Question: how long does it take for the bunker to fill up gta 5?
Answer: A bunker without upgrades generates 1 research unit each 5 minutes (filling the entire bar takes about 8.5 hours). However, a fully upgraded bunker generates 1 research unit every 3.5 minutes (filling the entire bar takes about 3.5 hours). Time in between using 1 research point: Every 2.5 minutes.