|
|
07-15-2018, 08:11 PM | #1 |
VIP Member
Join Date: Nov 2002
Location: Massapequa Park,NY
Posts: 1,215
Likes: 1,747
Liked 827 Times in 269 Posts
|
Brake problem
Went from no problem holding the car at 3000 rpm on line to pushing thru the beam. Four wheel wilwood disc brakes.Mopar master cylinder( don't know piston diameter).Checked the pressure at each wheel. 1000 lbs coming out of master going to front brakes. 1000 lbs at front wheels. 800 lbs at rear and it will go no higher no matter how much more pressue you build up. I didn't have an adapter to measure pressure coming out going to rears.Couldn't swap lines from front to rear on master (different sizes). 3/16 lines going to fronts and 1/4 going to rears.
__________________
1989 Camaro Iroc-Z I/SA B&B Auto Machine Shop. |
07-15-2018, 09:21 PM | #2 |
Senior Member
Join Date: Feb 2002
Location: Southeast Michigan
Posts: 892
Likes: 65
Liked 229 Times in 107 Posts
|
Re: Brake problem
Refinish the rotors and install new pads !
|
07-16-2018, 06:24 AM | #3 |
VIP Member
Join Date: Nov 2002
Location: Massapequa Park,NY
Posts: 1,215
Likes: 1,747
Liked 827 Times in 269 Posts
|
Re: Brake problem
First thing done at track........no difference
__________________
1989 Camaro Iroc-Z I/SA B&B Auto Machine Shop. |
07-16-2018, 07:34 AM | #4 |
Senior Member
Join Date: Feb 2010
Posts: 505
Likes: 7
Liked 354 Times in 83 Posts
|
Re: Brake problem
Have somebody watch the car to see if the wheels are turning or sliding. Also, go over everything you've changed recently that might affect the brakes ability to hold the car, including even things like engine and converter changes. Finally, don't hold me to this, but 1000psi (front) and 800psi (rear) doesn't sound like an overabundance of clamping force.
|
07-16-2018, 07:53 AM | #5 | |
VIP Member
Join Date: Nov 2002
Location: Massapequa Park,NY
Posts: 1,215
Likes: 1,747
Liked 827 Times in 269 Posts
|
Re: Brake problem
Quote:
__________________
1989 Camaro Iroc-Z I/SA B&B Auto Machine Shop. |
|
07-16-2018, 08:01 AM | #6 |
Senior Member
Join Date: Feb 2002
Location: Southeast Michigan
Posts: 892
Likes: 65
Liked 229 Times in 107 Posts
|
Re: Brake problem
Is it possible to bleed just the rear brakes and recheck the pressure ? Could be an air bubble .
|
|
|