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BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Technical Forums > Suspension | Brakes | Chassis > Anyone running a BBK with Kosei K1s?



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      10-23-2008, 06:24 PM   #1
scheherazade
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Anyone running a BBK with Kosei K1s?

And for that matter, does anyone have the inner wheel diameter requirements for Brembo and Stoptech BBKs?

-scheherazade
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      10-23-2008, 08:57 PM   #2
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I have the Rotora 6 piston Caliper kit (fits over the stock rotors) and the Kosei K1s fit, but if I were to go any bigger then the Koseis wouldn't fit.
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      10-23-2008, 09:40 PM   #3
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Quote:
Originally Posted by Mr. 5 View Post
I have the Rotora 6 piston Caliper kit (fits over the stock rotors) and the Kosei K1s fit, but if I were to go any bigger then the Koseis wouldn't fit.
you think slightly larger rotors like 355mm will fit?
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      10-24-2008, 03:15 PM   #4
scheherazade
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Quote:
Originally Posted by Mr. 5 View Post
I have the Rotora 6 piston Caliper kit (fits over the stock rotors) and the Kosei K1s fit, but if I were to go any bigger then the Koseis wouldn't fit.
Is this the setup you usually run with?

The rotora BBK is a direct swap right?
Do you know how much larget the pad area is? (%?)
What do you think of this kit in general? I was looking to see about BBKs and 17s, and the only one I found before was a willwood kit, but it was for the e4X series.

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      10-24-2008, 03:37 PM   #5
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Quote:
Originally Posted by Gen_E92 View Post
you think slightly larger rotors like 355mm will fit?
I don't think so. I think you'd be pushing it.

Quote:
Originally Posted by scheherazade View Post
Is this the setup you usually run with?

The rotora BBK is a direct swap right?
Do you know how much larget the pad area is? (%?)
What do you think of this kit in general? I was looking to see about BBKs and 17s, and the only one I found before was a willwood kit, but it was for the e4X series.

-scheherazade
Yes, a direct caliper swap.
Look at the math that I did in post #14 when comparing the surface areas of both pads.

http://www.e90post.com/forums/showthread.php?t=170695
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      10-24-2008, 03:39 PM   #6
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Quote:
Originally Posted by Mr. 5 View Post
I don't think so. I think you'd be pushing it.



Yes, a direct caliper swap.
Look at the math that I did in post #14 when comparing the surface areas of both pads.

http://www.e90post.com/forums/showthread.php?t=170695

Nice.
I feel good about the K1's now.
I'll order a set soon as my car arrives (next week I'm told).

-scheherazade
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