Quote:
Originally Posted by eggman51
I didn't use the Hawk HPS 5 on the track based on advice here and from others. I went with Ferodo DS2500 pads front and rear. I ate through a set of fronts in 2 days and a set of rears in 4 days. I think the rears were mostly burned out by DSC, so I will switch that off - by end of day 1 I should have switched it off, I was just being (too) conservative.
I put in Castrol SRF fluid. I bled the brakes a couple of times at the track. The mechanic at the shop says the brakes were not bedded in properly and, as a result, this was causing the electronic braking system (??) to modulate the braking pressure. At least I think this is what he said, it kinda sounded odd to me, but he's a very experienced mechanic and has been spot on with other things, so - if that sounds weird - this is likely my lack of understanding of his explanation.
In my view the brakes on the Z4M are the most inadequate aspect of the car. I plan to change out the front brake system, probably to an AP Racing PRO 5000 R based kit. Engine great, handling great, transmission ok, brakes are for a road car imo.
|
It's your pads
save your money because stock brakes are more than adequate.
According to Ferdo's website, these 2500 pads fall off a cliff and begin to lose their coefficient of friction at 350* C / 650*F. You need to be using something like the 3.12 or Hawk DTC60/70 that maintains a stable and much higher level of friction all the way to 800*C/1500*F. Never used Ferdo which is why I keep drawing comparisons to Hawk, but the data they provide here seems pretty helpful.
https://www.ferodoracing.com/product...e-pads/ds3-12/
Keep us posted!
