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-   -   s13 brakes on FC? (https://www.rx7club.com/2nd-generation-specific-1986-1992-17/s13-brakes-fc-670551/)

bboyclo 07-12-07 08:10 PM

s13 brakes on FC?
 
I was wondering if s13 performance brakes would work on a FC since they're both 4 lug and same lug pattern? has anyone ever done this or know if it would work?

VacavilleFC 07-12-07 08:15 PM

why don't you just do a 5-lug swap off a higher model fc? the 4pot front brakes are pretty much as good as it gets without spending several thousand dollars

Healing 07-12-07 08:19 PM

I think the stock brakes use larger diameter rotors than the S13 anyways, but if you'd like to go through that pain in the ass for not a whole lot of gain, go for it.

Funkspectrum 07-12-07 08:41 PM

no

slow_2ed_gen 07-12-07 08:55 PM

5 lug swap ftw

Zar 07-12-07 09:03 PM

s13 brakes suck.

I'd try to get as far away from s13 brakes as possible.

Just source out some 4pot calipers and 5 lug.

bboyclo 07-12-07 09:09 PM

how much would that run me?

black_88 07-12-07 11:08 PM

why is it that when ever some body talks about brakes it always turns out that they say get the four pot brakes. the car stops fine on just the single pot and four lug brakes. not evary one needs the four pot ones. my car stops fine on singl pot ones and I whould not change them. but I whould not mind the five lug spindles but for the down time to put all that stuff in and the cost of those parts just dose not seem to need to be done to evary car on the road. but that is just my 2 cents.

Alex Rodriguez 07-12-07 11:13 PM

lol....i would like to see my car stop with single pots...ha yeah right! 4 pots are better all around but if your car is gonna be kept at a almost stock power range then stick with the stockies

MaczPayne 07-12-07 11:13 PM

Anyone that quotes Super Street magazine should be punched.

initial D is REAL! 07-13-07 12:16 AM

One thing you got to know is that stock s13 brakes suck ass, jdm or usdm. The 300zx calipers they use are 5 lug rotors redrilled to 4 lug, unless the 240sx owner gets 5 lug conversion.
Besides , it would b best to know the size of the pistons to figure if the master cyl setup on a rx7 would b good enough. Custom mounting, custom brake lines. It sounds likea Pain in the butt.

Many junkyards will have rx7's with the 4 piston brakes on them, and the right parts, and get them rebuilt , or You can either buy those or buy everything froma parts shop.

OJmobileII 07-13-07 12:39 AM


Originally Posted by initial D is REAL! (Post 7131937)
One thing you got to know is that stock s13 brakes suck ass, jdm or usdm. The 300zx calipers they use are 5 lug rotors redrilled to 4 lug, unless the 240sx owner gets 5 lug conversion.
Besides , it would b best to know the size of the pistons to figure if the master cyl setup on a rx7 would b good enough. Custom mounting, custom brake lines. It sounds likea Pain in the butt.

Many junkyards will have rx7's with the 4 piston brakes on them, and the right parts, and get them rebuilt , or You can either buy those or buy everything froma parts shop.

I am not sure if the poster somehow had aftermarket S13 brakes fall in his hands or why this question was asked. Those of you stating that TII brakes are better than S13 brakes is obvious. He was asking about aftermarket brakes. Which as said above, most 240 guys upgrade to Z32 4-pot brakes. Some do have the rotors drilled for 4-lug and some convert their cars to 5-lug. Z32 rotors are larger in diameter and thickness to TII brakes. In my opinion the Z32 brakes are superior to TII brakes. The things said above about custom mounting, brake lines, and different master cylinder I agree with and would make this swap not worth it.

The poster needs to be more specific as to why, he wants to use aftermarket S13 brakes. If for some reason they fell into his lap, I would sell them and pick up some TII brakes which would probably be plenty for his application. I am sure you can buy new rotors and have them drilled for 4-lug. But with the abundance of 5-lug 4-pot FC's, I would just do a 5-lug conversion and save alot of headaches in the long run. I hated my 4-lug S13 so much. Poster please elaborate on why you would want to do this.

initial D is REAL! 07-13-07 12:54 AM


Originally Posted by OJmobileII (Post 7131988)
I am not sure if the poster somehow had aftermarket S13 brakes fall in his hands or why this question was asked. Those of you stating that TII brakes are better than S13 brakes is obvious. He was asking about aftermarket brakes. Which as said above, most 240 guys upgrade to Z32 4-pot brakes. Some do have the rotors drilled for 4-lug and some convert their cars to 5-lug. Z32 rotors are larger in diameter and thickness to TII brakes. In my opinion the Z32 brakes are superior to TII brakes. The things said above about custom mounting, brake lines, and different master cylinder I agree with and would make this swap not worth it.

