re-drilling discs

[SteveBAM]

as you might know, I am in the process of upgrading my front brakes. http://www.audi-sport.net/vb/showthread.php?92068-Brembo-Calipers&p=958553
with my new Evo X calipers that i bought from ebay in, I have been looking to find a set of rotors so I can send them off to have adapters made for the calipers to sit in place.

Im looking for a set of disc's between 340-350mm and the only thing I can find which wont cost me an arm and a leg is drilled 345mm rotors from the MKV R32 golf and 8P S3 which are for 5x112 hubs.

now my question is, would there be any issues if I re-drilled the rotors to 5x100 to fit to 5x100 hubs?

thanks
Steve

 

[<tuffty/>]

Considering most aftermarket replica wheels and spacers are typically multi drilled to fit both 5x100 and 5x112 then in theory it can be done.... I wouldn't get it done by anything other than a machine shop though....

Sadly there isn't an awful lot of stuff that will be cheap when you start going to that size of discs...

Bill's 2-piece stuff isn't that badly price comparatively and the 330mm setup I have is more than adequate to pull an S3 to a halt... pretty sure they work out cheaper long term than R32 brakes too..

<tuffty/>

 

[fingermouse]

There may be a strength difference as I guess the holes are normally cast and then cleaned to size, drilling should be ok but may weaken the area

 

[badger5]

check pad swept area on the disk/caliper/pad combination you desire.

 

[s3ollie]

mk1 r32 discs are 5x100 334x32

 

[SteveBAM]

Considering most aftermarket replica wheels and spacers are typically multi drilled to fit both 5x100 and 5x112 then in theory it can be done.... I wouldn't get it done by anything other than a machine shop though....

Sadly there isn't an awful lot of stuff that will be cheap when you start going to that size of discs...

Bill's 2-piece stuff isn't that badly price comparatively and the 330mm setup I have is more than adequate to pull an S3 to a halt... pretty sure they work out cheaper long term than R32 brakes too..

<tuffty/>

yes if i go down the road of having to machine them i will take them to a good machine shop i know to get them done..
i was considering Bills 2-piece I'm sure they are of good quality and are more than enough to put an S3 to a stop but i am mostly going for the looks and that's why im going for 340+ so i can cover as much of the inside of my rims as possible. I haven't crossed them out yet, ill see how it goes...:icon_thumright:

 

[SteveBAM]

check pad swept area on the disk/caliper/pad combination you desire.

could you please explain what you mean by that Bill?
Thanks

 

[SteveBAM]

mk1 r32 discs are 5x100 334x32

yes i have those ones in mind to, it would be nice if i could find them in a 2 piece version...

 

[dnLcal]

I would recommend against it as the disc will have to be balanced after. So a two peice disc and bell kit would be better.

The holes are drilled into discs not cast.

Callum

 

[badger5]

could you please explain what you mean by that Bill?
Thanks

pad swept area.. = area swept by pad.. its height.. which touches the disk face