I was afraid someone would ask for pics...

I'll see what I can do...:)

My '99 FD Type RS brakes are installed with EBC Green Stuff pads fr/rr...

Pedal feel is excellent...tactile and high up on the pedal travel...

Calipers seem to clamp down harder on the rotors, and the EBC Green Stuff''s 0.48 friction mu hauls the car down--255/40-17 Yoko AVS I's mounted on 9 x 17 SSR IA2--even with dead cold brake rotors....

So far I'm happy with the Type RS brakes...

Ultimate test will be at Putnam Park Road Course (26, 27, 28-April-2002) for the CIR PCA drivers ed event...I'll be swapping out the EBC Green Stuffs with Porterfield R4E (endurance racing compound), and the Yoko AVS I's will be swapped out with Hoosier R3S03s on SSR Competitions (245/45-17 on 8.5 x 17s fr and 275/40-17 on 9.5 x 17s rr).

How much are a set of 99 FD brakes, do they out perform the earlier set up.Are there any changes that have to be done to the stock brake systems to use the 99 FD brakes.

There's a parts list on this thread...

https://www.rx7club.com/forum/showth...threadid=51895

No major changes are required to run the '99 Type RS brakes...

Bumping this thread back up to the top...

Why don't you bump it back up to the top with some pictures... :)

Jim,

It's easy to visualize...just stare at the US spec FD brakes within stock 16-inch wheels, but don't look at the tires sidewalls...just the brakes inside the 16-inch wheels...

The clearance inside 17-inch wheels with the Type RS brakes is just about the same...tight...

Now that the brakes are in proportion to the wheel size, it's really hard to tell they've been upgraded!

I almost need to do a side-by-side comparison of US spec brakes in 16-inch wheels, and the Type RS brakes in 17-inch wheels...

They feel slightly better than US spec brakes on the road, and you get to keep the hand brake (cool convenience)...

I'll track test the setup next weekend at Putnam Park...

I'm expecting the brake pedal to be rock hard to the end of EVERY 25-minute session!!!

Men are very visual animals. We want to look and see.

The above description would be fine for the women, however.:D

Don't expect an exciting visual. The calipers, front and rear, are identical in appearance as the US Spec brakes. The front rotors are thicker and the rear rotors are larger in diameter. No difference oitherwise.

Paul
www.aimtuning.com

Type RS fr/rr rotors are 12.4 inches in diameter. The front RS rotors are 1.25 inches thick. The rear RS rotors are the same thickness as US spec rear rotors. Both front and rear calipers are larger, with the fronts being thicker as well, to accommodate the thicker front rotors. The front RS calipers have larger lower pistons than the upper pistons.

As I mentioned above, the Type RS brakes are hard to pick out visually as a brake upgrade when they're mounted inside my 17-inch SSR Integral A2s...which is fine with me, since I like the Sleeper look (thus the username "SleepR1"):)

Hard line question
 

SleepR1, how did you get around the hard brake line???Were you able to move it? bend it? modify or adapt another line?
I am seriously wanting to do the RS brake upgrade but don't like the idea if the hard brake line has to be bent or modified.
Would you please inform us how you solve this??
thanks

porsche calipers on FD??
 

I'm thinking of buying porsche 911 turbo calipers from my friend off his FD. Does anyone else on this forum have these brakes also? If so, are they really that much better than FD brakes? Also, for those of you who are running this conversion, what type of pads are you using along with these brakes or which ones are good?

If you're buying a complete kit with the "big red" calipers and upgraded rotors with seperate hats then go for it. There's a night and day difference, especially on the track. If you're using the calipers on stock-sized rotors, then forget it and stick with the stock rotors. Come to think of it, I don't think the 911TT caliper would even work with the stock rotors. For pads, Pagids are usually pretty good. :-)
Michel

One question to ask about the J-spec calipers is this ... which piston is bigger? My thought is about creating a stronger force on the leading edge for additional braking force .... just fishing for more details on that.

I've been wanting to do the same....
been looking for them on ebay..see them once in awhile...

mov.it makes a kit with the big red's

Joseph,

Brian and Tim of Mazdaspeed Motorsports Development, and as verified by Sylvain Tremblay of Speedsource (phone call), said the US spec hardlines WILL work WITHOUT any issues.

According to Paul D'Anglo who installed the '99 Rx7 Type RS brakes on my FD there were no issues, save for one. Paul was loosening one of the nuts on the right-front hardline, which had "frozen" on to the old stainless steel flex line. Paul was able to free the nut, but the hardline's nut is now seriously "gaffed", and the entire line will need to be replaced when the caliper needs to be removed for a rebuild at the end of the "racing" season. In summary there are no hardline issues.

Spyfish,

Your guess is correct. The lower piston is the larger piston, which is the piston that does the first bit of stopping (the leading edge as you call it):)

The only criticism I have of any front big brake kit, is the huge front brake bias you'll have. If you have the budget, go for a 4-wheel brake upgrade, preferably one that has a provision for a parking brake.

The 4-wheel M2 kit is $7K and has an e-brake system. The 4-wheel Valspeeds are more than the M2 kits, but have NO e-brake provision.

The '99 FD RX7 Type RS brakes were the best solution for me. MUCH less than either of the above 4-wheel brake upgrade kits, and since the Type RS brakes are STOCK Mazda pieces, the e-brake works just like the US spec e-brake does, which is wonderful convenience for those of us who use our FDs on a daily basis:)

The '99 FD Type RS's braking performance on the road is on a much higher level than the US spec FD brakes. It only takes a gentle flexion of my big toe to get the ABS to kick in (using EBC Green Stuff pads Fr/Rr and Mazdaspeed Motorsports Devlepment stainless steel DOT flexlines Fr/Rr).

Since ABS kicks in so soon, now--with the Type RS brakes--the limitation in stopping distance has fallen solely on the tires. For the road the tires are 255/40-17 Yokohama AVS I's. For the track the tires are Hoosier R3S03 racing tires in 245/45-17 fr and 275/40-17 rr.

I will be track testing the my new Type RS brakes (hopefully in the dry) with Porterfield R4E (endurance) pads and Hoosier racing tires, next weekend at Putnam Park at the Central Indiana Porsche club drivers education event.

The kit comes with the caliper/rotor/ and pads. It's a complete kit, not just the caliper.

I was thinking about getting other big brake kits like the AP racing, but I'm not looking to spend $7k on it.

SleepR1, thanks for the info, I'm in for the brake upgrade now.

Ok RS brakes sound real interesting now. Does anyone know how much slotted or x-drilled rotors would cost? No flames, but I love the look of x-drilled rotors and I have yet to have any crack on me with hard street or autocross driving so I still like them.

Spyfish,

You can probably have the Type RS rotors slotted BEFORE you install them. I also recommend getting them cadmium-plated to resist corrosion.

I think there was a post on here somewhere that said N-Tech was considering offering some slotted and plated RS rotors.

-Max

Re: porsche calipers on FD??
 

Does anyone know if this can be done on a FC?...if so what will it entail?

Suggestions on where to buy and $? Thanks.

Read all four pages of this thread (81 posts). It's chock full of information regarding the Type RS brakes retro-conversion.

https://www.rx7club.com/forum/showth...threadid=51895

Good luck!