mp72

My stock break are getting thin so I called Mitsubishi about having them install new pads. The guy said he recommends new rotors as well when installing new pads.

This seems odd, why would he recommend rotors as well?

ugakirk

iTrader: (14)

You prolly don't really need them. How many miles are on the car? Any track days?

beastofagony

They are trying to get an extra $300 (at least) off of you. Buy good pads online and change them yourself since it's not hard. As long as your rotors aren't under the minimum thickness (the spec is on the inside of the rotor) and there's no warping, you're fine. If you need help changing the pads, search for it on youtube.

9evolution

iTrader: (2)

Do it yourself if possible, if the rotors are within tolerances take em off and get them cut. way cheaper to do yourself. They are programed to upsell at shops

mp72

I have about 18k miles on the car and I never did any track days. The shop said that the rotors are such a hard material the are difficult to grind properly, that why the recommend new ones.

He also said they can just put new break pads in if that all I wanted.

ProjectGSX

iTrader: (3)

Is this just a street car? Dont screw around with your brakes if you are racing.

If it was my car (I dont race) id just put on new pads and forget the rotors. If they are warped you would know it.

mp72

Yes this is a street car and never been tracked. I don't drive it hard, but once and a while I really get on it.

Thanks for all the replies. I'm going to just get new pads and keep the original rotors.

golgo13

iTrader: (134)

Get the rotors turned though.

EVOBrakes

iTrader: (67)

There is not really a good answer here.

Rotors are worn when they are below minimum thickness or runout exceeds the spec. And this can only be measured w/ a micrometer/runout gauge.

There are other potential rotor issues. Excessive heat can create pad smear, hot spots, etc - these are all usually created by single overheating events where the pad material is carried significantly past it's operating range and the result is commonly referred to as warped rotors but is really judder - or uneven friction resulting from th epad 'smearing' on the rotors in places and screwing up the friction. This part gets a bit complicated.


It can be fixed - sanding/rebedding pads/light turn if need be.

The giant rotor on an evoX is not going to wear fast unless you work it hard and/or go to aggressive pads. We don't sell many - and I am not surprised.

We'll be there when you do need them though.

Iowa999

iTrader: (1)

^ this. A street-driven car just needs a few minutes with a ScotchBrite pad when changing brake pads.

> resolution of not responding to any threads about "breaks" broken in five minutes ... check

EVOBrakes

iTrader: (67)

breaks!

safat_evo

no need to change rotor

mp72

lol. I figured that out brake pads after making this thread. At least it shows my question is legitimate. :/

Update.... I checked my rotors and they are not smooth. I'm going to take it to a brake shop to see if they can shave them. If not I'll put new rotors on.

dek0026

Dude, put new pads on and be done with it. 18k street miles on street pads didn't do crap to your rotors. If you want to **** about it then scrub them with Brillo pad or lightly sand them as above. You'll likely be fine with just throwing new pads in and gettin on with your life.

Also EvoBrakes (KNS Brakes) is a great vendor. They have been very helpful when I called them in the past.

Iowa999

iTrader: (1)

Maybe you use the word "Brillo" in the same way that people say "Frito" for any corn-chip or "Coke" for any cola, but do not use actual Brillo pads to clean rotors. Brillo pads have soap in them. Use a green ScotchBrite pad (only).