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Z51 Drilled Rotors on the track?

Old 06-26-2011, 01:27 PM
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pit-pony
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Default Z51 Drilled Rotors on the track?

Please let me know your experience with C6 and OEM drilled Z51 rotors on the track school/lapping days.

I plan to use the car on a two day event, probably a total of no more than ten - 30 minute sessions.

I plan to use Carbotech XP10 &XP8 for pads.

Will they crack? Or should I buy solid rotors for the event?
Old 06-26-2011, 01:39 PM
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Oh boy .... here we go again!

Search is your friend.
Old 06-26-2011, 01:51 PM
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pit-pony
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I looked around. It looks like you think that the OEM drilled will do just fine. Right?
Old 06-26-2011, 02:02 PM
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John Shiels
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they should be fine but it depends on your abuse to a point. Are they new?
Old 06-26-2011, 02:14 PM
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They have been on the car since new, about 24,000mi but never tracked, they look pretty much perfect at this time on stock pads. I'll change the pads to Carbotech for the track.
Old 06-26-2011, 03:15 PM
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If you plan to do more track events, save your drilled rotors and use for street. Instead replace with DBA4000 from Tirerack @ $160 on the front axle. That way you have your nice looking rotors saved and good rotors for track.

You can run the standard Z51 rotors on track from a performance problem without problem. But the cracks will come already from first track event. Rear, I have done 20 events with my standard rotors.

PeO.
Old 06-26-2011, 03:20 PM
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Charley Hoyt
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Originally Posted by PeOR
If you plan to do more track events, save your drilled rotors and use for street. Instead replace with DBA4000 from Tirerack @ $160 on the front axle. That way you have your nice looking rotors saved and good rotors for track.

You can run the standard Z51 rotors on track from a performance problem without problem. But the cracks will come already from first track event. Rear, I have done 20 events with my standard rotors.

PeO.
You may want to look a little closer.....That is $163 each + shipping....That would be ~$325 for the front axle.
Old 06-26-2011, 03:51 PM
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Default Yes

Yes, sorry. I didn't mean to trick you..

PeO.
Old 06-26-2011, 05:14 PM
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Originally Posted by PeOR
Yes, sorry. I didn't mean to trick you..

PeO.
When I saw your post I went right over to check....at that price I would have bought a bunch
Old 06-26-2011, 08:36 PM
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Rob Willis
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Mine actually held up pretty well for quite awhile. The rears will be ok for a LONG time I'd wager, unless you cook them with the AH.
Old 06-26-2011, 09:03 PM
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Bill Dearborn
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Originally Posted by pit-pony
They have been on the car since new, about 24,000mi but never tracked, they look pretty much perfect at this time on stock pads. I'll change the pads to Carbotech for the track.
The rotors will be fine. They may get some heat checks after the school but that will be it. If you are a novice like the car is I wouldn't do anything except change the brake fluid to a good high dry temp brand and make sure the stock pads are in good shape. If they need replacing put stock or stock equivalent ones back on. You will not be pushing the car hard enough to make good use of the expensive but high wear race pads. An intermediate level driver should be able to get at least two days of hard use out of a set of new stock pads and a novice will get much more.

Bill
Old 06-27-2011, 08:56 AM
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I was throwing away perfectly good rotors until I saw the ones Chris was running! I'm not even sure you can crack one. They are 1 mm thicker on the piston side as well.

You can not buy a better rotor than the OEM for the car at any price but you can certainly spend a lot more money trying..
Old 06-27-2011, 09:24 AM
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I got a drilled set for free awhile back and left them on for track use. I figured why not use them up. This set started fine and got worse. Drove home from the track and it thumped pretty bad. It made a small gouge in the pad. If you don't care about the rotors, use them up! They should last but bring spares too. Pix:



Old 06-27-2011, 11:51 AM
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Originally Posted by Bill Dearborn
The rotors will be fine. They may get some heat checks after the school but that will be it. If you are a novice like the car is I wouldn't do anything except change the brake fluid to a good high dry temp brand and make sure the stock pads are in good shape. If they need replacing put stock or stock equivalent ones back on. You will not be pushing the car hard enough to make good use of the expensive but high wear race pads. An intermediate level driver should be able to get at least two days of hard use out of a set of new stock pads and a novice will get much more.

Bill
As a novice moving to intermediate, I agree with this.
Old 06-27-2011, 01:01 PM
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Bluefire
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These are the C6 Z51 slotted only I got from TPS Motorsports. If I recall they were ~$400. I tracked them last week and they worked flawlessly.

Old 06-27-2011, 04:24 PM
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Those cracked drilled rotors are not OEM are they?
Old 06-28-2011, 08:40 AM
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Originally Posted by pit-pony
Those cracked drilled rotors are not OEM are they?
I don't think they are from a C6 either Maybe they are off of a Porsche ...

You can save yourself some more $$ by using PFC "Z" rated pads too. When you can out drive them and those nasty OEM rotors you will be ready to go to the Nationals! Carbotech is good but much too $$$$ for now.

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To Z51 Drilled Rotors on the track?

Old 06-28-2011, 09:04 AM
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Aardwolf
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I got them from a guy with a C5 and they were in GM boxes. I hated PFZ/ZO6/HPS pads on the track. My first event I overheated them in three laps.
Old 07-02-2011, 11:36 AM
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We all consider brakes & tires as the two most important aspects of driving on the track.

My son runs Carbotech XP10 & XP8 on his C5 Z06 and they are wonderful, he'll probably move up to XP12 & XP10.

I'm not in his league so I'll stick to XP10 & 8 and my half worn stock GY tires for now on the C6.

We attended Spring Mountain a couple of years ago and they ran stock tires and rotors with a Hawk pad (not sure which one) on all their cars.
Old 07-05-2011, 06:09 AM
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Gering
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OP: I have these and like them a lot, though I have not tracked them yet. Also they are very lite. http://shop.performanceafx.com/C6-Z51-Corvette_c15.htm

Good Luck!

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