The poster needs to be more specific as to why, he wants to use aftermarket S13 brakes. If for some reason they fell into his lap, I would sell them and pick up some TII brakes which would probably be plenty for his application. I am sure you can buy new rotors and have them drilled for 4-lug. But with the abundance of 5-lug 4-pot FC's, I would just do a 5-lug conversion and save alot of headaches in the long run. I hated my 4-lug S13 so much. Poster please elaborate on why you would want to do this.


Anything JDM is better. 10" single piston sliding brakes will turn a cool blue after heavy braking. And blue is cool too

staticguitar313 07-13-07 02:12 AM

4 piston 5 lug setup with vented rear rotors, hawk HPS pads, good brake fluid and a good set of tires is more than you'll ever need

fc3sfreek 07-13-07 02:45 AM

-_- y would u want S13 brakes? i know first hand they are possibly the worst brakes ive ever felt. (i drive an s13 for a daily driver) mite as well get honda civic brakes

My5ABaby 07-13-07 07:02 AM


Originally Posted by black_88 (Post 7131749)
why is it that when ever some body talks about brakes it always turns out that they say get the four pot brakes. the car stops fine on just the single pot and four lug brakes. not evary one needs the four pot ones. my car stops fine on singl pot ones and I whould not change them. but I whould not mind the five lug spindles but for the down time to put all that stuff in and the cost of those parts just dose not seem to need to be done to evary car on the road. but that is just my 2 cents.

They're probably suggesting upgrading to 4 piston brakes because the OP is asking about an upgrade. :icon_no2:

Zar 07-13-07 03:20 PM

Hmm. Maybe you like having brake fade enough to have single pot calipers. I know for sure I don't.

Only excuse you'd have to keeps the single's would be if you're a cheap ass.

z32 brakes are pretty much the same as fc 4pot's.

If the OP has a pair of them then he can sell them for a decent amount on the s-chassis boards.

You can find the 4pots at a yard pretty easily. I saw some yesterday intact.

evl mnky 07-13-07 03:25 PM

when looking at 4pots on a FC in the junk yard, whats the best way to tell if they are junk?

13b4me 07-13-07 03:40 PM


Originally Posted by black_88 (Post 7131749)
why is it that when ever some body talks about brakes it always turns out that they say get the four pot brakes. the car stops fine on just the single pot and four lug brakes. not evary one needs the four pot ones. my car stops fine on singl pot ones and I whould not change them. but I whould not mind the five lug spindles but for the down time to put all that stuff in and the cost of those parts just dose not seem to need to be done to evary car on the road. but that is just my 2 cents.

You've never had a fast car have you? :)

13b4me 07-13-07 03:42 PM


Originally Posted by evl mnky (Post 7133870)
when looking at 4pots on a FC in the junk yard, whats the best way to tell if they are junk?

The best way is to just assume they are and rebuild them anyways. Or a good indicator is the amount of rust on the rotors.

classicauto 07-13-07 03:46 PM


Originally Posted by Zar (Post 7133856)
Hmm. Maybe you like having brake fade enough to have single pot calipers.

Just tossing this out here....

http://i33.photobucket.com/albums/d8...ntoindy007.jpg

http://i33.photobucket.com/albums/d8...ntoindy006.jpg


This car is a dedicated track car. 1/2 bridge S5 with ITB's. Its owned by a local member here (23racer) on the boards and - as I said - is a DEDICATED track car.

Guess how many lugs his wheels have and how many pistons his front brakes have? Answers are four (per wheel) and one (per caliper) respectively.

I'm not saying that the four piston OEM calipers are not better in ANY way. I'm merely pointing out that you can drive your car on a REAL track with single piston brakes and be just as proficient as you can with something "better". Key's are keeping the system itself in good order with good race pads and fresh fluid.

..........................just something to think about.

evl mnky 07-13-07 03:52 PM

well thats good to know :D

phoenix7 07-13-07 03:54 PM

so, is it safe to assume that the 240sx is the honda civic of the new fad (rwd drift cars)??

I'm sure there are a buttload of parts available for super cheap but don't alwways assume it will be a better product. What's next an upgraded oil cooler that is better than stock??:rlaugh: If it aint broke, don't fix it.

Roen 07-13-07 03:56 PM

hmm....i wonder how many other track cars are out there with single pot brakes......

compared to FC's that run 4-pots, my guess is that it's about 90-10 in favor of the four pots.

Though really, what is important is pad, rotor and fluid. The stopping power of the single pot is about the same as the 4-pot. The 4-pot just spreads the clamping force of the pistons in the caliper more evenly on the pad. My guess is that it leads to better initial bite, and longer pad life.

As long as the total surface area of all the pistons is about equal when comparing two calipers, the stopping power should be pretty close to each other, all else being equal. For example, if you have a huge single pot that's about the size of 4 smaller pot's put together.

If you've got money to burn, you can always break out some cash for the MFR Oil Cooler!

evl mnky 07-13-07 04:01 PM

this info is helpful in my build guys, thanks! I might go w/ some nice pads, rotors and rebuild the single pots and new fluid and all and see how that goes first...


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