ssrunner

I just received in the mail a set of BMR C5 upgrade brake brackets. I got them because they're chrome-moly and cheaper than the other brackets I looked at. However I did not realize that to install them you have to cut one of the mounting brackets off of the spindle, unlike the LG brackets (I think).

I was planning on reusing my stock calipers (car is a 2000) since it was my understanding that they are completely interchangeable with the C5 calipers (which basically are pressure cast as their only pertinent difference). Is this plan going to work? I wanted to make absolutely sure these parts will all fit together right before I start taking a saw to my car.

Thanks for your help!

shaun

best bet would be to call bmr and ask them.

ssrunner

Yeah that is an option... but I would have thought someone would have done this by now. If the C5 and f-body calipers are interchangeable, I see no reason why this can't be done...

Anyone else have an opinion?

EchoMirage

iTrader: (3)

no they are not interchangable. the C5 calipers are bigger. thats why they take bigger pads to go with their bigger rotors, which is the entire reason of doing the swap in the first place. if, for some reason, you insist on using LS1 calipers, then its possible to use C5 rotors, C5 abutment brackets, and LS1 calipers. but why anyone would want to do a rotor swap and not caliper i dont know.

9000th01ss

iTrader: (10)

You're wasting your time in the name of the almighty dollar.

The F Body calipers are **** period.
They deflect and put more pressure on the outer diameter of the rotor on the wheel side, this overheats it and warps it.

Get C5 calipers or send the parts back for a refund.

JMHO---you asked for it.

ssrunner

Ok, so if the f-body calipers aren't interchangeable, then what about the LG brackets allows you to use them with the C5-sized rotor? Is it still a less-ideal solution than using the C5 calipers for the same reasons?

And what additional parts will I need then, just C5 Z06 calipers and pads?

EchoMirage

iTrader: (3)

its still less then ideal. if youre doing that, you might as well do the entire conversion and use C5 calipers and pads. youll need the bracket, calipers, abutment brackets, pads and rotors.

FYI, C5 Z06 calipers are just red. no differance.

ramairjohn2000

iTrader: (3)

cheaper and just as effective move, which i did and love
baer eradispeed rotors, stock calipers, hawk pads!

ssrunner

So I can use the guide pins, boots, and banjo bolts from my old calipers?

hpjunky98

iTrader: (3)

Theres a bit of misinformation here. The C5 calipers, because they were designed to be run with a larger rotor, have smaller diameter pistons. The F-body calipers have larger pistons (which is better for front brake bias), and are interchangeable pad and rotor wise, with the bracket you bought. For racing, the Vette calipers are better because they are pressure cast rather than gravity cast, but for the street, the stock calipers can be used in your application just fine.

ssrunner

That was what I had thought... but I'm going to start Auto-Xing this summer since my suspension setup is basically done, so I might as well do it right the first time now... already ordered Z06 calipers/abutment brackets.

But like I asked before, I should be able to use the old guide pins/boots and banjo bolts, right?

9000th01ss

iTrader: (10)

Why? Why would you buy all that new stuff and skip out on the inexpensive parts?

ssrunner

"Inexpensive" is like $40 when you're dealing with gmpartsdirect. Though I haven't looked at the prices at other places yet.