Quote:
Originally Posted by dsm_mikey
Any FEEDBACK after your trackday with your new brake setup?
THANKS!
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Well actually YES. First off, after inspection of the brake system, I found there were NO signs of any heat damage that you would normally see on a ZL1 1LE set up. Specifically I would basically COOK even the high temp piston boots even after just ONE hard track day on the ZL1 1LE set up.
The AP Racing set up as mentioned before DOES NOT use piston boots so that point of failure is eliminated. Secondly, I changed out to the FERODO 3.12 track pads from the 2500 compound track/street pads while I was at the track and that MAYBE took less than five minutes per side after the wheels were off (I drove to track with my street tires and changed out to MICHELIN slicks at track).
I was using anti- rattle clips and the TWO 6MM retaining bolts with the AP Racing calipers. I have since started using the quick change spring caliper brake pad retaining clip that eliminates those two bolts which makes the pad changes even quicker.
I noticed that the gray anodized finish on the AP Racing calipers showed absolutely NO SIGNS of heat damage since as color fade. They basically still look brand new. The rotors after track use were showing signs that the pads were tracking VERY evenly across the surface of the rotor. What this indicated to me was that the brake piston pressure was more consistently applied than on the ZL1 1LE set up. A part of that I think is that the AP Racing calipers while considerably lighter (10 pounds per side); are much more rigid AND that the springs that are BEHIND each of the brake pistons were doing their intended job of maintaining more consistent pressure against the brake pads.
Over the next few weeks I will post up whether or not the AP Racing set up results in FASTER lap times. I have an SCCA time trials event at ECR and an APEX time trials event at MOTOSPORTS RANCH Cresson Texas.
I had an issue my last track test day with some slicks that were heat cycled out so I couldnt determine the actual performance difference at that time.