i have DBA 4000 6X6 slotted rotors and they are kinda warpped. has anyone been able to resurface slotted rotors? these were kinda expensive (125 each) and i dont want to invest in new rotors yet. if i have to, id look into powerslots or racingbrakes

any input is welcome

thank you

 

Start calling local shops, some can. Have you put new pads on and tried bedding them in to see if its just a glazing on the rotor causing your issue?

 

i havent tried that yet. should i try that with cheap pads or get something good like ebc or hawk?

also, the front rotors almost look chrome..theyre pretty reflective compared to what ive seen. is that glazing?

sorry..im a brake noob

 

Get a good pad like the green stuff, they have a good break in coating on them that will help.

 

I have yet to see a shop that can turn (resurface) slotted rotors. The only thing the shops can do is to grind or deglaze slotted rotors.

My last set of Rotora slotted front were warped, and I had to buy a new set.

 

This seems to be a popular misconception. I've done plenty of them with the standard old fashioned ammco lathe that a lot of shops use. I've used round bits as well as the traditional triangular ones. I personally think some shops don't want to try them out of fear that they might be hard on the lathe or bits. With an expensive set of roters like dba, I'd call around till you find someone who's comfortable doing them. I'd trust a machine shop that caters to garages more than diy'ers, especially ones that do engine machining as well. You could also try garages that do performance work.

 

hmm..theres a couple of machine shops around. ill have to stop by and see what they can do.

thanks for the input guys

 

Well, this may be a lost art. With most brake shops nowadays hiring younger lads who have absolutely no idea what an old fashioned ammco lathe even look like, this would be hard to come by.

It also helps if you can give us the names of places that will turn slotted rotors.

 

I wish I could be specific, but I doubt that any parts chain has a "policy" on turning drilled and/or slotted rotors. You're just as likely to get a skilled old timer who won't even try it , as an eager kid who'll gladly try it and screw it up. Basically anyone who can properly turn an ordinary rotor can do it.
I agree it's a dying art, with the cost of most new rotors being so cheap.
I just think with expensive , good rotors it's worth a few phone calls.

 

i do it all day at o'reilly including on my own slotted rotors (dba) all it does it skip over the slot. if you can turn a standard rotor, you can turn a slotted rotor. no biggie

 

too bad you werent in cali. both shops in selma wont do it. old guys are too scared. im gunna try the fresno area tomorrow and if nobody in fresno will do it, ill ask my buddys dad if he has time to do it as a side job

 

Hi everyone,

Sorry for late response but we were only just told about this post and suggested we drop in.

crazyasiantl, it maybe too late already but the answer to your original question is yes, you can machine our slotted rotors. Can I suggest that you take a look at http://www.racedotcom.com/showthread.php?t=27458 for some background on the process and do's and don'ts.

Anyway, hope that helps and let us know if there is anything else we can do to help.

Many thanks
DBA Steve
dbasteve@dba.com.au

 

^
Nice of you to chime in.

But, I will add that you definitely can resurface both slotted and drilled rotors.

 

so Bryan what happend...

Theres a guy on the forum that works at Orielly u can ask him to he works at the one in Modeso though..

I think you should just come to EG and buy the Type-S they have for 26 haha

 

It has been agreed that with the right skilled mechanics and the right equipment, slotted and/or drilled rotors can be machined.

But WHERE can it be done ? This is the most important information that is missing.

 

Sorry, I can't help you there.

I don't know places in B.C.?

 

hi steve, thanks for the reply. i actually forgot about a shop here in town so i went by a few weeks ago and they took care of it. 12 bucks each and they feel great.

any chance on a rear disc kit?

Bryan

 

I don't think it is worthwhile in Canada to do what DBASteve referred to in racedotcom, which suggested doing five passes of fine cut instead of one pass of regular cut.

Labour charge is expensive in Canada, and it may be better to buy new slotted/drilled rotors than to pay the hefty price to machine the old set. Furthermore, machining the old rotors reduces the rotor thickness, and the resulting rotors may warp even easier.

 

Hi everyone,

Crazyasiantl, great news on that, glad it worked out. Just make sure you keep an eye out on the minimum thickness issue. I’d love to help on a rear disc kit but am afraid what would happen to me if I said yes every time this came up.

Edward'TLS, I take your point and it all has to be factored in to the mix but multiple passes are not too time consuming, depending on the equipment of course. It would depend on each case but the process of machining rotors is a long standing one that delivers value. However, you raise a good point re minimum thickness but staying within the recommendations should keep things in check.

Hope that helps.

Regards

DBA Steve
dbasteve@dba.com.au