well the dealership told me that I needed new front rotors...i knew i was gonna have to get new pads soon but rotors didnt expect.

asked him if we can turn them and he said "the rotors in the Z are made of a soft performance compound and is not recommended to turn them, need to replace them"?

is this true? if so, what is the average mileage for rotor replacement? i checked them in june and there were no warps and they didnt seem like they needed replacement.

got an 04 enthusiast AT with 45K

 

Use a micrometer and check thickness, if there is still a lot of meat left on them (not sure the minimum thickness, but someone might chime in with it) then they can be cut. Most dealers today DO NOT cut rotors due to reliability issues. Also, they will make more money on the sale of OEM rotors vs. cutting rotors. If you don't mind doing the work yourself and if you need the rotors cut, many auto parts stores cut rotors for like $20 each. Rotors should be good for AROUND 50-80k depending a lot on how you brake. If there is a lot of meat and you feel no pulsing in the brakes, I wouldn't even bother, just install new pads and call it a day.

***EDIT***
found and copied from nicoclub
minimum front rotor thickness limit 20.0 (0.709) mm (in)
minimum rear rotor thickness limit 8.0 (0.315) mm (in)

just double check in the service manual that these are accurate measurements. You can get a micrometer for a couple bucks at any auto parts store and it takes 30 seconds to measure the rotors.

 

No,thats not true. You can turn them. All turning machines have a thickness meter so they can know how much to take off each team. Of course, if your rotors are warped, they will have to be turned a couple of times, and if they see that it will take too many time, they won't do it.

 

thanks for the info, really appreciate it. i wish i checked the thickness before i took them to service...kind of too late but lesson learned

 

I just realized......I meant to say:
Most dealers today DO NOT cut rotors due to liability issues.

 

As StreetOC192 mentioned, How thick are the rotors? Of course dealers would rather sell you new rotors than turn the old ones.

 

Selecting a softer grade of cast iron is primarily a noise thing, inthat the pads transfer material to rotor that film is what supplies the braking friction.

Harder longer wearing rotors will increase noise.