hi
I am getting new disks for my 2005 wrx and looking to drill and slot them would anyone know any measurements for size of holes which are drilled and how far apart
Thanks

 

Why don't you just fit pre-grooved disks?
Don't drill them they have a tendency to crack.

 

This! Save you a lot of hassle.

 

All you really need are grooved discs, as said, drilling causes stress fractures in the metal and can cause catastrophic failure to the brake disc due to them expanding and contracting during use, the last thing you want is a big chunk of metal hiting your car or a brake line due to this

 

A big can of worms to avoid.....

 

Hey there bud, if you are short on money and in need of discs just get standard subaru ones, or if your current discs are allright and you really want the groved and drilled and dimpled discs then just save some cash and get them already goroved and dimpled, i really wouldnt want to attempt to drill my discs ... safety is your number one priority.

 

Hi. Did my own many years ago but I had access to a proper indexing machine which ,once set up, gives the correct spacing and pattern required. But,to be honest, with the cost of them already done, I really wouldn't go through the hassle of Diy

 

Hi thanks for replys I'm not going to pull dewalt drill out and just pull some holes in if anyone though that haha .. I just don't have access to any drawings for which Subaru would have given direction to tolerances and sizes I'm an engineer and we already do brake disks for cars and for stock cars thanks

 

It may have been helpful if you had mentioned that from the start, haha..... :I