I have searched for ways to increase speed. I have tried the speed mod, or changing the max force. None of those really give you a choice. If you change any of those too much, it causes problems with asteroids, docking, etc. I have found a way to have normal cruise speed, normal thruster speed, and be able to fly at about 12,000. I created a mine with the following stats:

[Explosion
nickname = ZPE_Mine_explosion
effect = li_mine01_blast25
lifetime = 0.000000, 0.000000
process = disappear
strength = 50000000
radius = 100
hull_damage = 0
energy_damage = 0
impulse = 2000000

[Mine
nickname = ZPE_Mine_ammo
explosion_arch = ZPE_Mine_explosion
requires_ammo = false
hit_pts = 2
one_shot_sound = fire_mine_regular
detonation_dist = 2000
lifetime = 5
force_gun_ori = true
DA_archetype = equipment\models\mines\br_plasma_mine.3db
material_library = equipment\models\br_equip.mat
mass = 0.100000
volume = 0.000000
owner_safe_time = 1
linear_drag = 0.400000
top_speed = 10
acceleration = 3
const_effect = li_mine01

[MineDropper
nickname = ZPE_Mine
ids_name = 265175
ids_info = 266175
DA_archetype = equipment\models\weapons\li_cm_dropper01.cmp
material_library = equipment\models\li_equip.mat
HP_child = HPConnect
hit_pts = 400
explosion_resistance = 1.000000
debris_type = debris_normal
parent_impulse = 20
child_impulse = 80
volume = 1
mass = 10
damage_per_fire = 0
power_usage = 1
refire_delay = 1
muzzle_velocity = 20
toughness = 3.300000
projectile_archetype = ZPE_Mine_ammo
separation_explosion = sever_debris
lootable = true
LODranges = 0, 20, 60, 100

To make it work, first slow down to 0, use the free flight cruise drop down icon to aim with. Kill the engine, drop the mine, and wait. The ship will tip up a little and the mine will explode sending you at, what looks like, warp speed. The aiming is a little cockeyed, but who cares. I got fast speed with normal cruise for asteroid fields. You also have to change the constants.ini file with the ANOM_LIMITS_MAX_VELOCITY set at 50000 or to whatever you like. Remember though to avoid collisions and have very good shields or it will be a
short trip.

I call this mine my "Light Speed Jump Pod". I hope all of you like it