# rotor re-drilling **URL:** \ **Category:** SON240sx Automotive\ **Created:** [July 25, 2007, 10:38am UTC](https://forums.speedlife.net/t/rotor-re-drilling/107954 "2007-07-25T10:38:34Z")\ **Posts on this page:** 10\ **Page:** 1
**Author:** ![matty](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/matty/32/5043_2.png) [@matty](https://forums.speedlife.net/u/matty)\ **Post date:** [July 25, 2007, 10:38am UTC](https://forums.speedlife.net/t/rotor-re-drilling/107954/1 "2007-07-25T10:38:34Z")
anyone know where i can get rotors re-drilled? preferably in the niagara area ---
**Author:** ![maxgohan](https://avatars.discourse-cdn.com/v4/letter/m/22d042/32.png) [@maxgohan](https://forums.speedlife.net/u/maxgohan)\ **Post date:** [July 25, 2007, 12:42pm UTC](https://forums.speedlife.net/t/rotor-re-drilling/107954/2 "2007-07-25T12:42:01Z")
redrilled for the hubs? (4lug or 5 lug) or cross drilled on the actual break part of the rotor? ---
**Author:** ![nwmrkt](https://avatars.discourse-cdn.com/v4/letter/n/aca169/32.png) [@nwmrkt](https://forums.speedlife.net/u/nwmrkt)\ **Post date:** [July 25, 2007, 12:46pm UTC](https://forums.speedlife.net/t/rotor-re-drilling/107954/3 "2007-07-25T12:46:14Z")
he most likely mean for the hubs. ---
**Author:** ![roast](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/roast/32/5498_2.png) [@roast](https://forums.speedlife.net/u/roast)\ **Post date:** [July 25, 2007, 7:48pm UTC](https://forums.speedlife.net/t/rotor-re-drilling/107954/4 "2007-07-25T19:48:04Z")
matty, get a drill press and a sharp bit. ---
**Author:** ![matty](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/matty/32/5043_2.png) [@matty](https://forums.speedlife.net/u/matty)\ **Post date:** [July 25, 2007, 8:06pm UTC](https://forums.speedlife.net/t/rotor-re-drilling/107954/5 "2007-07-25T20:06:07Z")
is it commong for people to do this themselves? im only hesitant because its breaks ---
**Author:** ![roast](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/roast/32/5498_2.png) [@roast](https://forums.speedlife.net/u/roast)\ **Post date:** [July 26, 2007, 5:15am UTC](https://forums.speedlife.net/t/rotor-re-drilling/107954/6 "2007-07-26T05:15:52Z")
> [@my 1/4 mile v card!](https://forums.speedlife.net/t/my-1-4-mile-v-card/13427/4): > > is it commong for people to do this themselves? > > im only hesitant because its breaks Brakes… =D and yes I’ve done it myself. ---
**Author:** ![Jedi\_Car\_Fan](https://avatars.discourse-cdn.com/v4/letter/j/b9e5f3/32.png) [@Jedi\_Car\_Fan](https://forums.speedlife.net/u/Jedi_Car_Fan)\ **Post date:** [July 26, 2007, 5:20am UTC](https://forums.speedlife.net/t/rotor-re-drilling/107954/7 "2007-07-26T05:20:39Z")
its pretty straight forward… if you’re re-drilling 5 bolt to 4 bolt… simply start by using a common hole between the two, shovel in a dowel pin the same DIA and then clamp the rotors together perfectly… then each time you finish drilling a hole, put in another dowel pin which will keep it from turning 😉 start with a small pilot hole and slowly work your way up… ---
**Author:** ![matty](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/matty/32/5043_2.png) [@matty](https://forums.speedlife.net/u/matty)\ **Post date:** [July 26, 2007, 9:05am UTC](https://forums.speedlife.net/t/rotor-re-drilling/107954/8 "2007-07-26T09:05:36Z")
brakes haha sorry i knew the second i saw that i typed breaks, (iono) someone would correct me so i put the 5 bolt rotor face to face with one of my 4 bolt rotors (hub to hub) lined up a common hole and then marked the remaining three on the 5 bolt rotor the other three come very close to the existing 5 bolt holes, but there will be about 4-5 mm of metal bewteen the holes is this safe enough to run? ---
**Author:** ![Jedi\_Car\_Fan](https://avatars.discourse-cdn.com/v4/letter/j/b9e5f3/32.png) [@Jedi\_Car\_Fan](https://forums.speedlife.net/u/Jedi_Car_Fan)\ **Post date:** [July 26, 2007, 9:41am UTC](https://forums.speedlife.net/t/rotor-re-drilling/107954/9 "2007-07-26T09:41:14Z")
> [@Help me think of a custom plate for the Cobra](https://forums.speedlife.net/t/help-me-think-of-a-custom-plate-for-the-cobra/13312/89): > > the other three come very close to the existing 5 bolt holes, but there will be about 4-5 mm of metal bewteen the holes > > is this safe enough to run? Some will argue that its not safe Im sure but MANY people do it without any problems. I know of (2) people in KW along who are running on 5 bolt rotors re-drilled to 4 bolt, one of which is Darian (S13GG) and hes crazy/beats on his shit hard so if he cant break them or run into a problem, then I highly doubt you will either. ---
**Author:** ![roast](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/roast/32/5498_2.png) [@roast](https://forums.speedlife.net/u/roast)\ **Post date:** [July 26, 2007, 2:27pm UTC](https://forums.speedlife.net/t/rotor-re-drilling/107954/10 "2007-07-26T14:27:22Z")
I ran the above mentioned setup @ dunnville without a problem. I even had a stripped wheel stud… 0\_0 I bolted the rotors face to face, then center marked the 3 holes, unbolted the rotors then drilled with the proper size bit. The drill press I used was small and wouldn’t fit both rotors. When drilling, lube with oil! I’d drill a mm or 2 then put more oil inside the hole… Worked out well. Obviously this was taught to me while drilling as I didn’t know this before. The other thing I picked up was to use a slow speed on metal.