fordrevhead

sorry to be a post hoar, but this is cross gen specific, so I'm posting in FB and FC. I want to achieve better front brakes on my FB (83). I will be using 15" wheels of some sort. I also have a CHrysler 8-3/4 posi rear now after the stock rear tore itself up on a hill climb, it's 5 lug x 4.5... which is the same pattern as 87+ turbo 2's I believe.

Finding a donor car in upstate NY will not be easy so before I go looking, what exactly will I need to change, spindle, caliper and rotor? Or strut assy as well?

Am I missing anything, any other ideas? Any good sources?

I've never had two of these cars side by side with a wheel of to compare. Actually I'm not very familiar at all with the TUrbo 2's really.

Thanks a million!

assman20a

umm thats a hard one

well if the front ends are similer then you would need the whole asembly.rotor,caliper,braketry,lines,etc

but i think it is to far of a difference. hell they changed the FC compleatly in one year (88-89)

good luck

Dltreezan

iTrader: (3)

sounds interesting....I dont think it would be TOO hard and no they didnt change the FC completely, even the series parts are easily exhangeable between s4 and s5

Re-Speed.com

iTrader: (3)

Check your other post.

edwin-82/rx7

iTrader: (1)

There was an fc in malone, ny, i looked at it about 8 months ago. was an 87 i believe

smnc

cpracing.ca has a kit.
I just had it installed and I will be picking up my car (hopefully) today...

fordrevhead

I called them... they called back, we're playing phone tag. I'm confused by what I have to supply and what I get for my money. I'd be doing it myself, and there kit seems a bit pricey if I still need to truck in some other parts from a boneyard.

Anything you can tell me about the conversion you had done?

nosajwrx-7

I believe the kit consists of a bearing adapter and a caliper bracket. And you need 84-85 spindles. But I may be wrong. I do plan on doing this to mine if I can ever get back to working on it. I'll make my own kit though.

gsl-se addict

iTrader: (3)

Bouis on here has a thread about the brake kit, but I don't think the pics are up anymore. My understanding is you basically just get a couple brackets and such. You need to supply the rotors, calipers, pads, etc. I am not sure if Bouis ever installed them or what he thinks about them. He hasn't posted in this section for quite awhile. I think it is expensive for what you get, but there are not a lot of options for brake upgrades for the FB.

https://www.rx7club.com/1st-generation-specific-1979-1985-18/cp-racing-big-brake-kit-update-2-a-357897/

https://www.rx7club.com/1st-generation-specific-1979-1985-18/todays-project-brakes-%5Bpics-%5D-351727/

Kent

smnc

Yes the bolt paten is the same, but I have no clue about any offeset/backspace differences...

You have to supply all the TII brake parts (hub/rotor, bearings, caliper, pads...)
They give you the parts required to make the 2nd gen parts fit your car.

I didn't install it myself (don't have the time/space), but my car is actually at CP Racing having it installed.

It's not terribly cheap, but it's all custom so...

Anyways, if you go to thier website and click on "support" the detailed instructions are at the bottom of the page.

A couple things to note:
Do you have a GSL-SE? If you do, the new brakes will sit a tad closer to the struts/coils than stock, so you'll need to take that into account when selecting rims...

Bear in mind they're a garage first and a manufacturer 2nd, so you may have to be a little tollerant of contact delays

I'll let you know how mine is when I pick my car up...

fordrevhead

Seems to me it would be quite expensive for what you get too!

I haven't even tried to source the parts yet.. I think I'd just buy used "knee" assemblies that would give me strut, hub bearing spindle assy, caliper, etc.

SE.. beats me, how do I tell? My guess is no, because the leather interior is from a different car??

I'll check out that old thread.

I'm a design engineer and have access to a laser cutter so I could make a bunch of nice adapter plates if y'all wanna figure this out together?? But if we're supplying the larger bearings and spindle hub from a T2 than is the adapter plate just adapt the strut?? Steering comps. the same?

