Unusual Brake Pad Wear Pattern
12-10-2007, 09:53 PM
#1
Melting Slicks
Thread Starter
Unusual Brake Pad Wear Pattern
I noticed a long pedal after a heavy trashing at Laguna Seca. It was on the inboard side. I wonder what type of material the backing plate is made of? This is a PFC 80 pad:[IMG]
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Last edited by Sidney004; 12-10-2007 at 09:57 PM.
12-11-2007, 12:31 AM
#3
Safety Car
That bent ear got hung up on something, and then the center buckled.
check the bracket to make sure nothing is in there prevent the pad from sliding.
For the street, I would grease the ears slightly where they meet the caliper bracket, but for the track, the grease would melt away and cause problems. So I normally run them dry.
Also, sometimes the C4 calipers bend open slightly, although it never happend to me, I have seen pictures.
I didn't know PF still made 80's for our cars.
check the bracket to make sure nothing is in there prevent the pad from sliding.
For the street, I would grease the ears slightly where they meet the caliper bracket, but for the track, the grease would melt away and cause problems. So I normally run them dry.
Also, sometimes the C4 calipers bend open slightly, although it never happend to me, I have seen pictures.
I didn't know PF still made 80's for our cars.
WOW!!!!!!!! pad material must be Kryptonite!
12-11-2007, 01:54 AM
#5
Melting Slicks
Thread Starter
That bent ear got hung up on something, and then the center buckled.
check the bracket to make sure nothing is in there prevent the pad from sliding.
For the street, I would grease the ears slightly where they meet the caliper bracket, but for the track, the grease would melt away and cause problems. So I normally run them dry.
Also, sometimes the C4 calipers bend open slightly, although it never happend to me, I have seen pictures.
I didn't know PF still made 80's for our cars.
check the bracket to make sure nothing is in there prevent the pad from sliding.
For the street, I would grease the ears slightly where they meet the caliper bracket, but for the track, the grease would melt away and cause problems. So I normally run them dry.
Also, sometimes the C4 calipers bend open slightly, although it never happend to me, I have seen pictures.
I didn't know PF still made 80's for our cars.
12-11-2007, 03:18 AM
#6
Drifting
Member Since: Feb 2006
Location: CV ca
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St. Jude Donor '11-'12-'13
After this brake problem, and the power steering going away, the fun wasn't over yet.
There was still the 150 or so miles, on what was left of the slick racing tires, in the rain storm.
Even though the drive home was like driving on greased glass......I don't think the smile ever left Sidney's face, from the day's event.
It was alot of fun riding with Sidney.
Getting to see the look of horror on the faces of Z06, GT3 drivers as they realize it's an old C4 wearing them down.
Then to have to wave a car by, with 1/2 the HP, and not being able to stay with him after that.
There was still the 150 or so miles, on what was left of the slick racing tires, in the rain storm.
Even though the drive home was like driving on greased glass......I don't think the smile ever left Sidney's face, from the day's event.
It was alot of fun riding with Sidney.
Getting to see the look of horror on the faces of Z06, GT3 drivers as they realize it's an old C4 wearing them down.
Then to have to wave a car by, with 1/2 the HP, and not being able to stay with him after that.
12-11-2007, 08:43 AM
#7
Le Mans Master
A friend of mine had that exact same failure on his stock C5 after a day of autocrossing. Turns out the ear had somehow hung up when he was changing out to his race pads and the backing plate bent when he started braking hard. So, I don't think you need to worry about exotic failure modes or a lack of confidence in the pads you're running.
HTH, and have a good one,
Mike
HTH, and have a good one,
Mike
