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Replacing floating rotors OEM or aftermarket?

So I知 going to have my brakes totally rebuilt this spring along with new tires.

I知 thinking potenza re11s for tires.

I am trying to decide on the rotors as they are nearly 2XS as expensive for OEM.

https://www.pelicanparts.com/More_Info/93035104700.htm?pn=930-351-047-00-M294&catalog_description=Brake%20Disc%20%20%20%20%28Fro nt%20Left%29%20%20&SVSVSI=1013

https://www.pelicanparts.com/More_Info/93035104700.htm?pn=930-351-047-00-OEM&catalog_description=Brake%20Disc%20%20%20%20%28Fro nt%20Left%29%20%20&SVSVSI=1013


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Old 12-31-2017, 12:49 PM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #1 (permalink)
Turbo Powered Snow Blower
 
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I purchased the aftermarket and did a track day at Thunder Hill with them. Zero issues and the brakes definitely got a workout. The aftermarket will be just fine on your car.
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Old 12-31-2017, 01:08 PM
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I purchased the aftermarket and did a track day at Thunder Hill with them. Zero issues and the brakes definitely got a workout. The aftermarket will be just fine on your car.


Thanks much! How much do you think a quality rebuild should cost? All 4 calibers and 4 new rotors. My rotors are the original ones. In nearly 40 years I think this 930 only had the calipers rebuilt once..


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Old 12-31-2017, 01:46 PM
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PMB restored my calipers. They come back looking new. But it cost more than my first car. I need to find the receipt, but I think is was around $3,200.00. You will have frozen bolts that need extraction.
My rotors were original too. You will probably find out the bearings are due as well. I think the full brake restoration was around $5,000. That's why I went with the aftermarket rotors. It was a lot of money even with non Porsche parts.

Don't forget to order the O-ring behind the spindle spacer like I did...
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Old 12-31-2017, 03:46 PM
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Originally Posted by 93097004xx View Post
Thanks much! How much do you think a quality rebuild should cost? All 4 calibers and 4 new rotors. My rotors are the original ones. In nearly 40 years I think this 930 only had the calipers rebuilt once..


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You don't need to replace the rotors unless they are worn beyond the minimum thickness, are warped, or are severely cracked (not just fine surface cracks) - to do so would be throwing money away for no gain.

The calipers do not need to be rebuilt unless the piston seals are leaking or the pistons are sticking in the bores and it's determined that the brake hoses are not the cause - again, throwing money away for no reason (other than you seem to enjoy doing so ).
Old 12-31-2017, 03:55 PM
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Replacing floating rotors OEM or aftermarket?

Quote:
Originally Posted by Rawknees'Turbo View Post
You don't need to replace the rotors unless they are worn beyond the minimum thickness, are warped, or are severely cracked (not just fine surface cracks) - to do so would be throwing money away for no gain.



The calipers do not need to be rebuilt unless the piston seals are leaking or the pistons are sticking in the bores and it's determined that the brake hoses are not the cause - again, throwing money away for no reason (other than you seem to enjoy doing so ).


Lol I enjoy making my 930 as nice drive as possible..

My rotors have substantial cracks and it noted in the mechanics reports.

Last edited by 93097004xx; 12-31-2017 at 04:07 PM..
Old 12-31-2017, 03:58 PM
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Quote:
Originally Posted by Rawknees'Turbo View Post
You don't need to replace the rotors unless they are worn beyond the minimum thickness, are warped, or are severely cracked (not just fine surface cracks) - to do so would be throwing money away for no gain.



The calipers do not need to be rebuilt unless the piston seals are leaking or the pistons are sticking in the bores and it's determined that the brake hoses are not the cause - again, throwing money away for no reason (other than you seem to enjoy doing so ).


This is what I was thinking.. My mechanic only noted the need for rotors but I値l be ready for this..




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Old 12-31-2017, 04:10 PM
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Quote:
Originally Posted by 93097004xx View Post
So I知 going to have my brakes totally rebuilt this spring along with new tires.

I知 thinking potenza re11s for tires.

I am trying to decide on the rotors as they are nearly 2XS as expensive for OEM.

https://www.pelicanparts.com/More_Info/93035104700.htm?pn=930-351-047-00-M294&catalog_description=Brake%20Disc%20%20%20%20%28Fro nt%20Left%29%20%20&SVSVSI=1013

https://www.pelicanparts.com/More_Info/93035104700.htm?pn=930-351-047-00-OEM&catalog_description=Brake%20Disc%20%20%20%20%28Fro nt%20Left%29%20%20&SVSVSI=1013


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I would like to know the dimensions(size) of these rotors, they look like those a lot whom I have on my RUF (330mm x 30mm of diameter and thickness ) and cost especially much less!
Old 01-01-2018, 03:04 AM
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Replacing floating rotors OEM or aftermarket?

Since we are on the subject one mod I do enjoy seeing on these 930s are full RSR floating rotor setup on front and rear.

I believe this would cost $35,000+ today but back in the day it would have cost much less.

I have seen a company I believe fabricating replica RSR calipers and floating rotor setup over in england I forget the cost.

I understand the original 917/RSR calipers were cast in magnesium I doubt these replicas are.

https://www.zuffenhaus.us/2016/08/16/calipers-available/

http://www.pbase.com/slidevalve911rsr/911rsr_factory_parts_suspension_73_rsr_calipers_in _a_930

Last edited by 93097004xx; 01-01-2018 at 05:07 AM..
Old 01-01-2018, 04:26 AM
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