Here's my scenario and also a few of my friends. As some of you know I have a 2000 Prelude. Me and a few other club members attend lapping and auto-x days. I have Brembo "blank" rotors and AEM aftermarket pads which are a little more agressive than stock but not a true harsh track pad. In the past two years I've never had brake problems while lapping BUT most of those dates were on short, twisty tracks without many highspeed scrubbing straights.
Well 7 weeks ago we attended an event at the Shannonville raceway, full track. I hit about 190km/hr on the back straight with a stop to 100km/hr.. As the day progressed the pedal got softer and softer.. The car still stopped, pedal was firm but the travel got longer to the point where I could not heel and toe properly and lost my confidence in the brakes. Ever since I haven't regained the pedal travel firmness. I took out the pads, they were glazed and I sanded them down. Flushed the fluid. Took apart the caliper, cleaned and greased the sliding pins. Refilled the fluid. Pedal travel/firmness improved but not to the original point.
Last week went lapping again. Smaller track, never above 140km/hr. Again the brakes got progressively worse and I was done on the third session. Again, the feel/travel improved the next day but not back to where it should be.
So what are my options? Personally I don't think it's the fluid, otherwise the brakes would be bad always and not get better the next day. So I'm leaning towards the pads and maybe even the rotors. Someone theorized that the rotor itself should be perhaps sanded down lightly with an orbital sander and 200 grit paper to get rid of the grooves that might be producing "pad float" And of course sand down the pads again. Some people suggested problems with the master brake cylinder. I'm using Ford Dot3 550F high temp fluid.
Oh, and I'm not the only one experiencing those symptoms.. a few other fellow Luders have the same issues. They were also NOT using race pads so this is why I think the issue lies ie rotors/pads.
Any input/insight will be greatly appreciated.
[ July 17, 2003, 06:34 PM: Message edited by: Quick_lude ]
Well 7 weeks ago we attended an event at the Shannonville raceway, full track. I hit about 190km/hr on the back straight with a stop to 100km/hr.. As the day progressed the pedal got softer and softer.. The car still stopped, pedal was firm but the travel got longer to the point where I could not heel and toe properly and lost my confidence in the brakes. Ever since I haven't regained the pedal travel firmness. I took out the pads, they were glazed and I sanded them down. Flushed the fluid. Took apart the caliper, cleaned and greased the sliding pins. Refilled the fluid. Pedal travel/firmness improved but not to the original point.
Last week went lapping again. Smaller track, never above 140km/hr. Again the brakes got progressively worse and I was done on the third session. Again, the feel/travel improved the next day but not back to where it should be.
So what are my options? Personally I don't think it's the fluid, otherwise the brakes would be bad always and not get better the next day. So I'm leaning towards the pads and maybe even the rotors. Someone theorized that the rotor itself should be perhaps sanded down lightly with an orbital sander and 200 grit paper to get rid of the grooves that might be producing "pad float" And of course sand down the pads again. Some people suggested problems with the master brake cylinder. I'm using Ford Dot3 550F high temp fluid.
Oh, and I'm not the only one experiencing those symptoms.. a few other fellow Luders have the same issues. They were also NOT using race pads so this is why I think the issue lies ie rotors/pads.
Any input/insight will be greatly appreciated.
![canada.gif](https://bobistheoilguy.com/forums/graemlins/canada.gif)
[ July 17, 2003, 06:34 PM: Message edited by: Quick_lude ]