from what i know you should avoid having hot rotors when you park your car and walk away. hot rotors in contact with the pads in one spot causes the rotors to get uneven. kinda makes sense to me but duno if its true

 

My dad told me the same thing but I realized that what about when it rains? You have to stop driving right away and get under a roof so the rotors won't get wet? I don't know. I do agree with webguy.

 

too late for me. I think those rotors are too weak anyway. I had the dealer replace them and they were warped again.

 

You should ALWAYS throw ice water on the rotors after a hard drive............

 

Not to hijack the thread but, could you also crack exhaust components if say your driving hard and you go through a large puddle causing sudden cooling of the exhaust system?

 

Honestly I'd say more of a concern would be cleaning your wheels with any form of wheel cleaner (solvent) when the WHEELS themselves are hot.

 

yeah... ive known this for as long as i can remember

 

yeah , thats not good

 

I'm with webguy, this is a stupid myth.

 

Christ, this is not true at all.

 

I go to the car wash (very frequently, atleast 2 times a week). I get the rotors wet, and all the steam comes and all the good stuff. I have done this for a while and nothing has happened to them. I don't think it will be a big problem. All the water does is just cool the rotors off.

 

yep... found that out on my 3000gt, the break dust permanantly stained the wheels, ouch. as far as rotor warping is really that hard to wait like 10 min or so after driving to wipe down the wheels

 

I'm not going to say whether I think this is a myth or not...because I really don't know the answer.....BUT.......I do know that Heating steel/iron and then rapidly cooling it with water is actually a strengthening technique. (as well as to cool it to a temp closer to where you can handle it with a bare hand)

There is a reason welding shops or whatever generally keep a nice tank of water around to dip recently welded or cut steel into.


/ancker

 

You won't be able to avoid it during the rain and car wash. Never had an issue with my toyotas and hondas so if the EVO does this it's a cheap or brembo thing.

 

It shouldn't be a problem unless you were doing very aggressive braking and have the brakes very hot. The issue is uneven cooling. If just one part of the rotor gets sprayed with water and the rest doesn't it could result in warping or cracking, but as I said previously it would take a very hot rotor. For normal daily driving you can wait 10-15 minutes for peace of mind, but it's probably not necessary. Just don't spray your rotors down right after a hot-lapping session.

-Paul