would also very much appreciate the p/n for the front stoptech lines and will likely go in this direction as well (over the RR lines).
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Last edited by Squirrelhill; Tue, Jun-10-2014 at 07:30:59 PM.
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Old Tue, Jun-10-2014, 06:53:49 PM   #140
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Default Re: Brackets for E92 M3 Rear Rotors + 996 GT3 4-Piston Rear Calipers

Quote:
Originally Posted by Squirrelhill View Post
By way of brake pads, I do not track my car, and am most concerned with brake dust as the BBK is primarily an asthetic upgrade in my case. I did some preliminary research on Tire Rack and it looks like both the Akebono and Hawk ceramic pads will fit the Boxster S calipers. I need to do some more research on the sizing and whether they will completely cover the rotors[/SIZE].
I really try not to stress this, and BearDeXPS was correct that this isn't the thread to do it in, but when you're installing a kit like this, that WILL reduce the bias more to the rear, I can't emphasize enough how important a properly-performing pad becomes.

Many people want the appearance of a performance braking system without a concern that they'll ever utilize that performance. I understand that. If you put 'dustless' pads on the front of this car, you WILL increase stopping distances noticeably, and not only in cold weather conditions.

This isn't a myth, this is cold hard fact. No one likes brake dust - we accept it because the alternatives are simply unbearable. The nice part about these kits are that we have such great pad options available, unlike many of the nice aftermarket BBKs available. We also have extremely well-balanced OEM rotors at our disposal - ALSO unlike many of the nicer aftermarket BBKs.

Why leverage what is arguably one of the most critical components of a brake system to your disadvantage? This is like flushing your brake system with Walmart DOT3 brake fluid because you never plan to put your car in a situation where it's imperative that it stops properly. That's simply something none of us can predict with any level of certainty.
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Discussing Brackets for E92 M3 Rear Rotors + 996 GT3 4-Piston Rear Calipers in the Parts for Sale/Wanted Forum - Post your Parts Wanted, and non commercial bmw related items for sale. We ask that companies selling goods become a Sponsor to advertise your goods. at BMW M3 Forum.com (E30 M3 | E36 M3 | E46 M3 | E92 M3 | F80/X)