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Z Cars Prone to Pad Deposit?

"Warped brakes" are usually uneven pad deposits on the disc surface. Steel discs don't really warp, they'll crack if anything. Pad deposits can be visible, but sometimes not... They can

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Old 03-25-2014, 04:16 PM   #1 (permalink)
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Default Z Cars Prone to Pad Deposit?

"Warped brakes" are usually uneven pad deposits on the disc surface. Steel discs don't really warp, they'll crack if anything. Pad deposits can be visible, but sometimes not... They can be clear and you can't see it. I've had a lot of brake issues with my cars driving really hard with huge temperature swings with all sorts of pads. The Z has had a nasty vibration under braking so my fix... Use Carbotech race pads to clean the surface, they chew light pad deposits up just fine, and then bed my street pads back in. Beats paying to have your discs resurfaced or buying new ones. Look at that beautiful disc! Good as new.

Have you guys had pad deposit issues with you Z? My buddy with a 350Z mentioned his car was always prone to it as well.

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Old 03-25-2014, 04:22 PM   #2 (permalink)
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you mean brake dust? that's normal.
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Old 03-25-2014, 04:36 PM   #3 (permalink)
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Old 03-25-2014, 05:14 PM   #4 (permalink)
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Oh yeah...
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Old 03-25-2014, 08:43 PM   #5 (permalink)
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It's definitely due to our stock pads having a low operating temperature. I had the same issue until I switched to my Project Mu pads which have a higher temp range. Meanwhile, my parent's G37 on stock sports package pads still develops the vibration issue. It's there every time I go visit them, and I usually do the 90-5 mph braking procedure a few times to clear it for them.
Getting rid of brake deposits didn't come without a price for me though. Now I get so much more brake dust. And that's starting to deposit on my wheels.
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Old 03-26-2014, 08:23 AM   #6 (permalink)
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Quote:
Originally Posted by kenchan View Post
you mean brake dust? that's normal.
Nope, I mean pad deposits. It's when pad material transfers onto the disc surface and hardens unevenly causing the shuttering under braking. Typically it happens if you get a pad beyond its temperature range. If you get your brakes really hot and then come to a complete stop, say at a stop light, and you hold your brakes... You can leave a foot print on the disc.

Quote:
Originally Posted by DarkJak View Post
It's definitely due to our stock pads having a low operating temperature. I had the same issue until I switched to my Project Mu pads which have a higher temp range. Meanwhile, my parent's G37 on stock sports package pads still develops the vibration issue. It's there every time I go visit them, and I usually do the 90-5 mph braking procedure a few times to clear it for them.
Getting rid of brake deposits didn't come without a price for me though. Now I get so much more brake dust. And that's starting to deposit on my wheels.
I think you're right... I was going to pick up new street pads when my stocks are toast anyway. Doing the braking procedure helped you? For me it made it worse if anything. Because the pads were then just transferring more material onto the hardened deposit on the disc. You parents probably only had extremely light pad deposits. I imagine they don't drive like we do.
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Old 03-26-2014, 10:31 AM   #7 (permalink)
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i c.

yah, i dont have this problem on my akebono with stock pads. i brake on the firmer side vs normal cars, and dont sit on the brakes at a light.
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Old 03-26-2014, 10:42 AM   #8 (permalink)
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Mine vibrates like a kid after drinking way to many energy drinks. Although I am very hard on the brakes and have gotten them pretty hot in the past.

Thanks for the info!

Kenchan, you have to drive a little harder than a granny for this to happen :P jokes!

I am really just kidding, your the best I dont care what your mom says about you
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Old 03-26-2014, 11:02 AM   #9 (permalink)
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Quote:
Originally Posted by Mitco39 View Post
Mine vibrates like a kid after drinking way to many energy drinks. Although I am very hard on the brakes and have gotten them pretty hot in the past.

Thanks for the info!

Kenchan, you have to drive a little harder than a granny for this to happen :P jokes!

I am really just kidding, your the best I dont care what your mom says about you
hummmm...
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Old 03-26-2014, 01:07 PM   #10 (permalink)
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Quote:
Originally Posted by IGoFast1589 View Post
"Warped brakes" are usually uneven pad deposits on the disc surface. Steel discs don't really warp, they'll crack if anything. Pad deposits can be visible, but sometimes not... They can be clear and you can't see it. I've had a lot of brake issues with my cars driving really hard with huge temperature swings with all sorts of pads. The Z has had a nasty vibration under braking so my fix... Use Carbotech race pads to clean the surface, they chew light pad deposits up just fine, and then bed my street pads back in. Beats paying to have your discs resurfaced or buying new ones. Look at that beautiful disc! Good as new.

Have you guys had pad deposit issues with you Z? My buddy with a 350Z mentioned his car was always prone to it as well.


I have seen warped rotors before. If there is wobbling/vibrating going on I will get my rotors turned or replaced and new pads. Problem fixed.
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Old 03-26-2014, 02:18 PM   #11 (permalink)
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Quote:
Originally Posted by kenchan View Post
i c.

yah, i dont have this problem on my akebono with stock pads. i brake on the firmer side vs normal cars, and dont sit on the brakes at a light.
This is key...holding the brake pedal down after heating up your pads will inevitabley cause your pads to melt and transfer ALOT of material to the rotor. Same goes for the parking brake, don't put your parking brake up!

Your rotors won't get warped, the correct term is "glazed". Also, this is not just a problem with our cars, this is a problem you could experience on just about any car if you drive it hard enough.
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Old 03-26-2014, 02:21 PM   #12 (permalink)
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Quote:
Originally Posted by Eagle View Post
This is key...holding the brake pedal down after heating up your pads will inevitabley cause your pads to melt and transfer ALOT of material to the rotor. Same goes for the parking brake, don't put your parking brake up!

Your rotors won't get warped, the correct term is "glazed". Also, this is not just a problem with our cars, this is a problem you could experience on just about any car if you drive it hard enough.
I thought the parking brake was separate from the rear brake caliper.
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Old 03-26-2014, 02:49 PM   #13 (permalink)
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there is a drum inside...
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Old 03-26-2014, 03:15 PM   #14 (permalink)
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I had endless pad-deposit problems on my stock calipers with a few different pads (Hawk HPS, Carbotech Bobcat, Carbotech XP10's). However, I suspect that had more to do with me than the car (learning all the tricks to avoid the problem), although maybe a problem with a sticking piston was contributing as well. When I switched to CL pads my problems mostly went away (they're pretty good at cleaning other stuff, and they aren't really prone to deposit problems themselves), and then went away completely when I switched my whole caliper setup to Stillen's BBK.

Hawk's Blue pads are known to be good for scraping off pad deposits, btw. A lot of people buy a set just to use them for rotor scrubbing after other pads.
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Old 03-26-2014, 06:31 PM   #15 (permalink)
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I go through rotors like its my job, already getting a slight shake out of my Z1 2 piece rotors, Went through the stock set and and set of R1 concepts rotors already in 17k miles...we just got a new lathe at work, a pro-cut on car warthog, it will machine the rotor to the hub, that is in the near future for all 4 of my not so old rotors. I think it goes hand in hand with the brake cooling issues on this car, they get hot really fast and that is a contributing factor for sure.
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