04-24-2019, 10:23 AM | #1 |
Drives: 2019 Camaro Zl1 A10 w/ Nav & PDR Join Date: Feb 2019
Location: Bloomington, IN, USA, Planet Earth
Posts: 126
|
Just installed powerstops to 1LE and got this ...
1LE OEM rotors turned after 7000 of daily driver use
New powerstop pads properly broken in New Bridgestone Potenza all-season tires When doing HARD braking, the front end dances around - makes sound like anti-lock braking is happening while also skidding tires; Is this normal? |
04-24-2019, 10:29 AM | #2 | |
Drives: 18 ZL1 A10 Join Date: Nov 2008
Location: South East, FL
Posts: 3,024
|
Quote:
Get new ones, sounds like they took too much off. Sounds warped. Hope they are not the Z26 pads, great for the street, I wouldn't track them at all.
__________________
2017 ZL1 M6 Bog City, 2013 ZL1 M6, 2010 2SS M6
ZL1::J-E-T-S JETS JETS JETS |
|
04-24-2019, 10:37 AM | #3 |
Drives: 2019 Camaro Zl1 A10 w/ Nav & PDR Join Date: Feb 2019
Location: Bloomington, IN, USA, Planet Earth
Posts: 126
|
AW CRAP!!! I didn't know you can't turn rotors anymore?!?! GAHHHH!!!! So new rotors = problem solved likely?
|
04-24-2019, 10:46 AM | #4 | |
Drives: 18 ZL1 A10 Join Date: Nov 2008
Location: South East, FL
Posts: 3,024
|
Quote:
If lug nuts are torqued properly etc. Its most likely the rotors. New OEM rotors should do the trick.
__________________
2017 ZL1 M6 Bog City, 2013 ZL1 M6, 2010 2SS M6
ZL1::J-E-T-S JETS JETS JETS |
|
04-24-2019, 10:52 AM | #5 |
Drives: 2017 1SS 1LE Join Date: Jun 2016
Location: Detroit, MI
Posts: 1,001
|
You'll hear the ABS module making slight clicking noises and some chirping of the tires if you're getting into ABS. Does it shake under normal or moderate braking? I.e., hard but not locking up the tires? If yes, then it's probably the rotors. If no, then you're really only seeing the issue when in ABS, and if that's the case it's probably because both the brake pads and tires have been changed.
The ABS cal is built around the OE tire and brake pad, so switching to different parts that have different properties could absolutely cause the ABS system to not respond as well as it did with the OE stuff and feel like the front is dancing around more.
__________________
2017 SS 1LE.
|
04-24-2019, 11:26 AM | #6 | |
Drives: 2019 Camaro Zl1 A10 w/ Nav & PDR Join Date: Feb 2019
Location: Bloomington, IN, USA, Planet Earth
Posts: 126
|
Quote:
|
|
04-24-2019, 12:20 PM | #7 |
Account Suspended
Drives: 18 1SS/1LE Join Date: Jun 2018
Location: Missouri
Posts: 939
|
Dramatically different tire, and a less aggressive pad are going to be way different. What was your expectation for performance there? I'm not being sarcastic.
Did you do the install? simple questions even like did you torque the lugs down, criss-cross, etc etc etc |
04-24-2019, 12:26 PM | #8 |
Account Suspended
Drives: 18 1SS/1LE Join Date: Jun 2018
Location: Missouri
Posts: 939
|
|
04-24-2019, 12:35 PM | #9 |
Drives: 2018 Hyper Blue 2SS 1LE Join Date: Aug 2018
Location: Dessert
Posts: 486
|
It's going to happen when ABS activates. The tire is cycling between a sliding condition and a rolling condition. These changes in condition cause a change in input thru the suspension and produces the shaking feeling you are describing.
Changing the tire compound and brake pad friction material will change when the ABS will cycle. If you install a pad with a more agressive friction material while installing a tire with a harder(lower grip) rubber compound, you will notice that the ABS will actuate at lower stoping effort levels. Same as going to a higher grip rubber compound tire and a less agressive pad friction material will make ABS actuation come in later. The condition of the road surface will also effect this. More debris(sand, rocks, dust, rubber...) on the surface will cause the ABS to actuate earlier. A difference in road surface between left and right sides can also cause ABS actuation to change.
__________________
2018 Hyper Blue Metallic 2SS 1LE with Nav, PDR, and track alignment
1:34.20 Willow Springs Big Track |
04-24-2019, 12:36 PM | #10 | |
Drives: 2019 Camaro Zl1 A10 w/ Nav & PDR Join Date: Feb 2019
Location: Bloomington, IN, USA, Planet Earth
Posts: 126
|
Quote:
Me and my friend (who has extensive knowledge) did the install and he used the clicking torque wrench for the final tightening so I don't think that is the issue |
|
04-24-2019, 12:41 PM | #11 |
Drives: 2016 1ss camaro Join Date: Feb 2016
Location: 909
Posts: 9,812
|
lol i turned my rotors on my ss and replaced with new pads no issues here but not a 1le
__________________
16 1SS NIGHTFALL GRAY METALLIC WITH NPP #BECAUSERACECAR #SAVETHEMANUALS
|
04-24-2019, 12:56 PM | #12 | |
Drives: 2017 1SS 1LE Join Date: Jun 2016
Location: Detroit, MI
Posts: 1,001
|
Quote:
If you still want to improve it, best option would be to go after the tire. Don't have to go back to exactly OE, but the closer to the OE tire characteristics you get the better the performance should be.
__________________
2017 SS 1LE.
|
|
04-24-2019, 02:16 PM | #13 | |
Drives: 17 Camaro SS 1LE & 16 Sierra AT CC Join Date: Nov 2016
Location: Norman, OK
Posts: 2,424
|
Quote:
Huh, where did you get this info? Please share the source. You can turn rotors just fine, the stock rotors are 34mm thick and can be turned down to the 32mm discard point. As long as the shop turns the rotors correctly and doesnt go below the discard point they will be fine. Biggest thing that can impact pad and rotor performance is if the person doesnt take the time to burnish in the new pads to the rotor surface.
__________________
2019 Corvette Z06 2LZ A8 - Halltech CAI, AWE non-catted X-pipe, Mamo V2 ported TB 592rwhp, bone stock 566rwhp
2017 Camaro SS 1LE - Procharger D1SC w/ Tial 2" BOV & Race intercooler / ARH full length catless headers / Alky meth injection system - 650rwhp on conservative tune SOLD |
|
04-24-2019, 03:02 PM | #14 | |
Drives: 18 ZL1 A10 Join Date: Nov 2008
Location: South East, FL
Posts: 3,024
|
Quote:
I don't work on cars much anymore like I used to. I do some jobs here and there. The past 2 brake jobs I did, Kia Sedona and a F150, I turned the rotors and both came back in 6 months, threw on cheap rotors and it was then just fine. A car like we have, I want all the meat there, otherwise they will warp. I'm almost willing to pay for new rotors to the OP if I'm wrong, LOL
__________________
2017 ZL1 M6 Bog City, 2013 ZL1 M6, 2010 2SS M6
ZL1::J-E-T-S JETS JETS JETS |
|
|
|
Post Reply
|
Thread Tools | |
|
|