2 oz per plant probably if you have co2. Looks like your having some heat problems- I did a similar size grow with 600 hps and some LED's and got 9oz in a closet the same size as yours. Good luck
nice setup man how many plants do you have. I have the same kind of sytem with the air cooled hud what size fan do you use and does the glass still feel a little hot?
Im using those stanley blowers converted over with HAVAC plumbing. It is warm to touch. I have two plants in there and I am in the process of building a 6x8 grow room. I have 13 clones under fluoresents waiting to start a SOG plus to mothers veging.
Its hard to see but there is a homeaide carbon filter running through a stanley blower. Temps are about 80 - 85 with light on and 65 with lights off. I use that little ceraminc heater with built in thermostat at night.