Does anyone know how many pistons are in the front calipers and the rear calipers of the stock 05 brakes? And in stopping distance, are they about the same as the Brembos?

 

Not sure about the first part, I can look it up later if no one posts an answer. But the 05 stops faster by a few feet if I remember correctly, but the brakes fade a lot quicker under heavy use so they arn't as good for the track.

 

The new brakes have a single piston front and rear. The Brembos have 4 in front and 2 in rear.

Lou

 

does it make a big difference between a single piston and a 4 piston or 2 piston?

 

why dont you ask endless who made the 12 piston calipers? heheheh! endless is so dope! but yea...its make a difference.

 

yes....more pistons means better stopping power/force so shorter stopping distances.....

 

Isn't the stopping distance for 05' coupes almost exactly the same as the 04' and 03' coupes that had brembos? I thought the only real difference was that the brembos wouldn't fade as easily. I've never been in any other coupe other than my own, but my 05' feels like it has pretty good stopping power.

 

Actually it's 2 piston front 1 piston rear.

 

Actually - IT'S NOT!

Lou

 

Check out the pics on infinitinews.com. Definitely 2 piston fronts.

 

Just maybe you can't count, or don't know know a High Performance Brake when you see one. The front has 4 pistons, two on the outside, and two on the inside. They both push equally on the rotor. The rear has one and one or 2. The stock brakes have 1 piston that pushes the rotor against a plate on the oppposite side of the rotor.

Now stop arguing about something you know nothing about, and stop looking at pictures and actually read something.

Lou

 

I'd love to have the big-brake look, but without tracking the car, it's just not a cost I can justify. The '05 brakes are adequate for around town. I would like to switch to braided stainless-steel lines and better pads for better pedal feel and better performance during sustained spirited driving, but that's about as far as I could go.

But the rear is begging for larger rotors.

 

Most aftermarket brake manufacturers use additional pistons for better distribution of braking force and o provide better feedback to the driver.

1. Most after market brakes are an opposed piston design. This means that you have pistons located accross from each other on each side of the rotor. When brake pressure is applied the pistons pinch the rotor to bring the car to a stop. The majority of stock brakes (including the brakes on the 05 G) use a slider design. A slider consists of one or more pistons located on one side of the rotor that push only on that side of the rotor. This causes the slider on the other side of the rotor to clamp against the rotor. From what I've read, the slider is actually a more efficient design as far as the first stop goes, BUT opposed pistons provide better pedal feel and brake modulation. They also allow for better cooling (see below) which helps prevent brake fade over additional stops.

2. You'll also notice that many after market manufacturers use several pistons in their design (4, 6, 8, etc.). Generally, more pistons does not mean significantly more stopping power because manufacturers typically decrease the size (and clamping force) of the individual pistons when they increase the number of pistons (note that I said typically - this isn't always true). This leads to a brake that has about equal clamping power to a brake with fewer pistons. The advantage of the additional pistons comes from being able to spread the clamping force over a greater portion of the rotor (by spreading out the pistons). This helps avoid rotor hot spots and leads to faster cooling. Like number 1, it also leads to better pedal feel and, thus, allows the driver to better modulate the brakes.

This is all from what I've read. I'm by no means a brake expert so I'm sure I'm missing some important points here and there.

 

Thank you sarcasmo. Good explanations. For reference, here's a great site for brake info:

http://www.chris-longhurst.com/carbi...ake_bible.html

 

thanks for the info guys...so from my understanding the '05 brakes are just single piston front / single piston back now? why wouldn't they go multiple pistons?