Posi-quiet pads - my $.02

[qmchugh]

Installed them about 2 weeks ago and love them.

A little extra pedal effort on the first stop or two... when they're cold. However, when they warm up... to normal driving temp... they're incredible. Low pedal effort... not grabby... and as the name says... quiet. I have yet to hear a squeal.

I broke them in (even though they're scorched and probably didn't need it) in accordance to Dave Z's break-in write up and they've been making me smile since.

If you've been using napa/kragen/o'reilly/worldwide pads... make the upgrade to Zeckhausen's posi quiet and break them in as per his instructions. You'll be glad you did

[DZeckhausen]

Originally Posted by qmchugh

I broke them in (even though they're scorched and probably didn't need it) in accordance to Dave Z's break-in write up and they've been making me smile since.

Scorching helps eliminate "green" fade by burning off the adhesives and binders that are used in the manufacturing of the pads. This eliminates most of the outgassing that occurs on initial use and makes them much less scary than many other aftermarket pads during initial heavy use.

However, another purpose of the bedding process is to deposit a layer of pad material onto the rotors. This layer introduces an additional friction mechanism known as "adherent" friction. The result is better performance. Obviously scorching of the pads during manufacturing won't put a layer of pad material onto your rotors, so the bedding process should be followed anyway.

The "no break-in" labeling on the Centric box is admittedly a bit confusing, since it's referring to the pads and not the rotors.

Below is a photograph of one of Centric's scorching machines. To give you a sense of scale, the machine is as tall as a person (not including the stacks). It sounds like a jet engine when it's running and it consumes LOTS of fuel!