garrittpwl
Active Member
Okay so here's where Im at so far. Long story short, bought a shit ton of parts in a bundle. managed to get 4 TBM f5 calipers in the batch (the giant ones).
Now I've got the fronts all setup using a 14 inch 2012/13 GT500 front rotors but the back is proving more difficult. I had planned on using 4 piston wilwoods in the back on a 12.5 inch rotor but the wilwood setup I have isn't complete and rotors are proving difficult to source.
I know I can make the front rotor work on the back using the extra two TBM F5's I have but then I will effectively have all 4 corners using a 14 inch rotor and giant caliper.
My thought is that if my factory NON ABS proportioning valve outputs 75% to the front and 25% to the rear that I can manage to make this setup work. Otherwise I will need to buy a proportioning valve to run the massive rotors and calipers on all 4 corners. This route believe it or not is appearing to be easier than making the smaller wilwoods work.
Any thoughts on this? (should be noted that I have a 100lb box of misc brackets that were custom made for this purpose so caliper mounting is not an issue)

Now I've got the fronts all setup using a 14 inch 2012/13 GT500 front rotors but the back is proving more difficult. I had planned on using 4 piston wilwoods in the back on a 12.5 inch rotor but the wilwood setup I have isn't complete and rotors are proving difficult to source.
I know I can make the front rotor work on the back using the extra two TBM F5's I have but then I will effectively have all 4 corners using a 14 inch rotor and giant caliper.
My thought is that if my factory NON ABS proportioning valve outputs 75% to the front and 25% to the rear that I can manage to make this setup work. Otherwise I will need to buy a proportioning valve to run the massive rotors and calipers on all 4 corners. This route believe it or not is appearing to be easier than making the smaller wilwoods work.
Any thoughts on this? (should be noted that I have a 100lb box of misc brackets that were custom made for this purpose so caliper mounting is not an issue)
