So a while back I saw somewhere in the japanese yahoo auctions of someone selling an adapter piece for a 2nd gen car to adapt to using a 3rd gen brake rotor. It used the stock 2nd gen caliper, but the adapter piece spaced it out enough to use the 3rd gen rotor.

This is from what I can recall, is there any such thing that someone sells stateside?

Or any BB kit for the 2nd gen?


Sorry for the ignorance, first gen owner here.

 

what are your plans for the car? the stock brakes are very capable as is..

 

not if you have 4 lug...

 

Upgrade to the 4 pot front/vented rear and get some good pads...

 

Corksport sells (or used to anyways...) that bracket.

Its for the *REAR*. Its mostly made to fill the void of the market, most brake manufactures only produce FRONT kits for our cars, very very few make up-sized rotors/calipers for all four corners of the FC.

 

From what I've read here, the 5 lug/4 piston setup on the FC is too similar to the FD setup to bother.
More expensive parts and fabrication needed for not much, if any brake improvement.

Hell, look up the rear brake pads for a 1988 RX-7 with 5 lug wheels and a 1994 RX-7 at Advance Auto Parts', Autozone's, or Rock Auto's website... Same part numbers.


As a side note, I believe the 4 lug single piston setup is similar to the GSL-SE FB setup.

 

Even if the brake pads for the rear of an FC and FD are the same part number - the FD rear brake rotor is significantly larger then the FC, which is the main gain with this swap. To balance the leverage you've added up front out. (assuming you've added larger brakes on the front)

 

actually from what i have read you wouldnt want more braking power in the back. that will just cause problems. theres a reason the cars came with a think a 80/20 ratio for the brakes. cant remember the exact ratio. but something like that. you would want the bigger brakes mainly in the front since most of the load will shift to teh front when you brake

 

Depends on what the car is used for and what kind of feel the driver likes. Most people that go this route will have a proportioning valve anyway to dial in their F/R ratio

 

Wow. I never considered that the rotor was different.

That was when I was looking for ceramic pads for the FC... Which do exist but are a bitch to get a hold of...

11.6" diameter rotors for the FD, front and rear.

10.9" and 10.7" Front and Rear for the FC 5 lug setup...

Seems to me that there's a lot of unused surface area on the FD rotor.

 

Keep in mind I have an FB. Our big brake kit is moving to 2nd gen hubs/rotors/calipers, turbo variety.

 

Turbo, GXL, Convertible... Anything with five lugs and 4 piston front calipers will do the trick.
Keep in mind, the FB weighs a good 200-300 lbs lighter than the FC dependent on configuration.

The 4 pot brakes will do just fine. I'd worry about an adapter bolted to another adapter on the FB...
FB adapter to the FC brakes... Then the FC to FD adapter...

 

4 lug with 4 piston calipers!

 

Thats the point.

If you re-read my post, its to balance out the bias ASSUMING YOU'VE ADDED LARGER THEN STOCK BRAKES IN THE FRONT. Since 90% of the BBK's for an FC are front only, you end up with a 12-14" rotor on the front, and a 10 on the back. Moving the the FD rear rotor brings that ratio back closer to stock.

 

Ive heard of FD guys putting fc brakes on their cars.

 

im using FD front rotors and pads on my 4 lug car with custom made spacers.

 

our "adapter" from FB to FC is a complete overhaul. There is no FB parts beside the spindle itself. The mount for the caliper is one piece.

It would be the equivalent of the FC with an adapter on it.