If I only had the parts I could figure it all out, I just dont want to get all of the wrong parts, or be missing something, or redesign the wheel (I've done enough of that already) when a simpler method is out there.

I thought this was an original idea at first... I noticed the bolt patterns and dual calipers once and have been thinking about it ever since.

If the backspacing changes I dont care because I'm holding off my new new rims anyway.

thanks all

nosajwrx-7

There used to be a few threads explaining how this could be done. It was actually before CP came out with their kit IIRC. Have you tried searching?

IIRC, you need a bearing adapter fro the inner bearing and seal. Not to hard if you have access to a lathe. Once the is done you can figure your backspacing and design the caliper brackets. Truly you would need to commit to the project by buying the fc components first.

smnc

By all means, if you have the abilities and equipment, buid your own!
Unfortunatly, I have neither so I went with the kit.
And the just fo the record, the only expensive parts of the TII brake setup (aside from the CP Kit) are the calipers. The rest of the parts were quite cheap!

As for wheather it's a GSL-SE:
The GSL-SE badging is a dead giveaway.
Also the larger 13B fuel injected engine (Has a big intake Plenum with RE-EGI on it), plus the 12 spoke stock alow rims... and if all that fails, the VIN will start with:
JM1FB332
for a non-SE car it will be:
JM1FB331

fordrevhead

smnc... That's all so simple it almost makes me sound dumb... but now that you mention the 13B, they didnt make the 13B until 84! so, ha!! Mine's an '83 and besides, the body is stripped, no badges... it is very solid and straight but repainted, not so well, so I'm stripping it to metal. As far as the engine, that's gone too.... I believe off the top of my head the vin may be 331 though.

Guess I'll start hunting for some T2 parts and wing it.

fordrevhead

ahhhhahhh! looky what I found! check this out!

Custom hub. Uses 4th gen RX7 rotor (294x22) and 3rd gen 4 piston aluminum caliper. The good think about the RX7 rotor is that it has a large size to give sufficient brake torque, yet isn't as thick as heavy as the P-car stuff. See here for pics:

http://www.vdubcustoms.com/Wedo/mazdabrakes.htm

The kit will bolt on to stock drum, cb drum or stock super spindles

comments?

jays83gsl

. . . . fourth gen RX 7 rotor?

fordrevhead

yeah, that came right from the website. nice to see another approach, but i dont know exactly what the h*ll he's doing.

kenn_chan

I think thats to mount the RX-7 brakes on a totally different car.

Kenn

Gslse turbo

i have got turbo II brakes on my fb. For the fronts i had some bearing spacers machined for the inner and the outer bearing is the same as far as caliper mounts went i had to make my own the machine work cost me about 150.00 dollars. Oh yeah i for got i did have to run wheel spacers the front then moved to like a 20mm offset instead of the factory 30-35mm spacing

fordrevhead

Oh, VDUB is VW, right you are, Type 1 VW with RX7 brakes. lol

Hades12

Take a look here

http://www.theracingstore.com/intakes.html

fordrevhead

Thanks Hades12. Cool stuff, but steel instead of cast iron! Long term on the street they'll overheat... that's why it says "racing use only." Which is silly because racing could cause more abuse than on the street depending on the cirsumstances.

Looks like I'm heading for the bone yard.

thanks all!

dj55b

iTrader: (2)

ya but on race cars, they prob change them every time they race, just like thye prob rebuild the engine before everyrace or so

Frankenrex

iTrader: (1)

the two "road race" kits don't say that they're steel. Moreover, they call them "road Race/Street" kits, so...
Not incredibly cheap, but you get the billet hubs, calipers, brackets, rotors, and bearings for your $899.

fordrevhead

Those are zinc coated aluminum hubs... which sounds awesome until the plating wears off... (*&%($^*&
Guess if you use a soft pad and change them often..

Anywho, still leaning towards converting stock 87-91 four pistons. Anyone have any used parts they'd ship me?