Audi R26

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Brahmal
Brahmal
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Joined: 19 Oct 2024, 05:07

Re: Audi R26

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AR3-GP wrote:
12 Mar 2026, 21:27
Brahmal wrote:
12 Mar 2026, 21:20
AR3-GP wrote:
12 Mar 2026, 20:44
Motorsport Italy says Audi is the only team running 8 piston brake caliper (4 piston per side).

https://it.motorsport.com/f1/news/f1-au ... /10804434/
The article also says "four pads." So two pads per front brake?
Four pads would mean two on each side of the brake caliper. To be clear, the 8 pistons are also distributed 4 per side of the caliper. So the front brake calipers (left and right) would have a total of 16 pistons, and 8 pads. Sounds a bit mad :lol:
Oh wow, I assumed that "4 per side" was referring to the left and right side of the vehicle, not the left and right side of the brake disc! For context, what is the typical arrangement for one front wheel? Six pistons and two pads?

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PlatinumZealot
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Joined: 12 Jun 2008, 03:45

Re: Audi R26

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is it just me or does the Audi chassis has this alien (to F1) look in the way it's constructed?
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De Wet
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Joined: 03 Jan 2024, 13:32

Re: Audi R26

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Brahmal wrote:
12 Mar 2026, 21:54
AR3-GP wrote:
12 Mar 2026, 21:27
Brahmal wrote:
12 Mar 2026, 21:20

The article also says "four pads." So two pads per front brake?
Four pads would mean two on each side of the brake caliper. To be clear, the 8 pistons are also distributed 4 per side of the caliper. So the front brake calipers (left and right) would have a total of 16 pistons, and 8 pads. Sounds a bit mad :lol:
Oh wow, I assumed that "4 per side" was referring to the left and right side of the vehicle, not the left and right side of the brake disc! For context, what is the typical arrangement for one front wheel? Six pistons and two pads?

Total overkill with all the Li-Co & electrical management. :D

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AR3-GP
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Joined: 06 Jul 2021, 01:22

Re: Audi R26

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I think having more pistons allows them to exploit the brake pad contact area more efficiently. The brake pad is not infinitely stiff. That means the force from the piston is concentrated inside the contact area with the pad. The "fringes" of the pad don't clamp the brake disc with as much force. Its wasted area.

More pistons (which are smaller) also might allow them to concentrate the force on the disc at the outer most edge of the brake disc. Due to the greater moment arm at this point, it's more efficient to bite the brake disc near the outer edge. The limit of brake disc diameter is that it needs to fit inside the wheel so you're fighting against that when you design the caliper.
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JPower
JPower
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Joined: 23 Feb 2021, 05:06

Re: Audi R26

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AR3-GP wrote:
22 Mar 2026, 15:23
I think having more pistons allows them to exploit the brake pad contact area more efficiently. The brake pad is not infinitely stiff. That means the force from the piston is concentrated inside the contact area with the pad. The "fringes" of the pad don't clamp the brake disc with as much force. Its wasted area.

More pistons (which are smaller) also might allow them to concentrate the force on the disc at the outer most edge of the brake disc. Due to the greater moment arm at this point, it's more efficient to bite the brake disc near the outer edge. The limit of brake disc diameter is that it needs to fit inside the wheel so you're fighting against that when you design the caliper.
Reminds me of the 2006-13 Corvette Z06. On the iron brake package, I think it had 6 pads for each caliper.

Brahmal
Brahmal
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Joined: 19 Oct 2024, 05:07

Re: Audi R26

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AR3-GP
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Joined: 06 Jul 2021, 01:22

Re: Audi R26

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Another good one from there. flow viz. Very clean streamlines.

Image
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AR3-GP
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Joined: 06 Jul 2021, 01:22

Re: Audi R26

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Another view of Audi's hollow wheels

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https://x.com/n_mode_log/status/2036460 ... 05/photo/2
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