Christmas in mid June?! Thank you STaSIS! My rear BBK is here…

[Jet Jockey]

This was at my door when I arrived home this afternoon.




Aluminium caliper brackets.




Alcon two piston aluminium calipers.




Alcon rotors with their aluminium hats. Their size ~ 298mm by 21mm.




STaSIS even put heat sensitive paint on them so I can see what temperature I will reach on the track.




Performance Friction race pads, model PFC 01. I ordered two sets of fronts and two sets of rears. I’m waiting on some street compound versions. In the mean time I will continue to use Ferodo 2500s for the street.

[A4ringedONE8T]

WTF! Why dont they sell those to the public?

[Jet Jockey]

WTF! Why dont they sell those to the public?

It's a race kit that is used on their cars and is not legal for the road (no emergency/parking brake)... Think I care?

[mtbrider]

interesting

[Jet Jockey]

interesting

No I won't be able to use the parking/e-brake. For now I will leave the lever and cables in place in case we come up with a solution and also not to attract too much Police attention (if they ever looked in) LOL.

[Carbon]

No I won't be able to use the parking/e-brake. For now I will leave the lever and cables in place in case we come up with a solution and also not to attract too much Police attention (if they ever looked in) LOL.

thats funny, considering the inside of your car looks like a race car anyways

[mxrz]

What alloy are those brackets made from? They look awfully tall and thin.

[dirtybrd]

Here's you a parking brake.

[A4ringedONE8T]

It's a race kit that is used on their cars and is not legal for the road (no emergency/parking brake)... Think I care?

I've inquired about one many times. I couldnt careless about the lack of an Ebrake. I live in FL, the biggest hills we have here are made by ants

[T0M3K]

So, why can't you use the parking brake?

[A4ringedONE8T]

So, why can't you use the parking brake?

The calipers have no mechanical movement aka "parking brake" built into them. You would need to use a Hurst line lock or add an additional ebrake caliper

[dirtybrd]

So, why can't you use the parking brake?

It's built into the stock caliper

[Jet Jockey]

What alloy are those brackets made from? They look awfully tall and thin.

Don't know and I'm not about to second guess them on that design when this kit as been used for a long time on their race cars. It works, it's reliable and that's good enough for me.

[dirtybrd]

The calipers have no mechanical movement aka "parking brake" built into them. You would need to use a Hurst line lock or add an additional ebrake caliper

A line lock won't work as it requires power to hold it shut. There are companies that make locks that use pulses of power to run them. Hit the switch once and it closes and again to open it.

[mxrz]

So, why can't you use the parking brake?

Because the aftermarket calipers don't incorporate the parking brake mechanism.

[mxrz]

Don't know and I'm not about to second guess them on that design when this kit as been used for a long time on their race cars. It works, it's reliable and that's good enough for me.

I'm asking because I'm about to make my own, so I'd like to know which alloy works best.

[Jet Jockey]

I've inquired about one many times. I couldnt careless about the lack of an Ebrake. I live in FL, the biggest hills we have here are made by ants

Well I understand your point of view believe me but perhaps STaSIS is worried about legal issues.

Also another point to remember is that the small master cylinder on the A4 wouldn't work properly with this kit because of the added size of the pistons in the rear calipers.

That is why I went for a full blown race pedal system (Tilton) so that I could have the proper individual master cylinders to operate the race kit properly.

[RLB6]

Those are sweet

BUT.... I'll stick with brembo rears

[Jet Jockey]

A line lock won't work as it requires power to hold it shut. There are companies that make locks that use pulses of power to run them. Hit the switch once and it closes and again to open it.

My understanding about line locks is that they are also illegal for road use especially as an e-brake solution because they rely on the same hydraulic lines as the regular brakes.

As for a separate caliper that is a possibility because some fancy sport cars used them (CGT for one) but here again I believe you need both rear wheels to be equipped with them to stop the car in case of a brake failure.

[mxrz]

Those are sweet

BUT.... I'll stick with brembo rears

We can take bets on who's setup "works" better.

[A4ringedONE8T]

Well I understand your point of view believe me but perhaps STaSIS is worried about legal issues.

Also another point to remember is that the small master cylinder on the A4 wouldn't work properly with this kit because of the added size of the pistons in the rear calipers.

