Cross drilling stock rotors?
#1
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Cross drilling stock rotors?
I've been wanting a long time to get some aftermarket rotors that were cross drilled, slotted, or both. Preferably cross drilled because IMO they look better. Before you go off and tell me cross drilled or slotted rotors are inferior to stock rotors, they will crack, etc., etc., when you bring your car to the track because the rapid heating and cooling will cause stress cracks around the drilled holes, I already know that. However, I don't plan on bringing this car to the track. I have had crossed drilled/slotted rotors on my previous car for years and never had any problems with them with street driving. I know they are only for looks only and does nothing for performance, and this is exactly what I am looking for, to make my rotors look more aggessive.
The dealership replaced my front rotors and pads couple months ago because they were squeeking when I only went in to replace my windshield moldings. I was thinking instead of buying cross drilled rotors, have my stock rotors drilled to have the same look. R1 Concepts who sells brake parts and rotors said they can cross drill my stock rotors for $20 each. Are the stock rotors robust enough to take cross drilling with street driving? Or are those rotors that get cross drilled made of stronger metal to handle cross drilling.
The dealership replaced my front rotors and pads couple months ago because they were squeeking when I only went in to replace my windshield moldings. I was thinking instead of buying cross drilled rotors, have my stock rotors drilled to have the same look. R1 Concepts who sells brake parts and rotors said they can cross drill my stock rotors for $20 each. Are the stock rotors robust enough to take cross drilling with street driving? Or are those rotors that get cross drilled made of stronger metal to handle cross drilling.
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I ended up going with PROSTOP on ebay. They are out of Arcadia, Calif. I ended doing the work twice. Because I assumed the ROTORS were Zinc Plated. They were not. and rust started to show a month later. However, PROSTOP stepped up to the plate and sent me a new set ZINC for $20.00 extra. I payed the shipping for the return. So.....the moral of the story. Don't assume and make sure they are ZINC DIPPED.
I love the look.
I love the look.
#3
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I'm interested in hearing the answers people have about this. I think it would be possible to drill the stock rotors since I heard R1 Concepts just drills blank Centric rotors. However, you are loosing weight off the rotors and material. Not sure if it'll work but for $20 each, I'll get my stock ones drilled if it woks.
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Yea, R1 Concepts is local to me, I called them up and they said yea they can drill stock rotors. They even ask if I want them plated but I said no because our stock rotors already have that flat black coating to prevent rust. I can buy new rotors that are cross drilled but I would hate to have my stock rotors just sit there not being used.
#5
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Just don't try to drill used rotors. It may not be pretty at all.
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I trust what you say because you seem knowledgeable in anything car related. Can you explain in further detail why this might be a bad idea? Not pretty meaning it's gonna turn out ugly looking or not pretty in creating a disaster for my brakes. Thanks.
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#9
If you must do it only get slotted, the drilled rotors will start to heat crack at the holes very quickly and the you've just wasted your money. You really don't even need slotted unless you are really heating things up for no reason. That's a spendy way to go for a look that you can only see if the car is stopped.
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^^ Never had cross drilled holes crack on my old car or on any of my friends' cars with street driving. I don't really hear about cracked rotors with street driving but track yes. I believe Lobuxracer even posted a picture of his stock IS-F rotors having cracks after a track day, and those come cross drilled.
#11
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He is right, VERY BAD! There was once a youtube video of an Integra owner who did that and the rotor snapped on the highway.....did not sound good nor looked good at all
It will be less expensive in te long run to buy a set, even the cheaper ones are less riskier then drilling yourself...just saying
It will be less expensive in te long run to buy a set, even the cheaper ones are less riskier then drilling yourself...just saying
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He is right, VERY BAD! There was once a youtube video of an Integra owner who did that and the rotor snapped on the highway.....did not sound good nor looked good at all
It will be less expensive in te long run to buy a set, even the cheaper ones are less riskier then drilling yourself...just saying
It will be less expensive in te long run to buy a set, even the cheaper ones are less riskier then drilling yourself...just saying
#13
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Thanks, guess drilling is a no go and will just buy new rotors later on that comes drilled when the time comes. I'm no metallurgy expert but I assume the constant heating/cooling when braking (even with street driving) changes the metal structure of the rotor in a uniform manner. Perhaps introducing holes in a used rotor where the structure has already been altered makes the rotor more prone to cracking. I had a sense it was a bad idea, but I just had to ask anyways. Topic didn't really come up in searching. Thanks everybody.
#14
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Thanks, guess drilling is a no go and will just buy new rotors later on that comes drilled when the time comes. I'm no metallurgy expert but I assume the constant heating/cooling when braking (even with street driving) changes the metal structure of the rotor in a uniform manner. Perhaps introducing holes in a used rotor where the structure has already been altered makes the rotor more prone to cracking. I had a sense it was a bad idea, but I just had to ask anyways. Topic didn't really come up in searching. Thanks everybody.
Once you drill, you introduce a whole new set of stresses to the metal, and how those stresses resolve may end up cracking the rotor catastrophically.
A new rotor has none of these issues, so drilling a new one isn't a big deal at all. The cast iron is pretty soft and the drills don't need to be super expensive to do a good job. I'm still no fan of drilled rotors, but there are ways to do it to minimize the risks if you've decided you have to have it.
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^^ Makes more sense the way you explained it. Thanks for the info.
Not being a fan of drilled rotors + IS-F stock drilled rotors = Not a fan of IS-F stock drilled rotors
Not being a fan of drilled rotors + IS-F stock drilled rotors = Not a fan of IS-F stock drilled rotors