R32 GTR brakes

[Roy]

Can anybody tell me the exact differences between the 4 spot calipers and discs on the R32 GTS-T and GTR (non V-Spec).

What are the respective disc rotor diameters and width.

I understand that they look similar, but someone once told me that the GTS-T runs a 28 mm thick disc, to the GTR's 32mm thick discs.

I am wanting to upgrade to 32mm thick discs without the expense of AP, Brembo style calipers. Hopefully GTR calipers are a cheaper option.

[SteveL]

R32 GTSt disc diam is 280mm, new thickness is 30mm

R32 GTR disc diam is 296mm, new thickness is 32mm

I looked at some GTR cals today and they appeared identical to the GTSt type to me, BUT that was only a visual comparison, so no way I'm sure on this. Whether GTR discs and cals will bolt up easily to a GTSt I can't say, but would be surprised if more mods were'nt required.

[fatz]

front calipers ar fatter

pete

[Roy]

Any ideas whether they would mount ok on 330 x 32 mm discs.

Understand brackets etc will most likely be required but physically will the GTR calipers swallow a 32mm thk disc

[Guest MFX_R33]

A mate of mine is building a Ford GT40 replica which he has bought R33 GTSt calipers for. He has also gone and bought some huge Mercedes discs which are the same thickness but larger diameter than R33 GTR discs (at around half the price!). He has had to file out the inside "corners" of the caliper to accomadate the diameter of the new disc, but i am not sure if he has compromised the integrity of the claiper doing so. The mounts will need to be fabricated to hold the caliper but if it works, it is and awesome upgrade and will dramatically increase breaking, at a low cost.

Something to think about.

Jeff.