Air filters for ITBs

Black91n/a · 01-01-2010, 06:58 PM

No offense, but pretty much any arrangement where you have a small filter on the horns, well, sucks. If you look at factory ITB setups on BMW's and such, they have one thing in common, they use a plenum. That is what I suggest that you do if you want it to perform as best as possible. This allows you to do 2 things, for one, you can take "cold" air from outside the engine bay and feed it to the engine, but secondly, you can get more filter area and get it away from the TB's, reducing the turbulence and giving better performance.

01-01-2010, 06:58 PM	#13
Black91n/a Rotary Fan in Training Join Date: Mar 2009 Posts: 39 Rep Power: 0	No offense, but pretty much any arrangement where you have a small filter on the horns, well, sucks. If you look at factory ITB setups on BMW's and such, they have one thing in common, they use a plenum. That is what I suggest that you do if you want it to perform as best as possible. This allows you to do 2 things, for one, you can take "cold" air from outside the engine bay and feed it to the engine, but secondly, you can get more filter area and get it away from the TB's, reducing the turbulence and giving better performance.