DIY Brembo BBK

[PropellerHead]

Originally Posted by bcredliner

That is hydraulic pressure which is balanced per design.

My reference is to the balance or imbalance of friction generated by pads against rotors and the grip of associated tires from wheel to wheel.

Ahh. I see. So basically, whether you put on big brakes, have worn OEM, or you've just redone the stock brakes, tires are what's doing the work. Shitty tires very well could mean shitty stopping distance whether we have ginormous brakes or the OEM- at least the first time.

Perfectly sensible.

[bcredliner]

Look at it this way--if you can slam on the brakes and the ABS kicks in, to decrease the stopping distance anything significant, increase the grip of the tires.

Assuming braking activates ABS:
1) Current brakes, slotted rotors, high friction pads and stainless brake lined results in more stopping power sooner, some decrease in stopping distance-- low expense.

2) Bigger brakes, bigger pad surface area results in more stopping power sooner and some decrease in stopping distance--greater expense.

3) Bigger brakes, bigger pad surface and greater traction tires results in more stopping power both sooner and ongoing and greater decrease in stopping distance.

1 and 2 will deliver similar results.

[semcoinc]

Exactly, by bringing bigger brakes into the equation you are potentially moving the weakest link in the friction chain down to the tires and their grip or lack thereof to the pavement.

Commercial airliner brakes are designed to such a standard as to be able to lock up the rubber and create so much heat as to blow the tires out. This is to create as much braking/stopping forces as possible to effect an emergency stop in as short a distance as possible.

Once you maximize the braking forces at the pads and rotor you're moving on down the stopping chain to the next weakest link.

But yeah, I'd put bigger calipers on if I had the opportunity and the budget for it.

I upgraded my 4Runner to the Tundra brakes for a nice easy DIY stopping upgrade.

Mike

[PropellerHead]

Originally Posted by semcoinc

Exactly, by bringing bigger brakes into the equation you are potentially moving the weakest link in the friction chain down to the tires and their grip or lack thereof to the pavement.

Tires by their nature are *always* the weakest link to performance no matter the brake system, engine, or suspension. It *all* gets done through 4 little patches of rubber.

[StephenVA]

Originally Posted by PropellerHead

Tires by their nature are *always* the weakest link to performance no matter the brake system, engine, or suspension. It *all* gets done through 4 little patches of rubber.

[V8 00USH]

Look spot on - impressive they are more or less a direct fit. Are they off the later Range Rover?

Definitely looking at doing similar to mine at some point. I've got a set of Mclaren AP 4 Pots lying around I can probably utilise with a suitable disc. All I need to do is fab up a couple of brackets and make a couple of lines up.

[Joshdub]

Some of it is just braking feel too. The stock x5 brakes feel like crap even with new quality components when compared to multipot brembos. Sure it stops, but it feels weak. Similar idea to installing a catback.

[X53Jay4.8is]

Originally Posted by V8 00USH

Look spot on - impressive they are more or less a direct fit. Are they off the later Range Rover?

Definitely looking at doing similar to mine at some point. I've got a set of Mclaren AP 4 Pots lying around I can probably utilise with a suitable disc. All I need to do is fab up a couple of brackets and make a couple of lines up.

The set of calipers that I sourced came off of a 2014 Range Rover Sport

[blabla30]

Originally Posted by X53Jay4.8is

Gonna do the fronts first. Rears will be a set of the Porsche calipers. They are an easier retrofit then the front.

Which are these? And which disc do you use?

[X53Jay4.8is]

Originally Posted by blabla30

Which are these? And which disc do you use?

996 caliper and you can use your current rear disc.