CFL growbox temperature question

hey
i am a first time grower. have spent a ton of time reading every thing on this suberb, very useful website and built my own 2x2x2 growbox. i currently have 6 42 watt daylight cfls and 2 23 watt 2700k cfls on 4 LST'ed bagseed babies about 3 weeks into veg. using a AC 120V dayton 100 cfm fan for exhaust and a AC 120V tubeaxial 40 cfm for intake. i didn't think i would have this problem using cfls (the ballasts get very hot) but the temps in the box began to high when i put the carbon filters on and i ended up halting growth for like a week. took them off but still cant get the temps down below 90 without the door open and a large fan blowing fresh air right in. should i add another exhuast fan or intake or both? it already takes a large oscillating fan to cool the box down would a small wall mounted one inside do anything for the temps(besides promoting strong stems)?
most importantly, would using a150 or 170 watt hps instead of eight cfl bulbs with eight heat producing ballasts(within the box) reduce heat? or is a 2x2x2 space much too small for HID lighting?

appreciate any response thanks

add another 2 exhaust fans and make a passive intake too(opening with no fan in it)

i think the temperatures are getting high because of you intake and exhaust. you are creating negative air pressure in the box, the exhaust fan is trying to extract more than what is coming in. try removing your intake and see if your temperatures drop. i dont know the temperature difference between a 150-170 hps would be compared to your current lights, but the plants would probably grow better with a hps. if you use your dayton fan with a cooltube connected to hps ulb i think it would be fine....

does the passive intake take in more air than one with a fan on it? i was under the impression that a fan would increase intake

cameron666 said:

i think the temperatures are getting high because of you intake and exhaust. you are creating negative air pressure in the box, the exhaust fan is trying to extract more than what is coming in. try removing your intake and see if your temperatures drop. i dont know the temperature difference between a 150-170 hps would be compared to your current lights, but the plants would probably grow better with a hps. if you use your dayton fan with a cooltube connected to hps ulb i think it would be fine....

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so you are saying that the intake fan is actually restricting air flow instead of increasing it

your intake should be 2-3 times the size of the exaust from what ive read. just try making them bigger and passive and see what happens. i cut my temps down 10 degrees just by changing my 11x 1 1/2in holes into 3 bigger intakes