Z Nismo @ VIR

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sdktheway

sdktheway

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I'm hoping I just bottomed out here but I'm starting to wonder if it was a suspension component after some driving today noticing some different sounds going over bumps that reminded me a bit of when I had to get a strut replaced on my Subaru Ascent.

 

trackratZ

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My track pads after two days at VIR
IMG_2336.jpeg
What pads are these? Still in decent shape, handled the heat well. I normally use DTC-60s or Pagid RS14 when out tracking here in hotter CA.
 
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What pads are these? Still in decent shape, handled the heat well. I normally use DTC-60s or Pagid RS14 when out tracking here in hotter CA.
Carbotech XP12 pads which is same compound i was using at Road Atlanta a month ago, and they were totally worn down to the mounting posts on the front left side. Looks like this front brake kit will pay for itself in only 6 and half short years based on my rough calculations :LOL:
F00D8466-DDD0-49CA-AD08-356EF0C8A152_1_105_c.jpeg
 

up4speed

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Carbotech XP12 pads which is same compound i was using at Road Atlanta a month ago, and they were totally worn down to the mounting posts on the front left side. Looks like this front brake kit will pay for itself in only 6 and half short years based on my rough calculations :LOL:
F00D8466-DDD0-49CA-AD08-356EF0C8A152_1_105_c.jpeg
I ordered Carbotechs for my next track day (installing in the next few days). I don't know if I have really bad luck or not, but the first set they sent had really badly mangled spring clips. they sent me a new set, and the clip on one pad was a little distorted again. I decided to just straighten it the best I can before I install them. I'm wondering why they keep getting damaged during shipment?!? They should probably improve the packaging. These pads look homemade, lol. Hopefully I'm happy with the performance of them.

When you put the pads on the stock calipers, did you use the stock clip on insulator / anti rattle hardware, that's on the stock pads? Does it fit on the Carbotechs properly?

Also, it seems like the rears look really thin from new. The pad is only slightly thicker than the backing plate. That's when I would typically change the pads if I'm doing a track day! LOL
 
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sdktheway

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I ordered Carbotechs for my next track day (installing in the next few days). I don't know if I have really bad luck or not, but the first set they sent had really badly mangled spring clips. they sent me a new set, and the clip on one pad was a little distorted again. I decided to just straighten it the best I can before I install them. I'm wondering why they keep getting damaged during shipment?!? They should probably improve the packaging. These pads look homemade, lol. Hopefully I'm happy with the performance of them.

When you put the pads on the stock calipers, did you use the stock clip on insulator / anti rattle hardware, that's on the stock pads? Does it fit on the Carbotechs properly?

Also, it seems like the rears look really thin from new. The pad is only slightly thicker than the backing plate. That's when I would typically change the pads if I'm doing a track day! LOL
Yup I used the stock one that came off the back of some oem pads, sometimes they fit a little snugger than others, sometimes they are pretty loose. You can kind of bend the end a bit to help it stay tighter. I also got a set of pads from them where one had a bent clip unfortunately
 

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Yup I used the stock one that came off the back of some oem pads, sometimes they fit a little snugger than others, sometimes they are pretty loose. You can kind of bend the end a bit to help it stay tighter. I also got a set of pads from them where one had a bent clip unfortunately
Did the rears seem thin to you? I don't know how thick the stock rears are (I never changed them yet, this will be the first time).
They are about the thickness of the backing. I don't remember ever having pads that thin and I've changed several dozen brake pad sets in my life.

Here are pics of the rears compared to the fronts, along with another pic that shows a pencil line of where Carbotech says it's the wear limit (3.9mm). It doesn't look like they are giving much usable pad material. are these the same as the rear pads that you received?

IMG_1792.jpg


IMG_1793.jpg
 
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sdktheway

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If your pads are equal to or less than then backing plate groups like PCA - which are pretty strict- will fail inspection.
I run them down to the bone
Good luck inspecting them on this car anyways 😂 it's so damn hard to check the front pad thickness without just taking the whole dang wheel off with these akebonos!
Did the rears seem thin to you? I don't know how thick the stock rears are (I never changed them yet, this will be the first time).
They are about the thickness of the backing. I don't remember ever having pads that thin and I've changed several dozen brake pad sets in my life.

Here are pics of the rears compared to the fronts, along with another pic that shows a pencil line of where Carbotech says it's the wear limit (3.9mm). It doesn't look like they are giving much usable pad material. are these the same as the rear pads that you received?

IMG_1792.jpg


IMG_1793.jpg
yeah honestly that looks about right to me. I have a new set of 1521 rears coming in soon so I will send a picture for comparison but they are teeny tiny compared to the fronts!
 

up4speed

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If your pads are equal to or less than then backing plate groups like PCA - which are pretty strict- will fail inspection.
I run them down to the bone
Well that was my concern. As you can see in the photo, the rear pads would almost fail when brand new!
I never had a track or organizer do any inspection further than my own (which I am very careful) but I wondered how they would do it on this car where the pads don’t show? Would they want to take the wheels off?
I can see them by using an inspection camera. I wonder if I should start taking it to the track.
 
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sdktheway

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These were my rear pads compared to my front after two days at VIR. Based on my rough calculations this front brake kit should pay for itself in only 6 1/2 years if I do six hpde weekends a year! 😆
IMG_2378.jpeg
 
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sdktheway

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Well that was my concern. As you can see in the photo, the rear pads would almost fail when brand new!
I never had a track or organizer do any inspection further than my own (which I am very careful) but I wondered how they would do it on this car where the pads don’t show? Would they want to take the wheels off?
I can see them by using an inspection camera. I wonder if I should start taking it to the track.
Yeah my organization has never inspected my car that closely but I do make sure to get it inspected beforehand by certified mechanic who fills out their tech inspection form. I feel like that rule would only be applicable to the front anyways because surely there are other cars with small rear brakes that aren't very thick out there
 

up4speed

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Good luck inspecting them on this car anyways 😂 it's so damn hard to check the front pad thickness without just taking the whole dang wheel off with these akebonos!

yeah honestly that looks about right to me. I have a new set of 1521 rears coming in soon so I will send a picture for comparison but they are teeny tiny compared to the fronts!
Ha, I replied before seeing your response. We were both thinking the same thing.
But as you said, the rears are much smaller than the fronts, but they also put much less pad material on them. And to make matters worse, they are not just bonded, they are also riveted, so if you wear them more than 3.9mm of pad remaining, you will risk gouging the rotor with the rivets.
 

up4speed

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These were my rear pads compared to my front after two days at VIR. Based on my rough calculations this front brake kit should pay for itself in only 6 1/2 years if I do six hpde weekends a year! 😆
IMG_2378.jpeg
How come your worn pads look like they have the same amount of material (and maybe even more than) than my new pads, lol.
 
 






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