[dantemcc]

Just curious to see if anyone has ever hit full braking bars on the PDR? I've checked all my PDR footage of all my track days and I've barely ever gotten to 3 bars. I'm on them pretty hard on the tracks I go to, but never have had an instance where I've hit full bars. Is it even possible? Or am I simply not braking as hard as I think I am?

[Ryephile]

It's pedal position. If you get full bars that means your pedal went to the floor, which would be bad.

It's probably the least helpful metric within PDR. Line pressure would've been more helpful, but even then it doesn't account for pad mu.

With ST-43's, my PDR shows barely 2 bars of "brakes" yet it's 1.2g of decel. It means my pedal is firm, that's all.

[dantemcc]

Have you hit the ABS yet?

[Provoste]

Originally Posted by Ryephile

It's pedal position. If you get full bars that means your pedal went to the floor, which would be bad.

It's probably the least helpful metric within PDR. Line pressure would've been more helpful, but even then it doesn't account for pad mu.

With ST-43's, my PDR shows barely 2 bars of "brakes" yet it's 1.2g of decel. It means my pedal is firm, that's all.

Yep, street pads will show more brake bars on PDR due to lower friction/ longer stroke of pedal during deceleration. Most bars I’ve been was 4/5 in the ZL1 on OE street pads. It stops great, but needs more pedal stroke due to the pads.

[JeromeS13]

Originally Posted by dantemcc

Have you hit the ABS yet?

I've gotten into ABS just a tad, and I think it still topped out at almost 4 bars. That was on the OEM fluid, and the pedal was getting a bit soft and had further travel.

[R3ctivision]

Threshold braking into the ABS for me is around 4 bars on PDR with worn OEM pads. I think normally if I brake well it's 3.5 bars or so. If I'm going easier on the brakes, 3 bars.

[mjk3888]

Originally Posted by dantemcc

Have you hit the ABS yet?

Yes. Its easier to do so when the tires aren't completely warm. At Road Atlanta it would've taken a pretty serious dileberate effort for me to hit ABS once warm. I was leaning on the stock brakes pretty heavily and they were great. Only modification was Castrol SRF fluid but it hadn't been bled in about a year.