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Go Back   IWSTI.com: Subaru WRX STI Forums > GD Series STi Discussion (2003/4-2007) > GD-Technical > GD-Braking


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Old 10-04-2008, 02:26 PM   #1
The Next Petter Solberg
 
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Default Rear rotor weights?

Been searching and found stock rear rotor weight and DBA rear rotor weight. Anyone have weights for....

Powerslot
Stoptech
Racing Brake 2 pc.
Project MU

or any other rear rotors for an 05 STi?

I have about 1 more track day in my stock rear rotors and it will be time for new ones. I want as light as possible but also want them to absorb as much heat as possible (racing brake 2 pc. would be best I would guess).


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Old 10-06-2008, 10:34 PM   #2
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Default Re: Rear rotor weights?

No one knows the weighs of these rotors?
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Old 10-06-2008, 11:20 PM   #3
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Default Re: Rear rotor weights?

Project Mu SCR rear rotor for 2005 STI: 7.5 kg (16.53 lbs)
Project Mu SCR-PRO rear rotor for 2005 STI: 6.4 kg (14.11 lbs)

What's the stock weight?
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Old 10-06-2008, 11:30 PM   #4
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Default Re: Rear rotor weights?

Stock rears weigh 17-17.5 from what I read.

DBA rears weigh 17.2.

Thanks for the Project Mu weights.
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Old 10-09-2008, 12:02 AM   #5
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Default Re: Rear rotor weights?

Powerslots rears are 16 lbs.
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Old 10-11-2008, 03:24 PM   #6
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Default Re: Rear rotor weights?

I read that Powerslot rotors are not track worthy so they are out of the question.
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Old 10-13-2008, 01:06 PM   #7
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Default Re: Rear rotor weights?

Stoptech rears weigh 17.5 lbs. About the same as stock.
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Old 10-15-2008, 11:48 AM   #8
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Default Re: Rear rotor weights?

Racingbrake rear 2 piece rotors for the 05 STi according to their website are 16 lbs. Pretty heavy for a 2 piece I thought. Looks like I am gonna have to research the Project Mu SCR-PRO rear's cause they are lightest and cheaper than the Racingbrake's.
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Old 10-15-2008, 12:15 PM   #9
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Default Re: Rear rotor weights?

Check out this link for the Project Mu SCR-PRO:
SCR SERIES BRAKE ROTORS MATCHING LIST (ENGLISH)

The one we'd want (rear rotor) is the GPRF059, with a list price of 94,000 Yen. That's about $930 with the current exchange rate, before shipping. Yikes...
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Old 10-15-2008, 10:40 PM   #10
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Default Re: Rear rotor weights?

I have heard that Girodisc has a 2 piece rear rotor releasing in the near future (or has already been released) that is lighter than the OEM rotor. Give them a call and they can provide you with details of their new application.

girodisc racing brakes and technology


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