Burst = keep your finger on your fire button until it won't shoot anymore .
vector normal: 5 secs.
vector + cooler: still 5 sec
vector + radiator: 7 secs
vector + cooler + radiator: 7 secs
Cooldown = how fast your weapon cools down after shooting (faster cooldown = more bullets down range = more DPM)
close before overheating
Vector normal: 3 secs
vector + cooler: 2 secs
vector + radiator: 5 secs
vector + cooler + radiator: 3 secs
after overheating
Vector normal: 4 secs
vector + cooler: 3 secs
vector + radiator: 7 secs
vector + cooler + radiator: 4 secs
Add a radiator: longer burst and longer cooldown
Add a cooler: same burst and shorter cooldown
If you combine a radiator and cooler you get a longer burst with the normal cooldown of the weapon. Hope the explanation helps.
Edited June 16 by Kirowetz