Judging from what changes Rippler made in his mod, the values you want to change are LockOnRange and WeaponRange. He also made changes to LifeTime, FromVehicleLifeTime, LaunchSpeed, and TimeToReachTarget which influences how fast the missile travels and how long it flies before it detonates itself.
Posts made by SightsIn
RE: Editing Homing Launcher, And vehicle Missile, Lock on Range
RE: [SCRIPT][REL]Manual Transmission & Steering Wheel Support
I tried out the new nightly build (1.0.807). The description says that it uses engine load to decide when to up-shift. Is this supposed to make it shift earlier if I don't mash the accelerator, or am I thinking of something entirely different.
Reason I ask is because if it is supposed to work like that, then I didn't get it to work correctly.