Installing a 99+ Cobra IRS into a Fox Body

Tom Beverly and Lewis Tanner

Mouthbreather Motorsports

PAGE 2

Step 15: Install the brake caliper onto the mounting bracket. Position the brake hose mounting bracket so that it will not be caught in the suspension during movement. Mark the location of the mounting tab and drill a 1/4 inch hole to accomidate it. Use a self taping metal screw to mount the brake hose bracket to the frame rail.

 

Step 16: Using a tubing cutter, cut the factory brake line running down the transmission tunnel approximately 2 feet before the line reaches the existing brake block, which will be left in the car if you have followed our directions to this point without reading ahead, as it is too much of a pain in the ass to get out now. We will go ahead and justify leaving it in there by saying something about knowing where it is when or if you ever go back to stock.... Now, place a threaded fitting on the tube and flare it. Attach a dual female brake line (in red) connector to the end of the line. It should look a lot like the one in our picture now. You should also go ahead and remove the old tubing leading to the brake block, we found it takes about 10 bends to break it off.

 

 

Step 17: Determine the best place to locate the brake distribution block (T-Fitting) and approximate the amount of brake line required to mount it and connect it to the fitting you put on in step 16. Go ahead and measure the amount tubing required to reach the calipers on each wheel, add a bit to that measurement, then cut some tubing for it. A bit too much length is much better than not quite enough. Note: You should not have the two lines leading to the calipers on yet, pretend they are not in that picture.

Step 18: Using a precision tubing bender (at MBM, we use our hands!), form the brake lines as needed to reach the rear caliperd from the T-Fitting without being caught up in the suspension. Pay a lot of attention to the LCA travel.... It should come out looking something like this picture. The fittings on the hose are metric, so pick up a set at the auto parts store while you are buying the line, fittings, and brake fluid.

 

Step 19: Remove the calipers from the mounting brackets, install your rotors, then put the calipers back on. Tighten them down. A lot. Be sure all of your fittings are nice and tight (but remember they strip very easily...).

 

Step 20: Install the shocks and springs, bleed the brakes, mount the wheels, and drive that open exhausted beast to the muffler shop to get the Cobra catback modified to fit on your H pipe. The modification is pretty simple and you shouldn't have to pay more than $75 or so to get the whole thing up and running. You have to shorten the catback pipes to meet your existing H pipe and make a new rear hanger bracket for the rearmost mounting point. The mufflers and tailpipes fit perfectly! Here's a picture of our Bassani catback ready to go! You may want to swing by the alignment shop on the way home! Have fun and don't blame us if you kill yourself....

Back to Part 1 - The Hard Stuff


 
Mouthbreather Motorsports: Doing it the hard way is the only way!
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