BAWC Forums

03 cobra

Leaning towards trying to use those gt350 boat anchors I got sitting here. A bit concerned about brake bias and pedal travel.

Master bore 27mm
Stock front calipers 40mm 2 piston sliding
Stock rear calipers 38mm 1 piston sliding

Front rotors 13"
Rear rotors 11.65"

I would like to use a 14.5" or so front rotor.


I do have an option for bolt on 43mm piston rear calipers.

So everything I've read says you basically take the piston area multiplied by the rotor diameter, and then the ratio F/R.

So doing those calculations, the stock F/R bias is 2.47.

Going to the GT350 6 pot with a 14.5" rotor, and keeping stock rear you get 3.37.

Going to the GT350 6 pot with the stock rotor, and keeping stock rear you get 3.01.

Going to the GT350 6 pot with a 14.5" rotor, and going to the 43mm piston in the rear gets you 2.63. This is what I would recommend. On the Stealth I went from 2.49 stock to 2.60 with the setup I have, and it is just fine.