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      12-07-2012, 02:28 PM   #45
dex37
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For such a low production volume, pet-project car, it's all about breaking even financially (or lose as little as possible). Therefore they used off-the-shelf Brembo calipers which were designed to work on rotors of specific sizes.
Brembo uses a smaller rear rotor for the GT. The GTS has a slightly bigger rotor at the rear axle than at the front. That's why I was wondering what is it good for.
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      12-07-2012, 02:56 PM   #46
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Brembo uses a smaller rear rotor for the GT. The GTS has a slightly bigger rotor at the rear axle than at the front. That's why I was wondering what is it good for.
Brembo has 380 and 365 for the front; 380 and 345 for the rear. You can combine it 380/380, 380/345, or 365/345.

The GTS has 378 front, 380 rear, which is basically the same (just Germans being Germans ) 2 mm is quite negligible IMO.
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      12-07-2012, 04:02 PM   #47
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Quote:
Originally Posted by Richard@M-World View Post
Brembo has 380 and 365 for the front; 380 and 345 for the rear. You can combine it 380/380, 380/345, or 365/345.

The GTS has 378 front, 380 rear, which is basically the same (just Germans being Germans ) 2 mm is quite negligible IMO.
That's true. They also made their own rotors and didn't use those from Brembo.
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      12-09-2012, 08:09 PM   #48
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Are you guys using these kits ducting your brakes as well?
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      12-10-2012, 11:15 AM   #49
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Are you guys using these kits ducting your brakes as well?
+1 I'm also interested to hear opinions about whether installing duct kit is
worth the investment if upgrading to BBK
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      12-10-2012, 12:56 PM   #50
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With the stock system I was going through a set of OEM pads in 3 to 4 20min sessions before the pads turned to dust. After upgrading to the BBK I was able to go 5 sessions before getting the stoptech performance pads to start to fade. Just moving to the BBK and the supplied pads made a huge improvement over the stock kit and stock pads. Running Hawk DTC pads with the BBK I have not experienced any fade yet and I have not installed air cooling ducts. Only thing missing is I did not try race pads with the stock set up to see if that would need cooling also.
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      12-10-2012, 01:32 PM   #51
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Are you guys using these kits ducting your brakes as well?
StopTech ST60/ST40 setup with Pagid RS29 pads. No ducting. Doing well so far. Getting about 5-6 track days out of the front pads, and about double that from the rears.
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