Anyone know if it is possible to move the larger OME Front calipers to the Rear and just upgrade the fronts to new 6 piston????

What would be needed if it can be done?

Thanks in advancce.

 

The pistons will be too large for a rear application and cause biase issues. The mounting brackets would also need to be fabbed

 

Also your rear drum E-Brake system would have to be addressed.

In short, it would require a total redesign of the brake bias system. It's much better to purchase a front/rear system that has the frt/rear bias already engineered into them.

You really don't want to Ice Skate uphill on this one.

 

If you have a 6 pot in the front and 4 (OEM) in the rear, you should be fine. I have never heard of anyone having to redesign the ebrake because of this set up. As long as you have a 6 pot upfront and 4 pot in the rear you are fine..

-sean

 

Exactly how do you know this will work? We don't know the piston sizes, rotor sizes or the frt/rear bias calculations. On what technical basis are you stating "this will be fine"?

Can you detail how one can take a front caliper, install it on the rear and retain the oem e-brake function? I'd like to know. Thanks

 

I was just thinking out loud......lol

Like Redlude said, you would have to have a custom mt bracket fabricated to mount the calipers...

Prob more trouble than its worth. Better to just buy a BBK for front and rear if you want to do anything.

Anyone want some OEM Brembos??????

Thanks!

 

I never said I was positive that it would work. As usual Jeff you have to "position" things in a argument manor, for this reason is why I personally don’t like you.

The front OEM Brembo caliper is a 4-piston caliper. If you COULD put a 4-piston caliper in the rear and a 6-piston caliper in the front then you would be fine.

The stock master cylinder controls the distribution of the front and rear, roughly 70% front and 30% back. Technically if you upgrade both front and rear the distribution will not be upset. In order for him to work it 100% efficient he would need to upgrade his master cylinder in order to move all 24 pistons vs. the stock set up. The issue that he would need to have in mind is that the stock master cylinder maybe be sufficient, but it wont be 100% sufficient. So if he goes with a 6-piston front and 4-piston rear than he is going to be fine.

That’s just my .02 cents...

-Sean

 

Now what I said only applies IF he has all the CORRECT mounting brackets and hardware.

-Sean

 

One should be more "postive" before saying something "should" work when one doesn't have any idea. IMHO I'm not here to be your friend. I'm here to discuss technical matters. If someone is giving out advice that's questionable, then I'll question it. Go ahead and feel free to question me on anything I post. I won't shy away from it. I'll address it until the issue is solved. With me being right or wrong. I won't dance around the issue. So you should do the same.

Again on what basis does that make it "fine"??? Just because the rears are xx piston and the fronts are xx piston DOESN'T make it automatically "fine".

That is incorrect. As you don't have both caliper piston area caliculations and the rotor sizes to verify this. Again when you change the piston area or rotor size, that changes the clamping force and therefore the bias calculations. And since you don't know either one of these, it's really impossible to say he is "fine" or not.

Also since the front caliper has no e-brake provision, putting the front on the rears technically makes it illegal.

That’s just my .02 cents...

 

I'm not trying to be argumentative either, but I think you are lacking some basic understanding of how a brake system works in general. Reading up on some of stoptech's articles will do you some good. Here's one that would be a good place to start. In short, good BBK manufacturers size their pistons to match stock piston sizing biases so you don't screw this up. A 4 pot rear BBK has significantly smaller pistons compared to the OEM 4pot setup because too much fluid and clamping power would be shifted to the rear. A 6 piston setup also has smaller pistons, and the total surface area should be nearly the same as the stock 4 piston brembo setup. Thats why moving the front caliper to the rear is a bad idea, because the piston area is much more than the stock area, and would screw up your brake balance quite a bit. Its not as easy as running a 6piston front with a 4 piston rear. In fact, if you sized the pistons correctly, you could put a 4 piston front kit on with a 6 piston rear and still have the correct bias, just as long as the total piston area is similar to stock.

 

in my last post i was refering to a matching 6 piston and 4 piston set up (an example you used is stoptech). I was refering him to lets say a 6 piston and 4piston kit from brembo. As for the first post i had thats why i replied in my 2nd post that i wasnt sure about it.

-sean

 

Why would you be referring to this when he clearly asked about using the front OEM brembo on the rear. IMHO there is no "kit" that can match this up.

IMHO you COULD research on a HUGE front that would increase the front bias to the point of retaining the stock bias but it's either that or run a smaller front rotor.

But again, where's the rear ebrake provision?

 

I did say IF he could.

I don't understand what your trying to say here...

I don't see how changing the rear rotor, caliper, mounting brackets, and hardware effects how the ebrake works? To my knowledge the ebrake is a drum style brake...?

 

need a good shop who does fabricating/brackets + proportioning
valve to adjust larger volume of fluid from the larger M/C for
starters

 

Yes, and then you would run into issues with pedal travel, you'd get to a point where you couldn't push the brake pedal down far enough to get full clamping power