First the data

Model | disk diameter | contact width | caliper piston | tire diameter |

GT/GTS | 220mm | 25mm | 2 X 25mm floating | 473mm |

LX | 200mm | 30mm | 2 X 30mm | 414mm |

MP3 | 2 X 240mm | 30mm | 2 X 30mm | 473mm |

GTS Brembo | 220mm | 30mm | 2 X 30, 2 X 34 | 473mm |

I first looked at the ratio of the braking torque produced by the GT to the LX. By looking at the ratio things like the hydraulic pressure and friction coefficients drop out and it boils down to the relative size of the pistons and disks. I used the contact width to get the average radius of the disk.

Result: The brakes on the GT only produce 80% as much torque as the LX.

Next I looked at the stopping force applied to the ground, again working with the ratio of GT to LX. Due to the larger wheel on the GT (or smaller on the LX depending on the point of view) the force finally applied to the ground is only 70% that of the LX.

Last edited by oopsclunkthud on Sun Mar 07, 2010 9:40 am; edited 4 times in total