Rear Disk brakes caliper brackets

[blancojp]

Hello all!

I have gotten several emails and Pm's on the rear caliper bracket subject so an order for brackets will be placed on March 20th. These are the brackets that allow a Cadillac caliper to be installed with a 262mm vented rotor. I don't have any in stock but I can have made as many as we need in a week's time.

If you want a set of brackets for your car, the cost is $90 (including freight ) and you can place the order via paypal to edc_inc@bellsouth.net. All placed and paid orders will be released for production on the 20th, parts will be received on the 27th and shipped on the 30th of this month.

[N61WP]

Does this fit the both the early (pre '71 I think) and late rear end?

What rotor does it use?

[nhopel]

JB I've mine mounted on the car now next step E-brake cable what do you recommend

Dennis

[dallasmanta]

JB, any chance you will put a complete package together since you are in the business and have parts relationships that can drive the initial costs down. If so what type of price range are we talking. I would have a need for one or two kits for a manta 74 and 75 Thanks Ron

[blancojp]

Originally Posted by N61WP Does this fit the both the early (pre '71 I think) and late rear end? What rotor does it use?

It fits all '69-'73 rear ends and Manta up to '75 I believe. It uses a Honda Prelude 262mm rotor, no rotor mods needed.

Originally Posted by nhopel JB I've mine mounted on the car now next step E-brake cable what do you recommend Dennis

The cable I use comes from an '80s El Camino and I will be showing the rear install on Stealth very soon.

Originally Posted by dallasmanta JB, any chance you will put a complete package together since you are in the business and have parts relationships that can drive the initial costs down. If so what type of price range are we talking. I would have a need for one or two kits for a manta 74 and 75 Thanks Ron

You can expect the rear kit complete to be in the $275 - $300 range. The main problem is the calipers and sometimes they are hard to find.

[ggl]

Originally Posted by blancojp You can expect the rear kit complete to be in the $275 - $300 range. The main problem is the calipers and sometimes they are hard to find.

Could front calipers from a SAAB 900 Turbo be an alternative ?

It had the handbrake on the front wheels if memory serves me right

[blancojp]

Originally Posted by ggl Could front calipers from a SAAB 900 Turbo be an alternative ? It had the handbrake on the front wheels if memory serves me right

Let us not try to reinvent the wheel shall we?

[Lindsay]

Could somebody provide the link that shows this rear disc brake conversion?

[TDItech]

Yes, I would like to ahve the original link as well. What model of Caddy do these calipers go to?

[blancojp]

Originally Posted by TDItech Yes, I would like to ahve the original link as well. What model of Caddy do these calipers go to?

I don't know if the link still exists, I have made several searches and did not find anything.

The calipers are from a 1979 El Dorado, the rotors are Honda Prelude Si and the E-brake is from an El Camino. The bracket however I make to order and there was no interest at the time so none were made. I did make a new kit which uses '88 Acura rotors and calipers, which are easier to find used in many junk yards. I installed a set on Stealth with a Lokar E-brake cable kit which proved to be a good fit.

It takes a lot of effort, time and resources to come up with viable options for brakes. I currently have 10 different brake options for the front and 6 for the rear but stopped posting since no interest was shown.

[myopels]

Juan, I am new to the forum, but have plenty of Opels. I'm very interested in bigger brakes for them. Please let us know of the front and rear options that are possible, along with years of the donor cars. thanks for the great info-gerold.

[mc1457]

Originally Posted by myopels Juan, I am new to the forum, but have plenty of Opels. I'm very interested in bigger brakes for them. Please let us know of the front and rear options that are possible, along with years of the donor cars. thanks for the great info-gerold.

Throwing in a big ol' "me too". My car's front rotors are toast and I just twisted off one of the bleeders. Rather than rebuild the calibers I'd like to do an upgrade. Doesn't need to be radical. Prefer to go with a setup where the rotor is separate from the hub (so they can be changed easily). 2-piston front, single rear.

[TDItech]

I am quite intrested as well.

[T-6 driver]

Me as well, however, I will need to lean on your brain trust to make it happen.

[blancojp]

Originally Posted by myopels Juan, I am new to the forum, but have plenty of Opels. I'm very interested in bigger brakes for them. Please let us know of the front and rear options that are possible, along with years of the donor cars. thanks for the great info-gerold.

Originally Posted by mc1457 Throwing in a big ol' "me too". My car's front rotors are toast and I just twisted off one of the bleeders. Rather than rebuild the calibers I'd like to do an upgrade. Doesn't need to be radical. Prefer to go with a setup where the rotor is separate from the hub (so they can be changed easily). 2-piston front, single rear.

Originally Posted by TDItech I am quite intrested as well.

