BLACK V5

When you fit grooved discs does it matter which way the grooves face.(grooves curving to the front of the car or back)?

rhys172

If it's any help, the grooves on the prodrive discs curve to the front. You can just about see on this pic:

http://i37.photobucket.com/albums/e9...DSC_7622_s.jpg

My discs do have arrows to show direction of rotation, so maybe have a look at your discs to see if they have the same.

s70rjw

iTrader: (2)

They normally face front on all the ones I've fitted....Tarox 12 and 40 grooves

BLACK V5

Cheers lads. Already put them on. So i did quess right. Now i dont have to change them.

Hoppy

The grooves are to clean the pads and prevent glazing. The direction doesn't matter much except that one way will direct dust towards the hub, and the other way will send it clear of the disc.

What is much more important is the direction of the turbo vent grooves if fitted (eg AP) which suck cooling air through the inside of the disc. AP has recently changed from straight to curved grooves so that cooling and cleaning are optimised, without compromising the internal strength of the disc itself.

If you have turbo cooling vanes (not all discs do) that's the important bit to get right. Should be clearly marked.

Richard.