Custom big brake kit questions

[wicketdreams]

I have been reading the posts about the custom 3000gt brake kit and have some questions and a description of what I want to do.

I would like to use OEM Mitsu branded 4 pot fronts and 2 pots rears on some 13" slotted rotors..I will be buying some 18x8 rims and some goodyear F1 gs d3 tires.

Some of the posts are not very clear on what the maximum rotor thickness is for those calipers and if its possible to use the 2 pot rears on our cars. Also does anyone have pics of the OEM calipers front and rear?

If it helps I already have adjustable coil overs on the car and will be upgrading to the RM swaybars, front and rear strut tower braces, and Tein Flex coil overs with the EDFC.

 

[wret]

Some of the posts are not very clear on what the maximum rotor thickness is for those calipers.

30mm front. You can't exceed the stock rotor thickness.

 

[wicketdreams]

ok Wret if i'm understanding the posts on your custom brakes, I can use the oem 12" 3000gt rotors on the rear with the 2 pot rear calipers, and for the fronts I can just buy rotors the proper size to work with the 3000gt 4 pot fronts and use the adapter plate to make them fit my 18's as long as the offset will clear the calipers?

 

[wret]

To start with, my setup is based on a full set of 1g (1991-1993) VR4/TT calipers. The rears are 1 piston and the rear rotor diameter is 11.19". The 2g VR4/TT rear calipers may also fit but I have not tested them. Fitting the slightly larger (11.6")rotors would be more work because they would not fit inside the 2g DSM dust shields.

The adapter brackets are needed to bolt the foreign front calipers to the DSM mounting ears, not to make them fit your wheels. Using a vR4/TT rotor will likely necessitate wheel spacers to clear the front calipers.

 

[wicketdreams]

wouldn't I have to remove the dust shields if I went something like a Baer big brake kit anyway? would I still have to use spacers if I just changed the offset on the wheels?

 

[wret]

wouldn't I have to remove the dust shields if I went something like a Baer big brake kit anyway?

Probably.

would I still have to use spacers if I just changed the offset on the wheels?

Probably. Unless You are using wheels designed to clear multi-piston floating calipers, you will still have clearance issues. It's not just the offset, it's the shape of the spokes and the way the wheel is made. As I understand it, it is common for lower-cost wheel makers to create multiple offsets simply by starting with a deeper hub and machining off different amounts of material; more for higher offsets, less for lower offsets.