I contacted Racingbrakes to see if they would help develop a rear caliper relocation bracket for us. Giving us the advantage of larger rotors and providing longer brake torque arms. Hoping this could help reduce / eliminate brake bias for us front BBK equipped cars.

Racingbrakes will help develop the kit, as long as we show interest and support for the development.

The link I have provided were emails that I had sent to Warren at Racingbrakes, the decided this maybe a lucrative investment to them and would help develop it. I can only assume that pricing would be similar to the front setup, which very reasonable for what’s provided.

http://forums.racingbrake.com/viewto...37b661233429ba

Guys, I’m not a braking guru at all. I need as much help as I can get! I’m happy to help Racingbrakes develop the kit, and am willing to let them use my car for measurements.

Thanks guys

 

you don't want to relocate the rear caliper, unless you're willing to replace the parking brake cables with custom as well.

the parking brake cables aren't long enough to move the caliper away from the rotor more than 1/4" or so before causing the caliper to bind up.

Then you have to go and find a bigger rear rotor that will fit inside the caliper. by the time you make a custom torque arm, rotor, and brake lines, you're looking at the price of my rear 300ZX brake kit, which works perfectly with my front BBK setup.

 

I applaud your effort, but don't think it's really worthwhile, honestly, because:

1. As Matt noted above, there is already a kit available for those who really want one (and it's bettes than just using the puny OEM rear calipers)

2. I have z32 calipers/6th gen rotors up front and have noticed no problems with brake bias/distribution. I have very limited interest in upgrading the rears unless it can be done dirt cheap.

3. simply relocating the stock calipers outward with larger rotors will have only a minor effect on bias since the pad area is still the same, even with a larger rotor. The front relocation bracket was less to increase braking power than it was to reduce the so-called "warping rotors." There is no such problem in the rears, so it is unlikely that many people would pony up money for such a marginal upgrade.

4. Brake bias can be adjusted/mitigated through use of differnt pad compounds on front and rear. Want more rear bias? Get rear pads that bite harder and fronts that don't bite as hard.

Again, kudos for the idea, but i'm going to have to agree with Matt on this one - that the result would not necessarily justify the expense for most people.

 

^^^^^^ WORD......although I also applaud the effort

 

Irish great post. But IMHO a bigger rotor makes a pretty significant difference. I was talking to a 3-gen guy that did the rear bbk on the 3-gen before doing any of the front stuff. His rear brake pads wore out noticably faster. Clearly they are doing quite a bit more work for only a 1" dia diff.

I've also noticed big difference on my 3-gen when using the Cobra bbk and then installing the rear bbk. This is with the oem pads also.

Also many that only do the 300z caliper conversion on the oem Z 11.4" rotors, report marginal brake differences (but alot better fade resistance). Those that have the same calipers but use the 12.x" or 13" cobra rotors report huge differences in brake force.

I believe this is why AEM offers an oem caliper bbk for Hondas. The G35 also has an oem bbk offering from RacingBrake I believe.

 

After a little bit of thought while smoking a cig and looking at the car parked out front, I was thinking a little bit about the issue involving the length of the ebrake cable being one of the major hurdles to overcome if relocating the rear calipers.

As you may or may not know, the lever arm that is attached between the end of the cable and the caliper is easily removeable. the solution would be to fabricate a longer lever arm out of something strong (steel) that would extend farther out and have an "S" curve downward the same distance you would be moving the caliper outward, to allow use ofthe stock cable.

Just some food for thought.

 

more:

http://www.ecstuning.com/stage/suppo...g-Stage1R.html

 

meh. I still wouldn't simply relocate the stock calipers outward. in order to get significantly more rear bias, you're going to have to go up to a 13" rotor in the back... by the time you do that, there will be so much unused surface area back there that it will be hideously ugly, and you're still not solving any problems. remember that part of the issue here is lack of brake pad compounds for the Maxima, not just a 'lack' of a rear BBK.

To solve that problem, you need to go with a caliper that has more piston area and more aftermarket support.
The first one any of us will point at is the Z32 or Z33 rear calipers. perfect!

The problem with those guys is that they don't have a parking brake built into the caliper like our stockers do. Sooo, in order to have a safe car (and we all know you guys like to do FWD burnouts w/ the parking brake!), you'll need to fabricate a drum-type parking brake internal to the rear discs. a la Z32 or Z33. a la my rear BBK. it solves all of the issues currently present. the only issue it doesn't solve is cost. it's not cheap, but you also have to consider the huge amount of work necessary to create, source, and machine the parts. not something you can just run to a junkyard and pick up, or machine a single piece of metal and call it a day.

 

floating calipers are