Brettus

iTrader: (2)

Got to try the DTC60 front DTC30 rear combo yesterday ..... Pretty happy with the outcome . Was able to outbrake pretty much all the other cars out there on the day and didn't experience any fade (20min sessions) . The rears are still getting much hotter than the fronts however so maybe a better combo would have been DTC70s front DTC30s rear.

TeamRX8

iTrader: (25)

I would propose that the DT30 rear pads are overheating and doing little/nothing at all towards braking contribution relative to DTC60 in the front and you just don't realize it.

Per the graph DTC 30 essentially fall off a cliff for Mu past 1000*F. The OE system is already heavily biased towards the front without playing the compound game. That they're running hotter doesn't seem to be registering with your sensibility. You didn't experiencd fade because of the front pad choice and it doing all the work. Otherwise I can't account for other people making poor choices.

Brettus

iTrader: (2)

I'm not sure you are understanding why I made that choice . I found that the piston areas on the Wilwood fronts I have is less than that of the stock caliper . The average radius of the pad application area is a little bit more than stock . The two things combined still mean the Wilwoods apply less braking torque relative to stock .
So , the idea behind the two different compounds was to reduce rear braking torque . If I had put 60s on the rear I would just be continually locking up the rears .
I'm not saying it's a great combination , but it did work for what I was trying to achieve.

The exercise as a whole has educated me as to the folly of upgrading the stock brakes without careful matching all of the components .

TeamRX8

iTrader: (25)

It was obvious that something wasn't adding up

Mr. Pockets

I came here to talk about brake pads and happened to see this thread at the top. How fortuitous.

I have EBC YellowStuff pads on my car. EBC gave away sets of them a few years ago and I put them on when my Hawk HP+ pads wore out. For autocross, I found the HP+ to have too much initial bite when warmed up. I overwhelmed the tires very easily with them. I liked the EBCs because they didn't have that crazy initial bite and seemed more consistent over a series of runs. I'd rather the brakes didn't change suddenly, even on a first run.

As I've spent more time at the track, I've stuck with the EBCs. Last week, though, I did my first 20min sessions. I believe that halfway through the day my pads glazed and felt pretty terrible after that. They didn't...fade, really. They just had very 'chunky' friction.

I'm replacing the rotors. I have a spare set of EBCs, but I hesitate to put them on. Need to find a higher-temp pad, I guess.

The typical event I'll have this year will feature two 20-min practice sessions, followed by one-lap autocross-format timed runs. So I sort of need something that will stand up to the abuse of a track day, but be consistent over one lap later on.

Edit: I just noticed I posted in a Series II thread. Whoops. Whatever, I don't think the distinctions between the two cars is critical in this case.

Black2010R3

iTrader: (1)

As long as your rotors are otherwise in decent condition, you can remove the buildup with a sander or maybe a wire brush and re-use the rotors, saving yourself some money.

As for pads, I like my DTC-60's, but that's for more road race like conditions. That said, I've found them to be very consistent feeling from cold to hot, they have good cold bite, shouldn't overheat for you, they're quiet and have great feel.

TotalAutoPerformance

Some what of a tricky combo to find the ideal pad for. You may have to run a more Auto X style pad and only do 1-2 hot laps followed by a cool down during your practice sessions. You could also try Hawks new compound that is out there. There is an entire thread dedicated to those HERE

Another option is to try and improve brake cooling if you are allowed to in what ever class you are running in.

We can help you with deals on pads and rotors over here at Total Automotive Performance

Steve Dallas

If HP+ had too much initial bite for you, the new Street/Race/DTC30 offering will have way too much torque for you. The new Street 5.0 compound may have some promise for your application , however. They are supposed to be somewhere between HPS and HP+. But, I have not come across anyone using those pads yet, so the jury is still out. I actually have a set of them that Hawk sent me under warranty to replace a set of Performance Ceramic pads that didn't work for me, but I have not installed them yet and probably won't until my track season pauses around the middle of June.