disk brake info?

[caddycamus]

ok, so here is my deal. im working to put 4 disk breaks on my 92 gl. for now im just using aspire disks up front and gt disks in the back on an aspire axle using the homade hub trick. but i want to go bigger, im looking to put gt 11" disks on both front and back and use RX7 calipers up front and back.
now the back is not the issue i alredy have fit the 11"s on the back and im making up a mount for the rear rx7 calipers. but i would love to hear ideas (realy would love some pix) of how to fit the 11" and the four piston 2nd gen RX7 calipers up front on the aspire then later gt hubs.
what i have in my mind right now is a steel plate that bolts up to the stock caliper mounts and has spacers to move the caliper in to the right place.

thanks guys

[caddycamus]

here is just a short list of some of the stuff i gone done did to my festiva.
-BP swap Escort GT
-short throw shift kit
-full aspire brake swap
-tenso seats
-simpson 5point belts
-14" steel rims
ill ad more later

[muscle_Car1]

here is just a short list of some of the stuff i gone done did to my festiva.

Say that again?

For what reason are you going to use 4 wheel discs brakes? Never the less the same size all around. Must be for pure aesthetic reasons.

[caddycamus]

well aesthetics shure but i want more stoping power. the more i have the beter the car.
plus its somthing that (to my knowledge) no one has done before.
all i want are ideas about how to fit those RX7 calipers pictured on the first page of this thred, to fit a ford Escort GT front spindle.

my break mods as it sits right now are: front rear aspire swap, escort gt master cyl and break booster.

[caddycamus]

btw i have bad grammer and spelling but that bit there was a joke.

"here is just a short list of some of the stuff i gone done did to my festiva."

[muscle_Car1]

^OK i didn't know.


Better brakes as in how? I can lock up my stock aspire(F&R) brakes with sticky toyo proxies with just some ebc greenstuff pads. I kept the stock master as it gives me more of a range to my brakes as I feel the aspire master gives the brakes more of a ON/OFF feel when I need some movement. Now if your doing hours of endurance racing I can see having more material there to aid in the heat dissipating, but there are better ways of cooling your brakes for the reduction in brake fade. A simple cooling duct would go far in reducing the operational temps of your brakes.

Then comes the actual part of maybe having a e-brake. You'll be wanting a rear caliper that integrates a e-brake into its design. Such as using both front & rear from the rx7 or maybe a miata.

As far as oh wow factor yeah do it!

The red ones are Fc(2nd gen) turbo II brake calipers. I've heard of many other backyard mods to use them as they are Aluminum & an upgrade for most vehicles.

It has been on here on how to out the escort GT brakes on a aspire swap. Someone has also done the EGT rear disc brakes, but has found the hub moves out how ever thick the spacer attached to the axle is. Meaning your tires might rub the fenders(excellent time for flares).

http://fordfestivaaspire.yuku.com/topic/1368/t/Escort-GT-four-wheel-disc-brakes.html

BTW I do like how you posted on our long dead precursor forum

[caddycamus]

awesome i'm totally going to do this now
more ideas are always nice though.
and yah i have seen that guy before i totally ripped off all of his hard work.
but i'm taking it a step farther, since you have to make a custom bracket for the e brake and caliper anyway
i figured why not go all out?
by using an rx7 rear caliper i can move up in size to the escort gt front rotor on the back aspire axel. that will look awesome and give better performance by miles. i found out by playing around with some parts that with the hub you build to do the EGT rear disk swap you can fit the front EGT rotor to it and all you need is a bigger caliper with an ebrake cable. thus the RX7 rear caliper from the same model as the Fc(2nd gen) turbo II brake calipers. by fitting these parts up together i also found out that the offset of the EGT rear disk and front disk is the sameso and the center line stays in the same spot for both disks. to fabricate a mounting bracket for the caliper you need to do little more than make a flat piece of steel bolted to the axle with some spacer washers in the right spot to mount the caliper.

PS im not useing a Aspire or Festiva mas cyl im using an EGT MBC.

[muscle_Car1]

[quote=caddycamus;335629]
but i'm taking it a step farther, since you have to make a custom bracket for the e brake and caliper anyway [Quote/]
Whats a step further? He had to make a custom mount for the cailper too.
[quote=caddycamus;335629]that will look awesome and give better performance by miles.[quote/]
Please tell me what performance increase there is going to be?
[quote=caddycamus;335629]fitting these parts up together i also found out that the offset of the EGT rear disk and front disk is the sameso and the center line stays in the same spot for both disks. [quote/]
Yeah the center line will stay the same but you have moved the whole hub outward. I wasn't talking the center line of the disc rotor, i was speaking of differences in center-line vs stock.

PS im not useing a Aspire or Festiva mas cyl im using an EGT MBC.

So you have a bore size of 15/16(egt) vs 13/16(aspire) vs 12/16(festiva).
Good plan as you'll need the extra fluid movement to compensate for the additional surface area of the multipiston caliper. Remember you are going to need a new adjustable proportioning valve. Through trial & error(hopefully on closed courses) you have to find the right divsion of braking power between the front & back. For optimal braking the front should lock just before the rear.

[caddycamus]

not entirely true, the EGT proportioning valve should give me a good enough bias. if it dose not than one from an RX7 will for shure.

now on a new subject. any ideas to get the RX7 caliper to bolt on to the EGT disk and hub? i know im gona have to use a steel plate to space it but anything you guys are thinking about it, that i might be missing?

[muscle_Car1]

not entirely true, the EGT proportioning valve should give me a good enough bias. if it dose not than one from an RX7 will for shure.

No I am entirely truthful on that statement. You want to use a homemade setup utilizing parts from different vehicles & a cobbled together bracket with washers to space things out. The you wish to use an off the shelf part that doesn't necessarily match the caliper selection to achieve a "good enough bias"

Since you are adamant about this being a "performance" modification then you would want an adjustable proportioning valve to eek every last bit of braking force out of the brakes before lock up. I have not even gotten into the lack of steel-braided/Teflon lined soft brake lines to reduce the ballooning effect on the normal soft rubber lines, differnet types of brake fluid with their respective boiling points, brake pad material, optimum operation temps, rotor material selection, and tire selection as it relates to the overall braking ability.

I will answer as truthfully and sometimes bluntly as necessary.

[caddycamus]

any hints where i can pick one up? i looked for one a while back for a caddy but came up dry. any help?
and not saying you dont have a point, but...
if all of the parts i use are from just one car then that cars provalve will work.
im broke right now so im only doing the full EGT swap for now. so im only going to be useing EGT break parts mascylinder, disks, calipers, pads etc. so the EGT valve will work fine.
and when i upgrade to the RX7 parts i might aswell do a full break swap and change out all the EGT parts i have in it for RX7 ones?

btw, i realy am gratefull for all of your advice and pointers. thanks.

[eurotiva]

Mike I just did a capri brake swap and it's awesome. I used egt calipers and 10.3 inch capri rotors.

[anomoly40]

Greg, what did you work out for the rear?

[sasquatch]

Mike I just did a capri brake swap and it's awesome. I used egt calipers and 10.3 inch capri rotors.

10.3 inch? are you sure 10.3? i tried getting the 10.3 inch ones and it wouldnt fit... i had to use the 9.3 inch ones

[anomoly40]

He used capri spindles and aspire lca's I think.