Does this setup disrupt the airflow?

[Shaqo_Wyn]

So I was wondering if the air that bottom intake fans bring into a pc case disrupt the path of the airflow from the front intake fans to the rest of the components. To help you visualize this: say for example in a Corsair 450D, you can remove the harddrive cages and install two 120mm bottom intake fans to have them pulling fresh air into the case along with the two 140mm fans you have as front intake. Will they disrupt the optimal path of the air that goes over the components and out the top and rear exhaust fans, or is it just more fresh air coming into your case giving better cooling and in this case positive air pressure. 

[Wats]

you need to somewhat match your exhaust, too much pressure wont cool well. So.. three exhausts and four filtered intakes would be a good example.

[spwath]

So I was wondering if the air that bottom intake fans bring into a pc case disrupt the path of the airflow from the front intake fans to the rest of the components. To help you visualize this: say for example in a Corsair 450D, you can remove the harddrive cages and install two 120mm bottom intake fans to have them pulling fresh air into the case along with the two 140mm fans you have as front intake. Will they disrupt the optimal path of the air that goes over the components and out the top and rear exhaust fans, or is it just more fresh air coming into your case giving better cooling and in this case positive air pressure. 

It would be fine

[LogicalDrm]

I don't see why it would. You can always adjust speeds so that ie. front fans just bring air in and bottom ones påush it towards components. So bottom fans could run at higher rpm and be like ones meant for rads (can't remember what they are called) and front ones with lower rpm and just adding fresh air for flow. This would need good exhaust to keep everything flowing on right direction.

[Shaqo_Wyn]

Thanks for the answers guys.