unfortunately the track day today won't happen due to rain. we are really in the glidepath at the moment. i will be at BHF at the next available date after we dry out.

i dynoed in Green Bay sunday (90 miles each way) and the 800s continue to log more miles. so far, on the street, no issues of any kind.

hc

 

Fair enough. You both have caught me in an over simplified, and arguably, incorrect statement. By definition 2 piece rotors are not hard mounted, rather they are attached to their hat via some form of fastener which, I suppose suggests they "float". But as you have pointed out (and I tried to earlier) vibrations should not be attributed to the fact that the rotors are "floating".

In my experience EBC Yellows suck. I admit my experience with these pads goes back 7yrs, but the pad life is miserable and the braking force is marginal. I didn't notice whether they were particularly succeptable to over heating however. I went through a new set of fronts in 1 day at Thunderhill.

 

We've heard similar stories of your intended track trials of these brakes in May, we heard it in June, we heard the promise in July, now we hear it again in August.

I've lost track as to the point of you testing the brakes ... clearly your testing to date has produced dubious results. Not sure your testing even matters. I AM sure, however, that you got your brakes, they work for you and you made out pretty good in the endeavor.

 

We've heard similar stories of your intended track trials of these brakes in May, we heard it in June, we heard the promise in July, now we hear it again in August.

I've lost track as to the point of you testing the brakes ... clearly your testing to date has produced dubious results. Not sure your testing even matters. I AM sure, however, that you got your brakes, they work for you .

 

Jeff, your thread edit didnt work too well, instead you double posted with a slight change.

What do you want him to do, change the weather?

 

I've lost track as to the point of your whining.

If you don't like it, buy your own ******* brakes, test them yourself, and report back.

 

Yeah, that was a mistake, I really didn't mean to suggest that he is materially better off as a result of this process. Sorry Howard.


No, just bored with the excuses for further delays in testing. I admit that I'm beating a dead horse here...

I'm done.

 

Anyone else have some real driving/stopping feedback?

We've seen enough pics of these. How about driving impressions - preferably at the limit or on track? Thanks.

 

Still waiting for my revised kit to arrive. I'm going to ring RB and see if they have any updates for us.

-ch

 

I expect that mine will be shipping out within the next couple of days

 

Paul, don't know if it is the pads or the rotors - but, I'm having the same problem, and it started after our track day at Laguna Seca. Now that I've got another car to drive the rotors are going in for a re-surfacing and I'll know if there warped.

Matt

 

Thanks Matt, I think I need to give up on the panacea of a streetable track pad. I've got some Hawk blues I'll try at THill on the 13th.


Paul

 

Have any of you sought feedback from RB regarding what you observed?

 

Spoke to the rep at RB this morning, and they're tweaking the calipers a bit to make for more room for brake pads.

 

Really... I wish I'd know, I put the shims on my pads because they were squeaking like crazy (I thought ET700 was barely supposed to) and now they still squeak a bit everytime I come to a light but the pad is touching the rotor and I guess keeping it heated so I have surfacing cracking on both of my front rotors...

 

I would like to see a good digital photo of these cracks.

 

I will tomorrow but I havn't been able to yet. They arent deep but still it bugs me (as I havn't even been on the track yet!)

 

I second the interest in pics of this.....

I sent mine back two weeks ago to get new rotor hats (damaged during shipping), new calipers (exchanged my green for red) and new brake lines (longer obviously). I thought it would be a quick turn around but haven't heard anything yet. I opted for the partial refund fwiw, and haven't seen a refund or heard of re-shipping my parts.....

 

Pads will always touch the rotors, but you should be able to spin the wheel with little force. Is it what they call surface checking (or chequing) you are seeing?

Still waiting on mine as well.

 

Here we go, right front two cracks:





Its hard to see but the crack does go beyond the rotor surface, where the pad touches it, onto the mounting part. I didn't have my camera when it was on a lift but there is cracking on the inside of the rotors as well but none on the outside of the drivers side rotor. And the rears are fine. This is annoying.

 

hmm... Thats not good..

 

aoc007, have you called rb and talked to them about it?

 

It’s still a early, but here is my initial impressions:
I installed my kit 1.5 weeks ago with the ET700 pads in the front w/o shims and used hawk HP+ pads in the rear. To date, I’ve put on about 200 street miles and 1.5hrs of track time.

A little background for the basis of my opinions:
With the stock brakes I ran HP+ all around for street/autoX. I consider them a great pads in terms of torque and feel…if you can tolerate the dust and squealing. Woefully inadequate for track duty. About one hot lap and they are toast. For the track I ran N-Tech competition pads. They are a bit high in torque and wear for my liking, but they were more consistent and withstood higher temps then anything else I tried.

The ET700 were really green out of the box. It took two hard cycles for them to start biting. After bed-in they the RB setup feels pretty much like stock on the street. The ET700 feels like has a little less bite then the HP+. I haven’t noticed any dust with street use nor have I heard a squeak out of them.

It was raining on my track day, so I didn’t get the opportunity to push the car/brakes to the limit. There was no interference between the stock upright and the rotor after clearancing as described in this post: https://www.rx7club.com/showpost.php...&postcount=891
Even after two bed-in cycles the ET700’s felt a little green the first session, but improved there after. The roads were damp when I performed the bed-in, so perhaps I didn’t get them up to full temp.
In subsequent sessions, the first hot lap felt the best and I had to adjust braking to account for fade by the 4-5th lap. The pads hung on from there and didn't get any worse. They would have steadily gone away at full tilt on a dry track. Front to rear bias is difficult to judge with the wet track, but it felt good.
The pads are currently .62" & .63" thick vs. .65 new, so the wear is looking good with only .01 taper. There is still faint crosshatching on the front rotors, so the pads are defiantly rotor friendly. I had expected them to be a more aggressive, but all in all, I think they are a pretty good aggressive street, autoX, or even novice track pad. I’ll be trying out the ET800’s shortly.

Aoc, have you fed this info back to RB? I’ve put mine though as much hell as I can condense into 10 days and haven’t seen the issues you describe. RB has been extremely responsive to the feedback I've given so far.

 

I wonder if this is due to being drilled and slotted instead of only slotted.

 

Even under light braking coming up to a stop sign you get no squeaking? I think I recall mine not squeaking at first and then starting to, please keep reporting back as I will get rid of these pads if there's no way to stop the squeaking or break them in better, I've been doing full braking on the freeway from 150-60 and havn't noticed a change yet. Also which type of rotors do you have?

Hopefully I'll get around to calling RB tomorrow but I fell off my motorcycle a week ago and broke my collar bone and havn't felt like doing much since then...

-Andy