That is why I went for a full blown race pedal system (Tilton) so that I could have the proper individual master cylinders to operate the race kit properly.

The new Brembo 4 wheel setup seems to work pretty damn well, better than my Alcon's I will say

[DELUX]

I'd take Brembo over Alcon too. Brembo in my opinion has the strongest rotors and the fact that they're the only brake manufacturer that has their own exclusive forge is pretty impressive. Nonetheless, Alcons are great brakes as well, most likely equal in quality. I would simply take Brembo if I were spending that much money.

[Firefighter637]

I would love to come home and see that on my front door. You lucky mofo! One day...I will have some...brembos of course. :)

[RLB6]

We can take bets on who's setup "works" better.

I'll be more willing to bet on my setup as it has been specifically designed to work with OEM master cylinder AND not to mention I'm running the M 6-piston caliper setup up front.

[F16HTON]

FWIW I own STaSIS/Alcons (370mm front and 298mm rear) and Brembo MS is a much better setup.

[mxrz]

I'll be more willing to bet on my setup as it has been specifically designed to work with OEM master cylinder AND not to mention I'm running the M 6-piston caliper setup up front.

You'd lose that bet. But it's understandable, considering how much you spent on that beauty queen BBK.

[A4ringedONE8T]

You'd lose that bet. But it's understandable, considering how much you spent on that beauty queen BBK.

Jet's setup on a typical A4 vs the Brembo 4 wheel kit, Brembo's would win, sorry

[Papachristou]

i wouldnt complain if i had either kit both are very nice and no doubt provide substantial increases in braking power

but maybe you guys can see who can piss farther?

[mxrz]

Jet's setup on a typical A4 vs the Brembo 4 wheel kit, Brembo's would win, sorry

That's irrelevant, I'm taking about Jet's setup specifically, which includes all aspects crucial to braking performance, like curb weight, weight distribution and pad material, among others. So, with that in mind, RLB6's setup just looks pretty, that's all. I'm sure Jet will also be able to tweak the brake bias, which is something RLB6 can't do, so he's stuck with the OEM like, front bias, because just like understeer, it's safer for the general public, but it's a compromise when it comes to pure braking performance. Those huge Brembos won't stop the car any quicker than a much smaller, 4 piston in front, 2 in back kind of setup could, with rotors as small as 310mm. Sure he's got lots of fade resistance, but really, on a slushbox equipped car? What's the purpose? Also, four larger pistons are easier to modulate than six or eight tiny ones.

But hey, if he bought his Brembos for looks only, he couldn't have done better

[RLB6]

Those huge Brembos won't stop the car any quicker than a much smaller, 4 piston in front, 2 in back kind of setup could, with rotors as small as 310mm.

I hope they don't do random drug screening at your job. That statement right there makes you a prime candidate

But hey, if he bought his Brembos for looks only, he couldn't have done better

Sorry, you could only BARELY, I mean BARELY do better than what I have..for looks that is

[RLB6]

I'm taking about Jet's setup specifically, which includes all aspects crucial to braking performance, like curb weight, weight distribution and pad material, among others.

Now, imagine if he had my setup on his ride.

[mxrz]

I hope they don't do random drug screening at your job. That statement right there makes you a prime candidate

I'm self employed, I can go to work being as high as a kite if I wanted to... But I digress. Even a small rotor with a four piston caliper can generate enough braking torque (simple math) to surpass the friction coefficient of your tires, in relation to the mass of the whole car and its weight distribution. And what stops a car? The tires, not the brakes.

Your BBK is an expensive beauty queen, your rear setup especially. Your car is front heavy so the actual effectiveness of your rear brakes, during weight transfer, becomes so small, the stock single piston caliper, with a sub 300mm rotor is perfectly up to the job of keeping up with the front. That's why Stoptech doesn't even bother with the rear, and Alcon suggests only a better rotor, and only for better heat dissipation, not for more brake torque.

You should look up piston sizes too. You might have more pistons, but they're smaller.

[Jet Jockey]

I'm self employed, I can go to work being as high as a kite if I wanted to... But I digress. Even a small rotor with a four piston caliper can generate enough braking torque (simple math) to surpass the friction coefficient of your tires, in relation to the mass of the whole car and its weight distribution. And what stops a car? The tires, not the brakes.

