[GriffW]

Hey guys,

I’m running into some problems that I’m currently stumped on and would love some thoughts on.

I have a 2020 SS 1LE that is at 20760 miles ish. I got it back in May of 2020 new. I’ve loved the car. My first track day will be in late October of this year. I’m sad this is the first time I’ve been able to take it out. My braking system has been stock up until this year. Ive done some hard braking events to be familiar with the capabilities of the car and driving hard here and there up until March of this year. The car felt great in general under braking, one thing I wanted was a higher and sharper bite point on the pedal but that was about it.

It was around this time I felt some reduced braking performance where my braking distance seemed to increase and my performance deeper into the pedal was sub par from where it used to be. After talking to a friend, I swapped out my fluid for Castrol SRF. I put in about 1.2L on March 9th (9.9k miles). This seemed to help. But during high speed braking (from 120) braking was a little squirrelly. Not dangerous but a little odd.

I then got some Gloc GS1s. Installed those July 18th (17.5k miles)I also flushed an additional 0.8L of fluid around this time as well but I forgot to document that. They had more confidence than the stock pads for sure especially at high speed braking, and I was quite happy. I did a little brake in procedure, nothing scientific just hard stops to where I could smell the pads.

Aug 7 I applied some brake system grease from CRC to the back of the GS1 pads. They were doing some squeaking with turns under no braking and now power. The squeaking did go away. I would expect that I probably applied more than needed. But I don’t think it was a ton.

We learned, from another car, that the GS1s were not the compound we originally thought they were and that under track use they would fade quickly and I should go back to stock or get some other compound.

I found a forum member here selling his Gloc R10s with only one track day on them. I installed those pads on Sept 11 at 20269 miles. They had a ton of material left and looked to be in good order. I did apply brake grease to these pads too. But probably a smaller amount than what was put on the GS1s. After install the pedal feel was worse than the GS1s and stock and seems to have poorer braking performance. This was discovered when I went to do my non scientific bead in procedure. Where id start braking at say 60% pressure and it would hold there for a second then the pedal would sink deeper down to say 80%. This is course led to poor braking performance. The brakes did start to make more noise, which to me was a good sign in that the new pad seems to be making better contact with this rotor resulting in more noise, and likely transferring more material.

After talking with some others I decided to flush more fluid which I did yesterday. About 0.8L. I had no change in pedal feel or really performance. I went out and did some more hard braking yesterday. More than I have done before. But did not again follow that exact procedure. I did have moments of very good performance and better pedal feel. But it never stuck.

I still feel like it could be that these pads are still not bedded on and what I am experiencing is the different pad materials, and maybe a proper bedding procedure would fix this. I also feel like maybe that grease could be affecting things but I don’t know. I also have not driven the car yet after yesterday so maybe it’s all fixed.

I am curious to hear other’s thoughts and experiences on this.