Hi all
Finally getting around to upgrading the discs and would like some advice on potentially going for the big brake kit.
My initial thoughts were to replace front and rear with just OEM sizes (370mm and 310mm). I'm sure this would still be marked difference over the stock discs, however that wouldn't solve the 'nose dive' and unstable rear sensation under braking. I appreciate weight transfer will always be a factor, but see below for why this is so exaggerated on this car and why I think it can be improved.
Would you advise going bigger on both front and rear.. or just upgrade the rears to 350mm?
I don't want to negatively affect the brake bias/ABS system but I find it bizarre there is such a size difference.. almost 20% difference in rotor size front to rear and this has to be contributing to the sensation described above.. surely the only reason Audi would do this is to save money?
For comparison sakes, other performance Haldex models have the following ratio so I don't believe it would damage the drivetrain, and would bring it more in line with what we see on other cars:
Use case: its a 2016 RS3 and gets fast road use with the occasionally track day. Also plan to go to the Nurburgring next year (COVID permitting). Will be used with Ferodo DS Performance pads.
Thanks
Finally getting around to upgrading the discs and would like some advice on potentially going for the big brake kit.
My initial thoughts were to replace front and rear with just OEM sizes (370mm and 310mm). I'm sure this would still be marked difference over the stock discs, however that wouldn't solve the 'nose dive' and unstable rear sensation under braking. I appreciate weight transfer will always be a factor, but see below for why this is so exaggerated on this car and why I think it can be improved.
Would you advise going bigger on both front and rear.. or just upgrade the rears to 350mm?
I don't want to negatively affect the brake bias/ABS system but I find it bizarre there is such a size difference.. almost 20% difference in rotor size front to rear and this has to be contributing to the sensation described above.. surely the only reason Audi would do this is to save money?
For comparison sakes, other performance Haldex models have the following ratio so I don't believe it would damage the drivetrain, and would bring it more in line with what we see on other cars:
- Merceds A45 (350mm/330mm) - 6%
- Audi S3 (340mm/310mm) - 9.6%
- Stock RS3 (370mm/310mm) - 19%
- RS3 with upgraded front & rear (380mm/350mm) - 8.5%
- RS3 with upgraded rear (370mm/350mm) - 5.7%
Use case: its a 2016 RS3 and gets fast road use with the occasionally track day. Also plan to go to the Nurburgring next year (COVID permitting). Will be used with Ferodo DS Performance pads.
Thanks