Something's wrong with my Rotora BBK...
#1
Something's wrong with my Rotora BBK...
Earlier this year during the summer, I noticed that under maximum braking my car shot to the right and I had to compensate which was a royal pain in the ass.
I asked a few seasoned racers why it was doing that, and they all thought that perhaps my suspension wasn't properly setup. It was possible, since my car has not been corner weighted and honestly, it's virtually impossible to get a completely even stance on coilovers considering they are infinitely adjustable. So I assumed that perhaps the right front suspension was just sitting a bit higher than the left side and under maximum braking and the subsequent suspension compression, the height difference was sending the car to the right.
Well, just the other day, it was cold as hell out and I was driving somewhere. I came to a red light, waited for a bit (brakes were still completely cold at this point... about 10 degrees out) then got the green light.
When I let go of the brake pedal, I heard and felt the pads releasing from the rotors. Well, it's cold, they stick, so it's okay. But what was NOT okay was that the right side brake was disengaging noticeably later than the left side. I'm not talking several seconds, but there's a difference enough to realize that the brakes aren't disengaging simultaneously. This leads me to assume that they aren't engaging simultaneously, either, and perhaps the right side is getting more pressure and for longer. That would also explain why the brake pads on the right side were down to the backplate, whereas the left side still had a tiny bit of life left, when I replaced them a while back.
WTF!?
So I talked to a couple of my friends and they said it's because of the difference in brake line lengths. Okay, that makes sense. But THIS big of a difference? I haven't touched the master cylinder or anything else besides the rotors, calipers and the last bit of brake lines, replaced with the Rotora-supplied SS lines.
Anybody else experiencing the same problem, whether or not you have a BBK?
I asked a few seasoned racers why it was doing that, and they all thought that perhaps my suspension wasn't properly setup. It was possible, since my car has not been corner weighted and honestly, it's virtually impossible to get a completely even stance on coilovers considering they are infinitely adjustable. So I assumed that perhaps the right front suspension was just sitting a bit higher than the left side and under maximum braking and the subsequent suspension compression, the height difference was sending the car to the right.
Well, just the other day, it was cold as hell out and I was driving somewhere. I came to a red light, waited for a bit (brakes were still completely cold at this point... about 10 degrees out) then got the green light.
When I let go of the brake pedal, I heard and felt the pads releasing from the rotors. Well, it's cold, they stick, so it's okay. But what was NOT okay was that the right side brake was disengaging noticeably later than the left side. I'm not talking several seconds, but there's a difference enough to realize that the brakes aren't disengaging simultaneously. This leads me to assume that they aren't engaging simultaneously, either, and perhaps the right side is getting more pressure and for longer. That would also explain why the brake pads on the right side were down to the backplate, whereas the left side still had a tiny bit of life left, when I replaced them a while back.
WTF!?
So I talked to a couple of my friends and they said it's because of the difference in brake line lengths. Okay, that makes sense. But THIS big of a difference? I haven't touched the master cylinder or anything else besides the rotors, calipers and the last bit of brake lines, replaced with the Rotora-supplied SS lines.
Anybody else experiencing the same problem, whether or not you have a BBK?
#4
Senior Moderator
Sounds like its being cause by 1 getting slightly more pressure than teh other? Try rebleeding the system to see if that helps
#6
Senior Moderator
cant hurt
#7
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how's ur BBK in the winter? still stopping good?
mine has excellent braking except the warped rotors...LOL
what u have told hte problem happens on the 03+ accord, which one side of the pad eats up faster than the other side, but dunno the problem as well, but my mech said it happens on most newer accords
mine has excellent braking except the warped rotors...LOL
what u have told hte problem happens on the 03+ accord, which one side of the pad eats up faster than the other side, but dunno the problem as well, but my mech said it happens on most newer accords
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#9
Originally Posted by Mr Hyde
Could one of the calipers be a little sticky?
Check the pads on that side, and see if they are more worn than the others.
Check the pads on that side, and see if they are more worn than the others.
Sam --
You warped your gigantic rotors? How!?
#10
I also noticed that last year, scared the hell outta me. I actually was changing lanes going about 80mph and once I was in the lane the car in front of me slowed down so I braked pretty hard and the car pulled to the right. After that I just chilled with the hard braking and speeding. I also thought about bleeding the brakes.
#11
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Originally Posted by Pure Adrenaline
Yeah, that's probably a good idea. I'll probably do that once I'm home next week.
Sam --
You warped your gigantic rotors? How!?
Sam --
You warped your gigantic rotors? How!?
i asked my mech about ur problem he said it's more like the caliper than the brake lines, also check the poportion valve that distribute the brake force, u might need a new one if it's not working well
#12
Originally Posted by samkws
they are warped on the 4th track day of the season and after i changed the new pads, too bad
i asked my mech about ur problem he said it's more like the caliper than the brake lines, also check the poportion valve that distribute the brake force, u might need a new one if it's not working well
i asked my mech about ur problem he said it's more like the caliper than the brake lines, also check the poportion valve that distribute the brake force, u might need a new one if it's not working well
Like you and Hyde said, it's more likely the caliper/pad than the brake lines and pressure. Also, I just remembered that I didn't grease the pins that hold the pads in place, so that might be causing it, too. Regardless, I'm gonna take everything apart once I'm home.
And umm... your calipers might be better than mine, but my rotors > your rotors. No signs of warping at all.
#13
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Originally Posted by Pure Adrenaline
And umm... your calipers might be better than mine, but my rotors > your rotors. No signs of warping at all.
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