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View Full Version : E31 850i single callipers for sale



Bruno
05-15-2006, 05:50 PM
http://cgi.ebay.com/ebaymotors/BMW-e31-850Ci-front-brake-calipers-324-x-30-mm_W0QQitemZ8064457240QQcategoryZ33563QQrdZ1QQcmdZ ViewItem

Not mine, but killer price

Alexlind123
05-15-2006, 05:55 PM
"These calipers are known to be able to apply the most torque of any single piston caliper made to fit a BMW of the time for extreme stopping power."

How can pistons have torque?

Martin in Bellevue
05-15-2006, 05:58 PM
How can pistons have torque?
That is braking torque, ie, power to reduce moving mass to rest.

Alexlind123
05-15-2006, 06:06 PM
That is braking torque, ie, power to reduce moving mass to rest.

The calipers just apply direct pressure to the rotors.

632 Regal
05-15-2006, 06:23 PM
pistons are larger thus applying more squeeze.

pingu
05-15-2006, 06:27 PM
The calipers just apply direct pressure to the rotors.
Yeah, but the effect of the friction between the pads and the rotors is to produce a torque - the rotors "try" to rotate the pads with them and into the calipers; the calipers stop the pads from rotating with the rotors. Just as torque speeds you up, so it also slows you down.

joshua43214
05-15-2006, 06:27 PM
How can pistons have torque?

it can't but it sounds cool anyway =)

Torque is angular force. the rotor aplies torque to the pad, not vice versa.

angrypancake
05-16-2006, 12:04 AM
they also have a set of e34 m5 brakes for sale, also killer price.