Your BBK is an expensive beauty queen, your rear setup especially. Your car is front heavy so the actual effectiveness of your rear brakes, during weight transfer, becomes so small, the stock single piston caliper, with a sub 300mm rotor is perfectly up to the job of keeping up with the front. That's why Stoptech doesn't even bother with the rear, and Alcon suggests only a better rotor, and only for better heat dissipation, not for more brake torque.

You should look up piston sizes too. You might have more pistons, but they're smaller.

Guys I did not want this to be a piss off contest between brake systems.

However mxrz is basically correct on all counts.

Also if you have the small OEM B6 A4 master cylinder in your car chances are it won't supply properly all your brake pistons/calipers unless Brembo took that into account which I doubt.

On the other hand my STaSIS/Alcon set up is properly calibrated with the proper independent master cylinders to work with the proper size pistons in the calipers. It is also a well proven race set up they have been using for years now so again I doubt your Brembo set up will be as good or as efficient as this set up.

BTW, I could have gone with the Alcon 6 piston set up but even STaSIS says it's overkill for my car and indeed for their race cars. This would also require another set of master cylinders to make the system work properly. The advantage I have is that it can be easily done on my car but not on a stock A4.

I'm glad you are happy with your Brembo set up and I'm sure it is a good set up especially for street use.

That's it and that's all... Enough arguing please just enjoy what you have on your cars!

Just my $0.02.

[20A4Audi1.8t01]

its always nice to come home and see new goodies on your door step!

[darkstar]

Jet you're my hero!

[RLB6]

Guys I did not want this to be a piss off contest between brake systems.

However mxrz is basically correct on all counts.

Also if you have the small OEM B6 A4 master cylinder in your car chances are it won't supply properly all your brake pistons/calipers unless Brembo took that into account which I doubt.

On the other hand my STaSIS/Alcon set up is properly calibrated with the proper independent master cylinders to work with the proper size pistons in the calipers. It is also a well proven race set up they have been using for years now so again I doubt your Brembo set up will be as good or as efficient as this set up.

BTW, I could have gone with the Alcon 6 piston set up but even STaSIS says it's overkill for my car and indeed for their race cars. This would also require another set of master cylinders to make the system work properly. The advantage I have is that it can be easily done on my car but not on a stock A4.

I'm glad you are happy with your Brembo set up and I'm sure it is a good set up especially for street use.

That's it and that's all... Enough arguing please just enjoy what you have on your cars!

Just my $0.02.

Do you honestly believe that shit you're shoveling? I'll leave it at that.

[RLB6]

I'm self employed, I can go to work being as high as a kite if I wanted to... But I digress. Even a small rotor with a four piston caliper can generate enough braking torque (simple math) to surpass the friction coefficient of your tires, in relation to the mass of the whole car and its weight distribution. And what stops a car? The tires, not the brakes.

Your BBK is an expensive beauty queen, your rear setup especially. Your car is front heavy so the actual effectiveness of your rear brakes, during weight transfer, becomes so small, the stock single piston caliper, with a sub 300mm rotor is perfectly up to the job of keeping up with the front. That's why Stoptech doesn't even bother with the rear, and Alcon suggests only a better rotor, and only for better heat dissipation, not for more brake torque.

You should look up piston sizes too. You might have more pistons, but they're smaller.

Um, yeah. sure.

[Jet Jockey]

Do you honestly believe that shit you're shoveling? I'll leave it at that.

LOL... What ever!

[mxrz]

Do you honestly believe that shit you're shoveling? I'll leave it at that.

Um, yeah. sure.

For your own good, educate yourself: http://www.stoptech.com/tech_info/te...e_papers.shtml

[dirtybrd]

Sorry RLB6, but they are both correct. To a certain extent size doesn't matter. Of course a larger rotor with dissipate the heat better and make fade nonexistent but, are you tracking you car? Also you have to factor in the ABS. With ABS, if you car will engage it and your stopping distance is (just throwing a # out there), 200ft. a bigger caliper and rotor will not make it stop shorter but will allow it to do that same 200ft. stop 20 times. Where the stockers will just fade and the distance will start increasing.