Hello, i wanted to get everyone's opinions on this topic. my MR has 45K on it and the rotors are starting to get a lip and look very glossy. I noticed the brakes don't feel as good as they once did. Also i did put hawk street pads back at like 30K.

Looking to see if i should replace them or having them resurfaced.

Let me know your thoughts!

Thanks

 

Consider converting over to a nice set of Centric High Carbon rotors. This should freshen up your system. Consider replacing your pads as well (Stop Tech Perf pads as a suggestion)

Rotor part no. = 125.46076CRY (double check this no. for your EvO)

 

Check the Disc Thickness specs. Measure them with a micrometer, and it will tell you if its safe to resurface or not. Personally I never resurface them unless I do it. Don't trust a Joe Schmoe at the parts store, he's just gonna crank it down and cut it until its straight without measuring run out, or possibly ignoring specs.

 

You could give them a good scrub with brake parts cleaner. Who knows, maybe they picked up oils and grease in all the miles they did.

 

Do you guys change your rotors (including also having them resurfaced) every time a pad change is needed? Mitsubishi recommends that but seems.. excessive.

 

 

You change rotors on every pad change? This is Evo specific in your mind, or to every car you've owned? Assuming you've owned others.

 

Vibrations under braking aren't necessarily due to warping. It can easily be due to uneven brake pad material deposits.

Besides, if you think they're warped, there are ways to measure that. Get a runout gauge and compare the output against the service limit listed in the service manual. Saying "always replace/resurface" isn't very helpful or scientific.

 

 

 

Did you reply to the right comment?

And speaking of being upset, looks to me like you're the one frothing at the mouth. We get it, you claim to be a mechanic, congrats, you're taking ownership of this. Good for you. Clutch it with all your might.

 

 

Not taken seriously? I am curious if all Evo owners replace their rotors or have them resurfaced with every pad change. I have owned many cars, many performance cars, with this being my first Mitsubishi. I have never had any other manufacturer say that rotors must be replaced with pads. Nor have I ever experienced any issues. And I assure you, other manufacturers aren't in the business of telling me not to replace my rotors to save me money. I am curious what makes the Evo so special that it requires rotors being swapped each time.

 

Just my $.02
Any time I swap pads, I have the rotors cleaned up. I don't have them turned, but I have them gone over, by the shop (whatever sanding/scuffing method they do after turning rotors), to have a clean surface. I'm told I can clean old pad material myself, but I'd rather make sure it's done right.
If I had a lip on the rotor, I'd have that taken off.
I don't replace rotors until they are out of spec. If I see the bevel start to disappear, I start measuring.
I have yet to see a modern brake rotor warp. Everything I've read says the only way they should is if they are crazy hot then get cooled too fast (driving through water, etc) and that just doesn't happen too often, if ever. On my track car, any time I feel a "warp" in a rotor, it's usually just transferred pad material. Repeating the bedding process usually takes care of it for me. On my street car, I've never had the "warped" feeling so haven't really had to deal with it.