Fitting UK spec brakes

[SIMON LC]

Thinkin of fitting UK spec front and rear on my J spec.Just wondered if there is much of a difference in performance and is it basically a straight forward un bolt of old and bolt on of the UK set up?Are the UK spec discs bigger diameter? Do you have to change the master cylinder as well or dont most people bother?

[colsoop]

Quite a big difference in performance from higher speeds

 

The disks are bigger and the calipers are 4 pot front and 2 pot rear. Before buying the parts make sure your current wheels have the clearance required to fit the larger calipers !

 

See here for a guide : http://planetsoarer.com/suprabrakesII/SupraBrakeUpgrade.htm

[Angarak]

I believe there is a difference between a UK spec and J-Spec master cylinder.

 

Maybe someone with better knowledge will correct me, but Im under the impression that if a JSpec came with the brake upgrade (aka UK brakes) from the factory it should have a UK spec master cylinder. If it came with jspec brakes it will have a jspec master cylinder.

 

If you upgrade to UK spec brakes, I believe its a good idea to match it with a uk spec master cylinder.

 

EDIT

See JohnA's post regarding the MC here: http://www.mkivsupra.net/vbb/showpost.php?p=950802&postcount=12

[Nic]

Thinkin of fitting UK spec front and rear on my J spec.Just wondered if there is much of a difference in performance and is it basically a straight forward un bolt of old and bolt on of the UK set up?Are the UK spec discs bigger diameter? Do you have to change the master cylinder as well or dont most people bother?

 

Big improvement in stopping power between the 2.

 

Another install guide here: http://www.internetwork.org.uk/brakes/brakes.htm

 

Smaller Spec Discs

Front - 296mm

Rear - 307mm

 

Larger Spec Disc Size

Front - 323mm

Rear - 324mm

 

You don't need to change the master cylinder.

 

http://mkivsupra.net/vbb/showthread.php?t=98436