Anyone used the Hawk "street race" (DTC30) compound on the rear?
 

Wondering if anyone has experience using this on the rear of the FT86 either pairing it with HP+ in the front calipers or BBK?

Would love to hear your feedback!


To me it looks like this pad combo would shift bias rearward a bit - but my concern is would it shift it too much?


My guess is the rears on this car would operate in the MU=0.60->0.63 range and the front HP+ in a range of MU=0.55->0.57 given typical front/rear brake temps.

What is this being used for? Usually you want the more aggressive pad up front. Why do you want the DTC30 in the rear? If the HP+ is good enough in the front, it's good enough in the rear. Race pads eat rotors, make awful noises and dust like crazy. They eat rotors even faster if they're not up to temp.

I've used the Street/Race in both the front and rears, I like em. They were supposed to replace the HP+ but hawk chickened out and didn't want to lose the HP+ name recognition.

They work at the track and pair well with most track pads. The Street/Race is a better HP+ and about the only hybrid pad I'd recommend at the track.

It's essentially a track-only car, that gets driven to the track on the street.


Right now the car has Stoptech upgraded OE sized rotors and pads on it, but the pads are about done. I'm on track this Thursday evening and all-day Monday so I NEED new pads before then.


I was going to run HP+ front AND rear -however my usual supplier only had the fronts in stock. They did have a set of the Hawk street/race pads for the rear but NOT the front which is why I'm asking about this.


Then I thought about all the comments I read in the big-brake-kit threads about moving bias a bit towards the rear to improve braking and wondered if these pads would be beneficial in doing that - especially since I'm looking at adding a front BBK in the near future.

Ideally you want the same compound front and rear unless you really know what you're trying to accomplish.

Generally speaking you want the same compound front and rear unless you know exactly what you want and why you're doing it.

Why bother with a compromise pad when it is essentially a track-only car? Use the right tool for the job. In this case, if that tool has to be made by Hawk, that means the DTC-60 on both front and rear.
Unless there some crazy thing going on with your car that is different than 90% of other twins on the track...

I've read it's not uncommon for spec Miata guys to do this. Not sure why. If nobody is doing it on the 86 then it likely has no benefit.

If it's often done for some specific models, maybe for that specific model OE brake bias is not optimal, but i find it very hard to believe. Someone blindly throwing aftermarket parts on car without any clue or just by his butt dyno and highly valuable hunch - much more possible scenario. Sometimes it might be because of lacking budget. Sometimes - to work together with specific other mods (eg. aero downforce bits or staggered tire choice), but that usually doesn't count as 'common'. Still, applying something done on other cars with different mass distribution & suspension seems wrong aswell. Proper brake vendors take great care to not change brake bias for their products. I see no need to mess it up with staggered pad choice going just by guesswork.

Spec Miata is also based on nearly 30 year old specs, that they cannot change in fear of alienating all the guys who've been doing it for a long time.