I wanted to post this as a resource for others looking to upgrade to a big brake setup using inexpensive Honda parts from the salvage yard.
Inexpensive way to have big brakes on your 88-91 CRX/ Civic
Needed:
Calipers and caliper brackets from a first gen Honda Odyssey or first gen CRV and many other cars but I don’t have a complete list but they are the same ones on the Acura ITR, good luck finding that in your local salvage yard. You are looking for the calipers labeled 17CL15VN and the brackets will be labeled either 23T or 25T, either will work. The 23/ 25 are the thickness of the rotor.
Rotors from 90-01 Acura Integra or 90-91 Civic EX, 92-95 Civic sedan (10.3”)
15/16” Master Cylinder – 90-93 Integra
4040 prop valve – 90-93 Integra or a 3540
You will need to modify the caliper brackets. Each one will need about 3mm machined off where the bolts go through to allow for clearance with the rotor. You will also need to cut some of it from the center of the bracket to prevent it from rubbing on the hub. I also had to grind about 1mm off the outside curved edge of the bracket to prevent it from rubbing on my 15 inch wheels but had no issues with my 14 inch wheels. Your wheel design may or may not clear without that modification. The machine shop charged me $50 to do the work on both brackets. This is hard to explain where the extra metal needs to come off but when you try to put the parts together you easily see the clearance problems.
You may also need to grind 1mm off the outside brake pad because this will also scrape on the inside hub. This might vary by pad brand.
This setup will add a bit more weight over the stock setup. Here are some weights of different components:
HF Knuckles – 14.2 Lbs (RH3-H/ LH3-L) (with bearings, hubs, and ball joint installed, 9.1 Lbs bare)
HF calipers (with bracket, no pads) – 5.8 Lbs
HF rotors – 7.0 Lbs (8.9”)
SI Knuckles – 14.9 Lbs (RH3-H/ LH3-H) (with bearings, hubs, and ball joint installed)
Calipers (with bracket, no pads) – 7.1 Lbs
Rotors – 9.0 Lbs (9.5”)
90 Integra Knuckles – 14.9 Lbs (RH3-H/LH3-H) (with bearings, hubs, and ball joint installed)
90 Integra calipers (with bracket, no pads) – 8.75 Lbs (17CL14VN)
90 Integra rotors – 11.0 Lbs (10.3”)
17CL15VN calipers w/ brackets from 1st gen CRV or 1st gen Odyssey – 11.5 Lbs