Is it more effective to have one giant filter or two smaller filters?
I would think more air+ more fuel= more power

my intake (z1) has two filters but I was thinking maybe if I had a bigger surface to grab the air I could turn that into more power?

What if I had a filter the size of the grill? Overkill?

I know the takeda intake and couple others have just one filter that connects both sides of intake

 

On my Mazdaspeed 3 I saw no difference between a small Cobb filter and a huge AEM dry flow (both are dry flow filters) and the AEM was about 2.5 times the surface area. This was a forced induction application which typically shows higher gains with equal mods but take it as you will

 

Only if the filter used is more constrictive than the components can support.

Here's my example: when I was a young man, I modified my 82 TransAm with aftermarket intake manifold, a higher capacity carburator, and a larger exhaust. However, at the time the only filter stack that I could find which would fit under the hood was a somewhat thin 10" disc. Sometime later, I discovered an 18" lowrider filter stack, that actually wrapped around the carb. The change to the car was so dramatic that it was humbling. Felt like an idiot.

I'm no engineer, but I think the only way to increase power re. airflow on your car would be to increase the air density... not the surface area. i.e. cold air or forced induction.

 

don't forget that you can only squeeze so much air past the throttle bodies and don't assume that the ECU will allow for more fuel just because you have more air. It will do so but only within what is programmed into the ECU and that wouldn't be very much anyway.

Also remember that you are not really adding that much more air over your stock air box without forced induction.

 

thanks y'all this is exactly what I was wondering. Sounded to good to be true to gain bunch more power with a huge filter cause then somebody would be selling them like that lol.

 

Im just trying to gain some more power lol not much I can do besides FI... but glad my question seems to be answered. I really need to look into lightweight parts next

 

"some power" - you are probably not going to get any more than 2 - 4 HP based on the air filter used - even that may be very optimistic.

 

I think it's hilarious when I see people bragging about their 4" intakes as if the larger diameter will "force" more air in, like a turbo or supercharger.

 

I switched to a dual filter setup on my takeda cai and it actually helped my throttle response. I feel that each bank pulling in its own air and not using a combined big filter is the better way to go.