Originally Posted by JRitt@essex

It's possible on the street without breaking the law, but you have to condense the process.

Here's a video I did on bedding in brakes. In the video I never go above 60 mph, and I'm able to get a nice pad transfer layer. The higher the temperature threshold of the pad, the more heat you have to pour into them to get them to stick to the disc face.

The idea when doing the bed-in at lower speeds is to condense the entire process and make sure the brakes are cooling down as little as possible between stops. In most cases, people don't get their brakes hot enough during the process. They start to smell the pads or see a little smoke, potentially freak out, and quit.

Going faster just makes the process quicker. A stop from 110mph down to 30mph is changing far more kinetic energy to heat vs. a stop from 60mph down to 30mph. You can still ramp the heat up enough with stops from 60mph, but you'll just need more cycles with less time between. Hopefully that makes sense.

Originally Posted by 996tnz

I did this too. Calculating the lower speed ranges is slightly tricky as kinetic energy is proportional to the square of the speed (ie 100-50 uses twice as much energy as 50 - 0 in a vacuum), but there is less air rush cooling the the pads at lower speeds, so the ratio might be 1.8 to 1 or so.

Can't remember what I worked out exactly but on an empty section of freeway my first attempt still didn't get them hot enough to whiten the yellows, so I did it again. Keeping a close eye on the speedo while basically riding a rollercoaster left the most car sick I've been since I was a kid BTW (and I have no problem with Autocross, skidpans, track etc). It did the job though the second time around. The Pagid RS 19/29 yellows are endurance pads and I think you'd want to either have a very tight track or be on it by yourself if hoping to bed them in properly there.

Originally Posted by dan212

The basic idea is to get some real heat in them. Some hard braking as best as you can (you don't need to come to a stop), and then some lighter applications followed by cool down..

The main things is to get a stink from the brakes, and then you can do the lighter applications and cool down.

You won't hurt them. If you do it right they are bedded in. If you don't they just aren't bedded in enough. If this is a street car and you find the brakes squealing after a while one or two hard brake applications will do the trick.. Really the same principal.

Originally Posted by Matt Romanowski

Am I the only one that noticed this is a 9 year old thread that was bumped by spam?

Originally Posted by Matt Romanowski

Am I the only one that noticed this is a 9 year old thread that was bumped by spam?

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