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View Full Version : how long odes your slotted rotors last?

yudalicious
07-19-2004, 07:37 AM
I'm not trying ot turn it into a blank vs. slotted/cross drileld argument,
just wondering how long slotted rotors last (I know this is a general question, but list how long they lasted and how they were used, what pads tehy were used w/ etc)... also I've always tohught it is not possible to turn slotted rotors but I just read you can.. anyone care to clear this up? Thanks
kandyflip445
07-19-2004, 12:02 PM
The reason you can't turn slotted rotors is because the bit used to machine the face of the rotor will "bite" the slots and either break or at least get damaged.

I think the rotor would last about the same, maybe a little less, but you will notice more pad wear.
S14DB
07-19-2004, 12:13 PM
The rotors last about the same. Pad life for me was cut at least in half.
yudalicious
07-19-2004, 12:37 PM
ok... makes me glad I went the OEM blanks...
on the topic of brakes: do you guys believe in turning your blank rotors everytime you change pads? I'v read alot of info on ppl recommending to not turn rotors unless you have vibrations, basically, if it's ok, leave it. Personally I get them resurfaced.
S14DB
07-19-2004, 06:02 PM
ok... makes me glad I went the OEM blanks...
on the topic of brakes: do you guys believe in turning your blank rotors everytime you change pads? I'v read alot of info on ppl recommending to not turn rotors unless you have vibrations, basically, if it's ok, leave it. Personally I get them resurfaced.
Get them checked for true and honed(to get the glaze off). Only turn them if they are out of true.
Kid Zelda
07-19-2004, 06:04 PM
Kandycan444 ....HAHAHA .. you can not turn slotted rotors ? HAHAHAH.. oh man .. HAHA, you're a joker :)
420sx
07-19-2004, 08:52 PM
you guys are fucking crazy...
kandyflip445
07-19-2004, 10:31 PM
When I was in brakes class I was told that if you tried to turn slotted rotors it COULD damage the bit you're using on the machine.



S14DB: What do you mean about being honed? I've always resurfaced rotors with the brake lathe and checked if they weren't true on them either.
YellwMonky
07-19-2004, 10:45 PM
When I was in brakes class I was told that if you tried to turn slotted rotors it COULD damage the bit you're using on the machine.


brakes class...? what school did you go to?
S14DB
07-19-2004, 11:38 PM
When I was in brakes class I was told that if you tried to turn slotted rotors it COULD damage the bit you're using on the machine.



S14DB: What do you mean about being honed? I've always resurfaced rotors with the brake lathe and checked if they weren't true on them either.
After your finished with the lathe you have to hone the ridges out of the disc.
thx247
07-20-2004, 09:03 AM
Depends on what type of pad you are switching to. If you are using compatible compounds then no you don't need to lathe the rotor. Ask the pad manufacturer about the compatibility because they have the most experince with those pads, but in most cases if you switch a ferro-carbon pad to a ferro-carbon pad for example- everything will be ok.
kandyflip445
07-20-2004, 11:42 AM
I went to my local college. It's sponsored by FORD.(Yaaaay but they do know about fixing cars since theirs always break)

I still don't know what you mean about honing them? Maybe something we didn't get to cover? We used an off-car brake lathe and an on-car brake lathe. Neither required further work other than cleaning with brake cleaner and replacing the rotor/brake assembly.