Originally Posted by T-6 driver Me as well, however, I will need to lean on your brain trust to make it happen.

Guys!
For me to give you all options is a waste of time, let us be realistic here and explore the availability of the requirements for the options.

First and most important, what wheels do you all have? If you retain factory wheels then you need to measure the inside of the wheel to see how much room you have. Depending on the available room ( it does vary from wheel type to wheel type), then a rotor / caliper combo can be selected. The stock wheel can only accomodate a 248mm vented rotor / caliper combination at max.

Second would be the master cylinder/booster combo. Are you upgrading or using the stock unit? Again this also limits the caliper options due to the compliance in the system.

Third would be rear brakes. Are you keeping the rear drums or installing disk brakes? If you are keeping the drums then are you increasing the wheel cylinder to 3/4" or keeping the 5/8" stock unit? If you are installing rear disk brakes then depending on #1 and #2 above, the rotor / caliper combo is then selected.

Fourth and last, but not least, would be the type of brake hose you will use. Are you going to use stock or braided SS? This also limits the caliper type you can use since you can't use a stock hose with a floating caliper.

On Stealth, I have 262mm front and rear disk, single piston floating calipers. On the Ascona, I am trying out a new 248mm vented front brake system which allows the stock wheel to be used. There are other members which have either my front or rear disk setup and are happy with the performance.

So there are many options depending on the variables at hand. The '75 Opel big brake system is not actually an upgrade since you are only moving the pads outward 4mm, which results in a very minor applied torque increase. Plus there is no help in the heat side of the equation since you are increasing to a slightly larger solid rotor. I have front brake designs from 246mm to 304mm, rear brakes from 248mm to 262mm. All my systems are vented rotor designs and I can have any quantity of brackets made quickly, since I now own a flow jet machine.

But the most important question is, how much do you want to spend?

[T-6 driver]

Juan,

I appreciate your time and effort in documenting your builds. There's one thing though, you give us way too much credit. I don't wrench on cars for a living, I fly jets. So I have no clue what the answer is? Cheap is good, and so is easy. But best of all, your willingness to show the rest of us how to make our cars better is most appreciated! Right now, I'm back to a stock 72 with the 13" rear wheels, but that could change. So tell me what I should want, and chances are, I'll do exactley what you say, just becasue I have seen your work and it is Sierra Hotel!

Cheers!

[blancojp]

Originally Posted by T-6 driver Juan, I appreciate your time and effort in documenting your builds. There's one thing though, you give us way too much credit. I don't wrench on cars for a living, I fly jets. So I have no clue what the answer is? Cheap is good, and so is easy. But best of all, your willingness to show the rest of us how to make our cars better is most appreciated! Right now, I'm back to a stock 72 with the 13" rear wheels, but that could change. So tell me what I should want, and chances are, I'll do exactley what you say, just becasue I have seen your work and it is Sierra Hotel! Cheers!

I spent some time designing hydraulic systems so to me is easy to put something together. I am not a mechanic however I can hold my own using any tool in a well sorted shop.

The biggest, mostly off the shelf, brake system I put together for an Opel is the 304mm vented front system. This is a slip over the hub design and does move the front wheels out 5mm. It has a multitude of parts from different manufacturers which work well in unison. The front and rear rotors are from a Chrysler Lebaron, the front calipers are from an S-10 and the rear from a '79 Eldorado. The hoses are from a 1988 Acura Legend and of course the custom caliper brackets are made by me.

Take a look at this post...

http://www.opelgt.com/forums/perform...ew-brakes.html

[goodwinr]

Here is what I have:

I have 15 inch wheels and would like to keep the stock master cyl. I am not wanting to go crazy with price but want something that is a very good upgrade and will look good as well. Can somebody give me a suggestion on what I need for Rotors and Calipers that is easy work for A NOVICE AT THIS KIND OF WORK. Is there anything else I need to be concerned with?

Thanks for the help for this brake handicapped GT lover!

Rob

[blancojp]

Originally Posted by goodwinr Here is what I have: I have 15 inch wheels and would like to keep the stock master cyl. I am not wanting to go crazy with price but want something that is a very good upgrade and will look good as well. Can somebody give me a suggestion on what I need for Rotors and Calipers that is easy work for A NOVICE AT THIS KIND OF WORK. Is there anything else I need to be concerned with? Thanks for the help for this brake handicapped GT lover! Rob

With the stock master cylinder you can install a 262mm front rotor and Volvo calipers. This would be the easy and cheap route to go but there is some work to do on the hubs for it to work. But all of that has been covered here many times.

Brakes are simple but sometimes simplicity is complicated.

[goodwinr]

Thanks JB! I will look at the other posts and hope to upgrade soon!

Rob