Quad front brake calipers
Thread Starter
Racer
Joined: Mar 2007
Posts: 272
Likes: 2
From: West Hills CA
Quad front brake calipers
A while back I saw a guy on eBay selling brackets that let you install TWO brake calipers on each of the front rotors. I should've bought them when I had the chance 
It looked amazing! Does anyone have any information on this setup?
It looked amazing! Does anyone have any information on this setup?
Race Director
Joined: May 2000
Posts: 17,101
Likes: 4
From: No more yankee my wankee, the Donger is tired!
AO engineering used to sell a kit. Porsche tried the same thing years ago and found it was better to use a single larger caliper.
Safety Car
Joined: Feb 1999
Posts: 3,504
Likes: 4
From: Mexico Beach FL
The problem with that design is there is too much time the rotor spends covered by the caliper and pads -- not enough time to cool.
Big or multiple calipers are good for clamping force, but the also prevent cooling as long as the rotor is covered.
So, good first bite, but increased fade.
Tom Piper
Race Director
Joined: May 2000
Posts: 17,101
Likes: 4
From: No more yankee my wankee, the Donger is tired!
Race Director
Joined: Dec 2002
Posts: 13,348
Likes: 233
From: SCMR Rat Pack'r Charter Member..Great Bend KS
Since stock brakes can lock a wheel two or three times, that isn't really the issue.
Fade is.....
and, since rotor mass and cooling determine pad fade, two calipers shouldn't change those two characteristics.
I'd think doubling up on calipers would only add to (unsprung) weight.
You're probably lucky that you missed out on the Ebay sale.
Larry
code5coupe
__________
I ain't easily impressed....
Fade is.....
and, since rotor mass and cooling determine pad fade, two calipers shouldn't change those two characteristics.
I'd think doubling up on calipers would only add to (unsprung) weight.
You're probably lucky that you missed out on the Ebay sale.
Larry
code5coupe
__________
I ain't easily impressed....
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Verdad Gallardo
Team Owner
Joined: May 2002
Posts: 24,337
Likes: 25
From: San Diego , CA Double Yellow DirtBags 1985..Z51..6-speed
You could go longer between pad changes though!
Ultimately your tires are taking energy from the car's speed and dumping it into your rotors. Your rotors have to dissipate that as heat. The pads are just the intermediary. As long as the pad compound can withstand the rotor temperatures, they aren't the weak link.
Most people don't understand much about brakes and just throw parts/money at their cars until they stumble on the solution.
