Big red's - rotors

[Stein]

What rotor's are used with the big red kit (front & rear) on a -80 sc?
Are there spesial made rotors for these kit's or can I use 993tt front\rear rotors?? (with no park-brake).
If the offset is wrong: Does there exist adapters that allows calipers with porsche rotors?

[Nine9six]

Do a search on Bill Verburg. He has posted volumes on the subject.

[Bill Verburg]

yes, 993tt rotors but.....

These are stock, 993f on left and 993tt on right.


The os is wrong unless the hub is modified. So on the 993tt the hat is unbolted and replaced w/ a flat zero o/s one.


Here is a 993tt rear on left and 993tt front w/ flat hat for 911 use on the right


The rear is fine for 911 use except the parking brake. In the pic above you can see where the pins that hold the 911 parking brake drum in place come through the rotor.

Here is a pic from the back

[Bill Verburg]

Installed front, 993 Big Red, aka 993tt, 993RS, 993C4S


Installed rear, 993tt, 993RS, 993C4s(they all look the same these are RS

[Stein]

here are mine front:
look like the one one the first picture. What's a 993f?

[Bill Verburg]

both are 993 front rotors
normal on left, tt on right, there is also a 1 piece rotor which is the same size as the 2 piece tt front rotor, it appears from your pic that you may have that one piece tt size on your car.
the n/a front is 304x32mm the tt 2 piece is 322x32mm

[Stein]

So the 1 piece rotor and the 2 piece rotor will fitt???
I only found one kind on: http://www.pelicanparts.com/catalog/shopcart/911L/POR_911L_BRKpad_pg5.htm

[Bill Verburg]

993-351-045/046-10 are 993tt 2 piece front rotors 322x32
965-351-045/046 -00 are 965 1 piece rotors 322x32 bu the o/s is different thet are not interchangeable w/ the 993tt front rotors
993-351-043/044-01-M100 are n/a 993 front rotor 1 piece304x32

There is also a 1 piece 322x32 that we don't see in the states
993-351-045/046-00 that was used on 993RS front

the only ones that can be adapted to the front of a 911 w/o modifying the hub is the 2 piece 993tt front 993-351-045/046-10

[Stein]

So you're saying that my hubs are modified?

[Bill Verburg]

It would appear so, I better pic might be informative