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Yikes...I knew I needed new pads...but I decided to get new rotors as well. Basic Motorcraft rotors and pads (pads that are warrantied for lifetime parts).

Anyhow, I have heard you're supposed to "break in" the pads and rotors, to reduce the chance of warping the rotors. Any real tips or tricks? One tip I've heard of is doing a lot of 40/60 to 0 stops.
 

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40/60 to 0 stops.
never to a complete stop... you want to do this on an open road with no stop signs, lights, or turning traffic.
from Hawk Brakes:
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Q: What is the proper procedure for braking in new brake pads?
A: Brake pad break-in procedure.

After reaching medium speed engage brake pedal to slow car without coming to a complete stop. Release pedal quickly and do not drag brakes. Repeat four or five times.
At higher speeds engage brake pedal to slow car without coming to a complete stop. Release pedal quickly and do not drag brakes. Repeat five times.
At or near race speed engage brake pedal to slow car without coming to a complete stop. Release pedal quickly and do not drag brakes. Repeat three times. Allow a few seconds between brake engagements while car is in motion.
<font color="blue"> Do not hold brake pedal. </font> Park car for approximately 20 minutes or until brake rotors are completely cool to the touch.
If during the above steps the brake pedal becomes soft or brake fade is noticed, park the car immediately for approximately 20 minutes. Do not hold brake pedal.
Important reminders:

Do not attempt to use badly worn or damaged rotors with new brake pads.
<font color="blue"> Do not drag brakes while car is moving during break-in procedure. </font> ( why to do it on open highway, with no turning traffic)
<font color="blue"> Do not engage pedal while car is stopped at any time following the break-in procedure. </font> (this leaves a pad print on the rotor that you swear feels like a warped disc)

Upon completing the procedure, allow the brake system to completely cool before racing.
Applying the pedal a few times before the start of the race will allow the brake pads to heat up before attempting to reach race speeds.
Clean a used rotor surface with fine sand paper or steel wool, rinse with water, dry and install before bedding new pads.
Some forms of racing don't allow time for the proper break-in procedure to be performed. However, it is still very important to attempt to perform at least the core of the procedure: <font color="blue"> slow heat build up and complete cool down. </font>
 

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FYI, it varies from pad to pad. Normally, there will be a set of bed in instructions included with the pads and rotors. For general information, I have included the procedures for the various pads/rotors we carry:

All brake pads must be bedded-in with the rotor they will be used against to maximize brake performance. Recommended bed-in procedures for newly installed brake pads and rotors are as follows:

AKEBONO

400 to 500 miles of moderate driving is recommended. Consumer should avoid heavy braking during this period.

BREMBO Gran Turismo

In a safe area, apply brakes moderately from 60mph to 30mph and then drive approximately 1/2 mile to allow the brakes to cool. Repeat this procedure approximately 30 times.

HAWK

After installing new pads make 6 to 10 stops from approximately 35 mph with moderate pressure. Make an additional two to three hard stops from approximately 40 to 45 mph. Do not allow the vehicle to come to a complete stop.

NOTE: Hawk racing pads (Blue, Black, HT-10, HT-12) may require a different bed-in procedure. Contact your sales specialists at The Tire Rack for racing application information.

KAZERA

Follow the brake pad manufacturer's recommended break-in procedure taking care not to produce excessive heat in the system. Avoid heavy braking for the first 400-500 miles.

POWER SLOT

Follow the brake pad manufacturer's recommended break-in procedure taking care not to produce excessive heat in the system. Avoid heavy braking for the first 400-500 miles.

SATISFIED

For Gransport GS6 Carbon Ceramic Pads —

Step 1: Make 10 stops from 30 mph (50 kph) down to about 10 mph (15 kph) using moderate braking pressure and allowing approximately 30 seconds between stops for cooling. Do not drag your pads during these stops. After the 10th stop, allow 15 minutes for your braking system to cool down.

Step 2: Make 5 consecutive stops from 50 mph (80 kph) down to 10 mph (15 kph). After the 5th stop, allow your braking system to cool for approximately 30 minutes. This completes the break-in of your pads to the rotor surface.

During Steps 1 & 2, a de-gassing process occurs which may produce an odor coming from your pads as they complete the break-in cycle. This odor is normal and is part of the process your pads must go through to achieve their ultimate level of performance. The odor will go away after allowing your braking system to cool for approximately 30 minutes.

As with any new set of pads, do not tow a trailer or do any hauling during the break-in period.

Full seating of your new brake pads normally occurs within 1,000 miles.

For all other Satisfied pads —

400 to 500 miles of moderate driving is recommended. Consumer should avoid heavy braking during this period.
 
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