Not getting those pads… @ 80mph 1 sec = 117 feet
I do like not dealing with a lot of brake dust but I think I wash my car enough that it shouldn’t be an issue. I just got PF01’s in silver and don’t feel like painting them however that’s an option in the future. Thanks for the ideas.
I had HPS on my A4. I thought it was just the atrociously shitty A4 brakes, but apparently the 1 second delay before you get any bite is normal.
I remember coming to a stop on a highway after cruising for 5+ minutes in the rain…went for the brakes…and nothing. I bet it was 1-1.5 seconds before they bit
The rs4 produces an absurd amount of dust. Not sure if its the large drilled rotors, the stock pad compound, or the fact that the fronts have 4 pads per side. Its retarded.
Still, I will likely not change for dust. The squeaking on the other hand…that’s something that could drive me nuts.
. Someone said there are good stoptech pads that could be an alternative.
I have Hawk HPS+ up front and StopTech in the back. JHM LW rotors on all four corners. Also have StopTech stainless lines on all four corners with OEM fluid.
Dust - Hawk’s produce less than OEM, a decent amount less.
StopTech - horrible for dust, I think they produce more than the OEM. I think I’m the only car owner who has rear wheels that get darker than the fronts.
Initial bite is slower than OEM but once heated they perform great I feel. Repeated hard stops are no issue.
That was my only complaint with the OEM pads. As soon summer rolled around, under light braking they would squeal pretty bad. That was with stock rotors that were rusty and grooved tho.
RS4 squeal is a bit annoying. Cold weather or cool weather…awful.
Try re-bedding them. 5 hard 65-5 stops, then drive 10 min to let them cool. My HPS pads on the A4 would always develop a squeel after a week of normal driving. Bedding them fixed it every time(for a week)
I have HPS up front, and stock rears, my rears get dustier faster than the fronts too. B7 S4 btw. While the HPS do have less initial bite, there is no delay in my braking that I keep seeing in this thread. Please do not think that your car will not stop bc you switched to HPS pads, that makes no sense to me. I have never had an incident where my car doesn’t want to stop or delays stopping, not even close, not even when it was 30 degrees and raining in Texas. In fact it was pouring rain and about 40 degrees when I took my car to a private road to bed in my brakes. They work great.
If they are ceramic, which I have no experience with, then maybe those have a delay or doesn’t want to stop right away especially when cold.
Just wanted to clear that up.
Just did that, and it worked great. First squeak free day of driving since September.
^good to hear that worked
Since you bumped this, I figure I should say that my Akebono Euro pads and JHM LW rotors have excellent initial bite. No dead time whatsoever. I also have Motul RBF600 and Goodridge SS lines, but neither of those affect initial bite
Another thing you can do to help the squeal is actually put some high temp grease on the back sides of the pads if you didn’t when installing. This helps quite a bit with aggressive pads.
I am using the EBC Yellowstuff right now and they are surprisingly good for the cost. They have much more initial bite compared to the Ferodo DS2500 I was running before and yet are pretty fade resistant. I think I paid like $280 for front and rear pads with sensors.
The RS4 (don’t know about S4) has a program in the ABS system to lightly touch the pads to the rotor off and on to clear off any rain, perhaps this is why they dust so much more?
The rotor wipe feature is on all cars with ESP 8.0. For the S4 it’s on the 07+
Maybe mine aren’t bedded in properly then. I’ll give it another shot. Some initial bite would have been useful for the rabbit that ran out in front of my car last night…
Was looking at Hawk HPS or Akebono Euro for my upcoming brake job.
However, I would be on stock rotors, as I can’t justify shelling out the cash right now for JHM LW ones. Does that change anything discussed so far?
Also, http://www.audizine.com/forum/showthread.php/485464-AR-B6-7-S4-one-set-special-in-stock-READY-TO-SHIP! just popped up on AZ, and was interested in what you guys thought of Adam’s Rotors? Seems like its basically stock rotors that have been modified? Purely for aesthetics, I like the drilled, and figure it reduces SOME rotational weight. Would it be a good “in-between” mod for OEM and JHM? Or does the modification of OEM rotors just make them less structurally integral?
how much are stock rotors vs. JHM rotors for the S4?
I know the RS4 JHM product is just abotu the same price as the stockers, but that’s because the stockers are Brembos.
I debated the rotor thing hard since you’re paying a bunch more than stock for a part you’ll wear out in 3 years, but it was worth it. Dropping that 20 lbs of front rotor weight was awesome.
Are you talking about LW rotors on your S4 or RS4?
S4. I’m pretending to be an S4 owner, harkening back to the good old days.
RS4 LW rotors only shave like 8 lbs from the front TOTAL. JHM S4 rotors shave 10lbs PER ROTOR.
Oops. B6 S4. Stock units are 70-80$ per corner front, 55$ per corner rear. JHM units are $1100 for the set of 4. Slightly less comparable than RS4 pricing, I’m afraid.
I’ve no doubt that dropping rotational mass is good, but 1100 vs 450ish for adams vs 300ish for OEM is kind of hard to justify.
I would just do the fronts personally. The savings in the rear is negligible. The fronts are 10lbs per corner.
Definitely worth having a look. $160 OEM front pair vs. 615 for JHM LW. That’s $455.
Yeah skip the rears, those are for the nutcases like 91gl lol