87 t2
it needs brakes really soon and i dont want to just replace them
i wanted to upgrade but every search ive done and website ive checked nothing is the same
one site has cross drilled and slotted rear and then the front look stock and are sold individually
so im just tryin to see if there are any good packages out there

 

I use the stock blank rotors with Hawk brake pads, stainless lines and Valvoline brake fluid. The setup has been great for me and even my buddies STI brakes where fading before mine where during a couple of back road runs.


I plan on changing fluid again. I might try that Castrol stuff.

 

Stock rotors and stock pads are what I use on both cars. Never had a problem stopping or slowing down during anything. If I was going to upgrade I'd do Hawk pads though..

 

For daily I'd recommend slotted (not drilled) rotors if you can afford them and EBC Greens (low dust, good all-around daily pad). Swap em out on the weekends for the Hawk HP+ track pads.

 

Black dragon sells a cool silicon fuild i plan to try exceeds all the dots and i dont think it would go bad as fast.

 

That sounds suspiciously like DOT5 - stay FAR, FAR away from that if it is. It's slightly compressible (read, soft brakes), and doesn't absorb water (read, rusting brake lines from the inside).

-=Russ=-

 

If you are replacing the rotors, you are perfectly fine with using regular rotors. I got Brembo OEM replacement rotors from Tirerack.com for a pretty good price.
I have used EBC Greenstuff and Hawk HPS pads, and I prefer the HPS's. It could be that my EBC's were old or something, but I just think the HPS's have better feel. Which brings up my next point that I have heard the EBC greenstuffs kinda die off later in life. I also got the pads form tirerack. As mentioned earlier, you can upgrade to HP+ pads if you want for auto-x or track time.
For lines, stock ones are perfectly fine if in good shape. You can also use any DOT legal ss-braided ones, but thats up to you. For brake fluid, I just used whatever they put in last time I had my brakes flushed. It works great, so I would assume that the cheap stuff is just fine for most people.
With all of this, I have simply amazing brakes. It has as nice firm pedal with very good feel and modulation. I tried to get them to fade once, and it took a hell of a lot of work to do it. Something like 5-6 repeated stops from 110-40 before I could even tell a difference, and it still wasn't bad. So unless you plan to take your car to a race track (not just auto-x, but a real track) then you are fine.

Finally, DO NOT under any circumstances get drilled rotors. Even if someone gives them to you, you should sell them on e-bay and get something else. Even high-quality well designed rotors (for example Brembo's on a Ferrari) will crack over time. The hole introduces a structural weak point where fatigue cracks can and will start with heavy use, possibly leading to severe cracking of the rotor.

 

Thats absolutely right. EBC greens are just not up to the task of hard braking from track/hard street use. Greens get loose way to quickly. HPS are superior pads in every way except for dusting, which drives me absolutely nuts when all I need is a pad to drive every day.

 

Are any of these pads ceramic? Anyone used ceramics on an RX-7? I had them on my blazer and they made almost no dust at all.

 

Actually, my EBC pads had at least as much dust as my HPS's. Again, I seem to remember hearing that they dust more later in life as well. And mine had lived a very hard life with the p/o.

 

i run stock rotors front and rear...braided ss lines and hawk hp+ on my DD...stops fantastic...the hawks squeak a lil bit sometimes and dust a lot so you gotta clean your wheels more often but they work awesome.

 

I personally wouldn't use HP+ pads on the street since they are a bit higher friction than HPS's and will probably eat through the rotors quicker. Thats just me, though.

 

What's the point of slotted rotors on a daily driver?

Correct me if I'm wrong (definitely not a brake expert) but aren't slotted rotors just good for additional cooling? To me it just seems like they'd reduce the braking area that the pads can touch.

 

If you knew anything about engineering you would be aware that Area doesn't come into the friction equation

'Friction force = Co-effiencent of Friction x Normal force', (F=µN)

Where the co-effiencent is based on the brake pad matterial and the normal force is the force that squeezes the pads onto the disc.

Therefore slotted or drilled brakes don't effect the braking capability in anyway, they mearly help cooling.

Bigger brakes are better because they apply the friction force further away from the centre of rotation. Hence one of Newton's laws Torque = Force X distance. Increasing the distance increases the braking torque. hence better brakes.

I'm re-newing my brakes soon, and oem discs with medium/high friction pads are the way to go. Also steel lines help greatly. With the oem items for the turbo 2 being vented already, drilled and slotted are the biggest waste of effort!

 

I run AXXIS ceramic/kevlar pads on my RX7. I am very happy with them, although they are a bit dusty. My wheels are gunmetal/black though, so it doesn't really make much of a difference to me...

James

 

Yeah, I don't really know much about engineering, hence the "definitely not a brake expert" comment.

However, I'll still stick with my original question. What's the point of slotted rotors on a daily driver?

 

No point! waste of money, and in the real world present more problems than solutions on a daily driver.

The vented discs on RX7's are amazing. Not many cars have ever been fitted with such an impressive braking system.

IF slotted and or drilled were the way to go on a daily driver then I think the boffs at Mazda would have thought about it and they would be standard.

 

Ok, that's what I figured.

I've always thought that the stock FC braking system was more than adequate for 99% of the people that drive FC's, or at least the daily drivers. I'd like to stress "stock" though. By that I mean a refurbished system that doesn't have 20 year old worn out parts.

With a stopping distance of 120 feet, the stock system outperforms cars that cost 20x what the FC does with the NSX being an example (depending on year).

 

Bling

And if you knew anything about engineering, you would be aware that Area does have some effect on the stopping capability of a vehicle. Try making yourself a set of custom brake pads with an area of 1 square millimeter and see how well your car stops.

Slotting and drilling increases the bite and cleans the surface of the pad. Solid-surface vented rotors usually have the best cooling ability due to increased surface Area vs. the slotted and drilled rotors.

I agree with respect to a car that is not regularly entered in race or show events, especially when finances are an issue.

 

Except for the fact that they prevent pad glazing. Look into it.

 

[And if you knew anything about engineering, you would be aware that Area does have some effect on the stopping capability of a vehicle. Try making yourself a set of custom brake pads with an area of 1 square millimeter and see how well your car stops.

sorry my Masters degree in Mechanical Engineering not good enough for you!
1 mm square Pads would do as awesome job of stopping the cars as they plough through the disc!
The reason discs are increased in size is to reduce the pressure on pad and disc, therefore increase life!!

 

I replaced my stock discs with the Mazdatrix ones. They needed to be replaced, and I like the Mazdatrix ones. Now I just have to remove the rusted brake lines that won't come off with the SS ones...

 

You misspelled "coefficient", "material", "merely", and "renewing", you misapplied the Coulomb friction equation to brake rotor structure, and you are oblivious to the bite and glazing issues. I don't think anybody minds if you express your opinion on this forum, but attempting to represent yourself as an educated expert on this subject is rather far-fetched in my opinion.

 

yes, i have been very impressed by the stock brakes on my FC since day 1. I have melted them a few times though

 

Another advantage of slotted rotors is that they help clean out any thing that gets between the rotors and pads. Water, for instance.