in the file shiparc.ini (i think thats its name) in the directory x:\...\freelancer\data\ships under the titan entry you can find hold_size = 70. Change that to what ever and you can haul that ammount but I thin that the tractor has a set ammount that it can grab so you might want to keep it under like 275.

Smile for today you live, tomarrow the clowns will eat you.

Being that your new I'll save you some time and headaches. Download the Freelancer SDK v1.3 and install it into your freelancer directory. By default the SDK aka Software Developement Kit will install into the Freelancer folder so just let it do it's thing, it has an install routine built in. After you install the Freelancer SDK v1.3 start Windows Explorer and go to Program Files\Microsoft Games\Freelancer\DATA\SHIPS and with wordpad open the file shiparch.ini
Because you already installed the Freelancer SDK v1.3 the files will be in text to make it easy to edit.

Look for this entry or search for 237021
this is the Titan..... Change the line hold_size = 70 to whatever size you want....
Example
hold_size = 10000
It can be any size, go crazy make it 1000000.... Just use numbers, no commas... or decimal points...
[Ship
ids_name = 237021
ids_info = 66542
ids_info1 = 66543
ids_info2 = 66608
ids_info3 = 66544
ship_class = 3
nickname = co_elite2
LODranges = 0, 75, 150, 2000
msg_id_prefix = gcs_refer_shiparch_hfighter
mission_property = can_use_berths
type = FIGHTER
DA_archetype = Ships\pirate\pi_vheavy_fighter\pi_vheavy_fighter.cmp
material_library = ships\kusari\ku_playerships.mat
material_library = fx\envmapbasic.mat
envmap_material = envmapbasic
cockpit = cockpits\kusari\pi_elite2.ini
fuse = intermed_damage_smallship01, 0.000000, 3150
fuse = intermed_damage_smallship02, 0.000000, 1575
fuse = intermed_damage_smallship03, 0.000000, 1050
max_bank_angle = 30
camera_offset = 11, 33
camera_angular_acceleration = 0.060000
camera_horizontal_turn_angle = 20
camera_vertical_turn_up_angle = 10
camera_vertical_turn_down_angle = 20
camera_turn_look_ahead_slerp_amount = 1.000000
nanobot_limit = 71
shield_battery_limit = 71
hit_pts = 12600
pilot_mesh = generic_pilot
mass = 150.000000
linear_drag = 1.000000
hold_size = 70
explosion_arch = explosion_co_elite
surface_hit_effects = 0, small_hull_hit_light01, small_hull_hit_light02, small_hull_hit_light03
surface_hit_effects = 150, small_hull_hit_medium01, small_hull_hit_medium02, small_hull_hit_medium03
surface_hit_effects = 300, small_hull_hit_heavy01, small_hull_hit_heavy02, small_hull_hit_heavy03
steering_torque = 43000.000000, 43000.000000, 143000.000000
angular_drag = 41000.000000, 41000.000000, 141000.000000
rotation_inertia = 8400.000000, 8400.000000, 8400.000000
nudge_force = 30000.000000
strafe_force = 20000
strafe_power_usage = 2
bay_door_anim = Sc_pi_vheavy_fighter
bay_doors_open_snd = cargo_doors_open
bay_doors_close_snd = cargo_doors_close
HP_bay_surface = HpBayDoor01
HP_bay_external = HpBayDoor02
shield_link = co_elite2_shield01, HpMount, HpShield01
hp_type = hp_gun_special_10, HpWeapon01, HpWeapon02, HpWeapon03, HpWeapon04
hp_type = hp_gun_special_9, HpWeapon01, HpWeapon02, HpWeapon03, HpWeapon04, HpWeapon05, HpWeapon06
hp_type = hp_gun_special_8, HpWeapon01, HpWeapon02, HpWeapon03, HpWeapon04, HpWeapon05, HpWeapon06
hp_type = hp_gun_special_7, HpWeapon01, HpWeapon02, HpWeapon03, HpWeapon04, HpWeapon05, HpWeapon06
hp_type = hp_gun_special_6, HpWeapon01, HpWeapon02, HpWeapon03, HpWeapon04, HpWeapon05, HpWeapon06
hp_type = hp_gun_special_5, HpWeapon01, HpWeapon02, HpWeapon03, HpWeapon04, HpWeapon05, HpWeapon06
hp_type = hp_gun_special_4, HpWeapon01, HpWeapon02, HpWeapon03, HpWeapon04, HpWeapon05, HpWeapon06
hp_type = hp_gun_special_3, HpWeapon01, HpWeapon02, HpWeapon03, HpWeapon04, HpWeapon05, HpWeapon06
hp_type = hp_gun_special_2, HpWeapon01, HpWeapon02, HpWeapon03, HpWeapon04, HpWeapon05, HpWeapon06
hp_type = hp_gun_special_1, HpWeapon01, HpWeapon02, HpWeapon03, HpWeapon04, HpWeapon05, HpWeapon06
hp_type = hp_elite_shield_special_10, HpShield01
hp_type = hp_elite_shield_special_9, HpShield01
hp_type = hp_elite_shield_special_8, HpShield01
hp_type = hp_elite_shield_special_7, HpShield01
hp_type = hp_elite_shield_special_6, HpShield01
hp_type = hp_elite_shield_special_5, HpShield01
hp_type = hp_elite_shield_special_4, HpShield01
hp_type = hp_elite_shield_special_3, HpShield01
hp_type = hp_elite_shield_special_2, HpShield01
hp_type = hp_elite_shield_special_1, HpShield01
hp_type = hp_thruster, HpThruster01
hp_type = hp_mine_dropper, HpMine01
hp_type = hp_countermeasure_dropper, HpCM01
hp_type = hp_turret_special_10, HpTurret01
hp_type = hp_turret_special_9, HpTurret01
hp_type = hp_turret_special_8, HpTurret01
hp_type = hp_turret_special_7, HpTurret01
hp_type = hp_turret_special_6, HpTurret01
hp_type = hp_turret_special_5, HpTurret01
hp_type = hp_turret_special_4, HpTurret01
hp_type = hp_turret_special_3, HpTurret01
hp_type = hp_turret_special_2, HpTurret01
hp_type = hp_turret_special_1, HpTurret01
hp_type = hp_torpedo_special_1, HpTorpedo01
hp_type = hp_torpedo_special_2, HpTorpedo01
HP_tractor_source = HpTractor_Source
num_exhaust_nozzles = 3