B6 vs B7 rear calipers question

[asinclado]

Hi, I already have B7 from brakes, and I also wanted to buy a set of b7 rear calipers with carriers so i can powdercoat them and upgrade. My question is this, Is there really a big difference in size between the b7 and the b6 rear calipers? I a not concerned about the whether i get better braking or not, I just thought that b7 calipers were bigger, just like the difference between b6 and b7 front calipers. does anyone have pictures comparing both side by side? If they are similar in size Ill just take mine apart and paint them and be done with it, but if b7 are considerable bigger, I will go for the b7's. thanks

[milan2k13]

Bigger calipers= bigger pads = better braking.

[elewsader]

I can't say I've ever been able to compare the two calipers side-by-side in regards to relative size; I'd suspect the difference is marginal, but the rotors can be up to 1.7" larger depending on whether or not you have the 245mm or 255mm rear rotors currently. The added diameter allows the caliper to seat further from the center providing additional leverage, in-turn added braking power, which you will probably not be able to tell.

[MikTip]

Hi, I already have B7 from brakes, and I also wanted to buy a set of b7 rear calipers with carriers so i can powdercoat them and upgrade. My question is this, Is there really a big difference in size between the b7 and the b6 rear calipers? I a not concerned about the whether i get better braking or not, I just thought that b7 calipers were bigger, just like the difference between b6 and b7 front calipers. does anyone have pictures comparing both side by side? If they are similar in size Ill just take mine apart and paint them and be done with it, but if b7 are considerable bigger, I will go for the b7's. thanks

The B7 A4 caliper is slightly larger than the B6, but its the 43mm larger rotor, where the brake improvements come from. The B7 rear brake caliper has a
Different carrier...so it cannot be used on a B6 without the B7 rotor.

http://www.audizine.com/forum/showth...=1#post8773815

[asinclado]

Ok, i think im gonna get the b7 calipers then, im ordering them today.

[ADCS]

Bigger calipers= bigger pads = better braking.

Bigger caliper = bigger rotor diameter = pad contact further from the center of rotation = better braking.

The B7 A4 rear rotors are the same diameter as the B6 A4 front rotors (1.8t).

You should do it to balance out your fronts.

[milan2k13]

same shit.. same result, that's all that matters.

But apparently OP isn't concerned about that, which blows my mind: '' I a not concerned about the whether i get better braking or not, ''

[texasboy21]

same shit.. same result, that's all that matters.

But apparently OP isn't concerned about that, which blows my mind: '' I a not concerned about the whether i get better braking or not, ''

Upgrades brakes, and is not concerned about improved stopping power. LOL WUT?

[MikTip]

Upgrades brakes, and is not concerned about improved stopping power. LOL WUT?

"Big-brakes" are a status symbol...a macho sign of bad ass....pimp'n...etc...

[Jeff]

A bit O/T, but for those of you who have upgraded your rears--would you happen to be selling the rear setup (calipers, carriers, lines, rotors, and pads)?

I am stocking out the B6. :(

[Turbavanttro]

I a not concerned about the whether i get better braking or not

Upgrades brakes, and is not concerned about improved stopping power. LOL WUT?

Apparently not the concern.

[MikTip]

A bit O/T, but for those of you who have upgraded your rears--would you happen to be selling the rear setup (calipers, carriers, lines, rotors, and pads)?

I am stocking out the B6. :(

Pm sent

[B6A4Dave]

Semi-Necro bump.

When putting B7 A4 Rear's on to a B6 A4, do you need to get the e-brake cables as well? or just the carrier/caliper/rotor/etc?

[evo_ski]

Both the ebrake and fluid lines are the same. They connect up no problem and there are no adjustments needed. All you need are the b7 rotor, carrier, and caliper, and obviously brake pads.

[B6A4Dave]

Both the ebrake and fluid lines are the same. They connect up no problem and there are no adjustments needed. All you need are the b7 rotor, carrier, and caliper, and obviously brake pads.

Glorious! Thank you sir!

[A4orce84]

Shoot some before and after pics.

[ADCS]

Both the ebrake and fluid lines are the same. They connect up no problem and there are no adjustments needed. All you need are the b7 rotor, carrier, and caliper, and obviously brake pads.

I had to do some minor adjustments to my ebrake cable after installing B7 A4 rear calipers. By minor I mean I only had to loosen the brackets holding the line near the fuel tank to get a half inch of slack. Takes 5 mins.

And in addition to what Evo said you should also get the B7 A4 splash guards /dust shields. You can re-use the B6 ones but they won't adequately shield the rotors.

[A4Maine-iac]

I'd just like to know how the crap you get the bottom carrier bolts out. Friggen things.

[seanf86]

I'd just like to know how the crap you get the bottom carrier bolts out. Friggen things.

I think I removed the lower shock bolt on mine to make it a litle easier. Some ham fisted p/o of my car stripped out my pass rear carrier bolts, if you strip them your're probably going to have to grind the heads off and pull the carrier off and twist the left over bolt out with vise grips after you get the carrier out. My advise, hammer the allen socket into the bolt head and make sure its seated all the way.

[Charles.waite]

I nearly stripped my bolts and I'mnot hamfisted at all. They are the devil. Never want to touch those rear carrier bolts ever again!

[elewsader]

I think I removed the lower shock bolt on mine to make it a litle easier. Some ham fisted p/o of my car stripped out my pass rear carrier bolts, if you strip them your're probably going to have to grind the heads off and pull the carrier off and twist the left over bolt out with vise grips after you get the carrier out. My advise, hammer the allen socket into the bolt head and make sure its seated all the way.

Yeah, stripped mine like nobody's business, and turned a 1.5 hour job to a 4 hour job with copious amounts of MaPP gas and a PB Blaster marinated rear hub; I ended up replacing them with hex head bolts in the hopes of avoiding that situation in the future…

[seanf86]

I nearly stripped my bolts and I'mnot hamfisted at all. They are the devil. Never want to touch those rear carrier bolts ever again!

p/o didnt hammer the socket in so he twisted the top of the bolt and now the socket won't seat all the way and wants to strip when I try turning it. My b5 I had to get the carrier red hot with a torch to get the long bolt out, why audi didnt use hex bolts like the front no one will ever know lol

[senecak]

I have a socket Allen wrench specific for the rear of my car. I cut it down so it fits like it should. No removing shock bolts.