09-13-2019, 01:06 PM | #1 |
Drives: 2017 ZL1 6MT Join Date: Dec 2018
Location: Louisiana
Posts: 43
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Pad Change
Got my ZL1 teched before next track day and was recommended to change my pads. New set of OEM pads I got measures 0.375" pad thickness both front and rear. Fronts on the car are currently around 0.265" and rears are around 0.250."
Was he maybe a little over-zealous with that recommendation and should I hold on to these a while longer before changing or is this around when they should be swapped out? Is there a magic number on thickness remaining? Thanks for the input guys. |
09-13-2019, 02:07 PM | #2 |
Drives: 2019 ZL1 Crush Join Date: Jan 2019
Location: Colorado Springs
Posts: 564
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you are fine with what you have. Depending on how hard you drive, you will need to replace them after.
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09-13-2019, 02:48 PM | #3 |
Drives: 2018 Camaro ZL1 M6 Join Date: Jul 2017
Location: Boston
Posts: 135
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I wouldn't track them if they're below .2" from what I've read. You're probably fine for one more track day though. Just keep an eye on them.
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09-13-2019, 03:02 PM | #4 | |
aka BeastZL1
Drives: 2019 Camaro ZL1 1LE, 2004 Cobra Join Date: Dec 2017
Location: NC
Posts: 1,127
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Quote:
This is good advice. .2" or 5mm is a little more than 1/2 gone. Factory front and rear pads have 9 mm of pad material. Just make sure you are measuring just the friction material and do not include the back plate in the measurement.
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09-13-2019, 05:30 PM | #5 |
2019 ZL1 1LE MY GOON
Drives: 1980 Z28 Big Red. Join Date: Dec 2018
Location: Stoney Creek
Posts: 2,061
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I think there is a minimum amount of pad material required to track the car.
I could be wrong. Please correct me if I am. |
09-16-2019, 07:19 AM | #6 |
Drives: 2019 ZL-1, Shadow Gray, Sold Join Date: Jan 2019
Location: Fredericksburg, VA
Posts: 1,390
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Never had anyone tell me about "minimum" thickness during a track day tech inspection. I would absolutely agree 1/2 pad material gone is a good rule of thumb for track events. You can always use them later for DD or not.
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09-16-2019, 07:39 AM | #7 |
Drives: 2019 Camaro ZL1 (manual) Join Date: Dec 2018
Location: GA
Posts: 44
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How are the OEM pads on track days? Any issues with fade or performance for say a 20 minute track session?
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09-16-2019, 08:42 AM | #8 | |
Drives: 2018 ZL1/1LE Red Join Date: Oct 2013
Location: Cumming, GA
Posts: 321
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Quote:
I picked this up from Amazon and they are quite accurate. (although wish there was a 7mm in the set) ABN Brake Lining Thickness SAE & Metric Gauge 8 Piece Tool Set
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BobR
2018 ZL1 1LE (Red) - New Dec 2017 2015 ViperGT (Gunmetal w/Red stripes) 2013 ZR1 Anniversary 2014 ZL1 - BrightYellow, 6sp 2011 Porsche GT3RS - White w/red graphics 2009 Porsche C2S 2001 Ferrari 360 Last edited by kaamacat; 09-16-2019 at 10:12 AM. Reason: added line item |
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09-16-2019, 11:42 AM | #9 | |
Drives: 2019 Camaro ZL1 (manual) Join Date: Dec 2018
Location: GA
Posts: 44
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Quote:
I was just at Road Atlanta yesterday doing some ride alongs with a buddy in his C7 Grand Sport. Just now starting to get my feet wet in the track scene but after yesterday I'm definitely going to have to get out there next season for some sessions. Maybe I'll see ya there next year. |
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09-16-2019, 11:59 AM | #10 |
Drives: 2019 ZL-1, Shadow Gray, Sold Join Date: Jan 2019
Location: Fredericksburg, VA
Posts: 1,390
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OEM pads are very good. Been using them for 4 track days. Hopefully have 1 or 2 left in them.
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09-16-2019, 12:38 PM | #11 |
Drives: 2018 Hyper Blue ZL1 1LE Join Date: Dec 2018
Location: CA
Posts: 1,365
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OEM pads are great track pads, I've tried both OEM and Ferodo DS 1.11. I'm experienced and have run pretty fast laps in my first few events in this car, not turning as well as I want yet but I can at least say I brake late from very high speeds on the straights and put the pads through their paces. The one thing I'm concerned about with the DS 1.11 vs. OEM is the heat they generate and effect on rotors, as well as turning the calipers brown.
I think the 2 fastest track drivers in this community based on posted lap times, both ZL1 1LE in CA, are still running OEM with no complaints. Randy Pobst was on stock pads when he did 1:34 at Laguna Seca. And wasn't the 1LE on stock pads when it went 7:16 the Nurbugring? If yes, that's the ultimate brake pad torture test IMO, serious late braking from 140+ repeatedly for over 7 minutes with no sign of fade. |
09-17-2019, 07:06 PM | #12 |
Drives: 2017 ZL1 6MT Join Date: Dec 2018
Location: Louisiana
Posts: 43
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+1 for stock pads. If you're in a novice or intermediate group HPDE like me, you shouldn't have any issues with stock pads. I've been pretty impressed with previous times on track in high 90's ambient temp here in south Louisiana and didn't have any signs of fade in 20 minute sessions even after multiple 145+ down to 60 off main straight. Plus they're relatively cost effective.
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09-18-2019, 10:50 AM | #13 |
Drives: 2017 Red Hot ZL1 Join Date: May 2015
Location: Metro Detroit
Posts: 216
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The stock pads are very good. I drive my car pretty hard and have run in the advanced group for many years now. I decided to upgrade my pads as I was getting the stock ones pretty warm. I upgraded to Hawk DTC-70 on all four corners and I'm very happy with them. I would also agree that novice and intermediate would probably be fine on stock pads. I also run a track that's pretty hard on the brakes for our heavy cars so they weighed in on my decision as well.
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09-18-2019, 10:53 AM | #14 |
Drives: 2016 1ss camaro Join Date: Feb 2016
Location: 909
Posts: 9,917
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or just use em and bring the new ones to the track if you need to swap em out up to you
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