Help with 930 Brake Upgrade for Narrowbody.

[ktr6]

Just wondering if I could get some help with my 930 brake conversion on my 87 911 narrowbody.

1) Does anyone know the exact specs for the counterboring required to be able to mount the rear caliper? I have a very capable machine shop in town to perform the machining.

2) I have front 930 hubs and rotors which push the offset out 19mm, can they be used instead of having to purchase the modified two piece rotors?

Thanks all, any help along with other advice would be greatly appreciated.

Keith

[Bill Verburg]

I have front 930 hubs and rotors which push the offset out 19mm, can they be used instead of having to purchase the modified two piece rotors?

No, you can't use those unless you have 930 fenders.

You need the flat hats and accompanying rotors

[addictionMS]

I am using the Boxermotorsports adapters and rotors with 930 calipers. I spaced the calipers back by 1/4 inch and I am running 3/8 spacers. I think this set up would fit under a narrow body

Jim