Cracked Z1 Rear Rotor
#1
Registered User
Thread Starter
Cracked Z1 Rear Rotor
Hi All,
I had purchased a set of cross drilled, slotted rotors from Z1 motorsports 6 months ago and loved them. The drivers side rear cracked about a week ago so i need another rear. I was wondering if anyone else is having probelms with cracking rotors to see if this was a trend. I drive the car as a street car and aggresively at a local airport I have access to. Here is a link to the product.
http://www.z1motorsports.com/350_g35...oducts_id=2122
Ps: I spoke with Z1 and they offer no warranty or discount on a replacement FYI
I had purchased a set of cross drilled, slotted rotors from Z1 motorsports 6 months ago and loved them. The drivers side rear cracked about a week ago so i need another rear. I was wondering if anyone else is having probelms with cracking rotors to see if this was a trend. I drive the car as a street car and aggresively at a local airport I have access to. Here is a link to the product.
http://www.z1motorsports.com/350_g35...oducts_id=2122
Ps: I spoke with Z1 and they offer no warranty or discount on a replacement FYI
Last edited by n8939m; 04-16-2010 at 08:47 AM.
#6
Vendor - Former Vendor
iTrader: (23)
Our rotors use BPI blanks, BPI is a major OEM supplier but they have recently shifted their policy to no longer warranty cross drilled rotors. Which has not been a problem for us in the past as we sell a large number of these rotors (hundreds a year) without issue. In the 2+ years that I have handled purchasing at Z1 we've had a total of 4 350Z rotors come back to us with cracking issues. It is unfortunate in this case, but the manufacturer has made the call not to warranty them any further. Despite the excellent track record we've had with these rotors we are looking at other suppliers who will offer a warranty.
Trending Topics
#8
Registered User
iTrader: (2)
Our rotors use BPI blanks, BPI is a major OEM supplier but they have recently shifted their policy to no longer warranty cross drilled rotors. Which has not been a problem for us in the past as we sell a large number of these rotors (hundreds a year) without issue. In the 2+ years that I have handled purchasing at Z1 we've had a total of 4 350Z rotors come back to us with cracking issues. It is unfortunate in this case, but the manufacturer has made the call not to warranty them any further. Despite the excellent track record we've had with these rotors we are looking at other suppliers who will offer a warranty.
#11
Super Moderator
MY350Z.COM
MY350Z.COM
iTrader: (8)
Drilled and/or slotted stock replacemet rotors are for show, they will crack when abused.
#16
Super Moderator
MY350Z.COM
MY350Z.COM
iTrader: (8)
Nothing wrong, remember brakes suffer a lot of abuse, different pad compounds etc etc. Its not like they can control what happens to them. I would doubt any of the cracked rotors are actually defective.
#17
Registered User
iTrader: (15)
The function of drilling a rotor is only to promote weight reduction. The holes themselves offer no additional advantage as far as improved cooling. Given the fact that the rotor is so close to the hub, the actual difference in performance due to smaller rotational inertia is most likely non-perceivable. Essentially, don't bother buying drilled rotors because you get no performance benefit and you risk premature failure. As already mentioned, the drilling process weakens the material and causes micro fractures which can eventually lead to major problems.
The only fully safe and way to manufacture a drilled rotor is to actually cast it with holes in it from the start. Porsche does this and this is why they can warranty their product for track purposes. Obviously, this type of casting is much more expensive which is why their price is "slightly" higher
The only fully safe and way to manufacture a drilled rotor is to actually cast it with holes in it from the start. Porsche does this and this is why they can warranty their product for track purposes. Obviously, this type of casting is much more expensive which is why their price is "slightly" higher
Last edited by Ziggyrama; 05-17-2010 at 02:04 AM.
#19
350Z-holic
iTrader: (60)
Join Date: Jan 2006
Location: San Antonio/I miss DFW, TX
Posts: 11,204
Likes: 0
Received 29 Likes
on
20 Posts
-J
Last edited by JasonZ-YA; 05-17-2010 at 03:53 AM.