250w hps cool tube fan question??

I am about to build a grow box at 5 x 2 x 3. I am planning on using a 141 cfm computer fan as cab exhaust pushing through a homemade carbon filter (using passive intake in the cab). I am also making a cool tube and thinking about using a 110 cfm computer fan as an exhaust for the tube. The cool tube exhaust and cab exhaust will be separate from eachother. Is this enough fan power to keep temps down in my box??

my box is alomst the same size as yours but i have a a 150w ad i have 3 fans pulling air through my light and 2 for heat control in the box. i think your going to need more air flow.

yeah thats what i was thinkin...

what are the cfms of the fans you have runnin on your cool tube?

i dont know exactly waht the cfm is but the 3 for the cool tube are some where around 80-100 cfm i think you need to be looking for around 250-300 cfm range for you seup. let me know when you get it done i would love to see some pics

Will do brotha!