440forPOWER

Hello, I have been reading a lot of posts on people cutting holes in their stock airboxes. Does anyone have pics of their swiss cheese air boxes? Is there a wrong way to do this? Any tips? THANKS

flashgordon

theses arn't swiss but but BHAF I like the sec link best but donn't think that i could duplicate with such craftmenship!!
https://www.dieseltruckresource.com/...sort=1&cat=500

https://www.dieseltruckresource.com/...sort=1&cat=522

flashgordon

that didn't work lets try this!
https://www.dieseltruckresource.com/...ight=stock+pot

https://www.dieseltruckresource.com/...sort=1&cat=522

there we go...love the stanless cooking one

kennedy

until I get my BHAF box built, I basically just cut out the whole front of my factory air box.

jrussell

Another option is to just remove the factory air box entirely and use 2 bungy cords to hold the stock filter onto the "plate" that goes between the filter and intake hose. One of the bungy cords can also wrap around the stock jack extensions to hold the filter up off the inner fender and suspend it in air.

Worked for me until I got a real BHAF.

Falcon1

I drilled 3 - 4" holes in my stock air box. Need more air
Greg

edwinsmith

I think that there should be some concern about the quality of the air that's getting into the airbox. If you swiss cheese the box you let heated air from the radiator in which isn't a good situation.

Edwin

jrussell

This is definitely true, but isn't the heated air effect reduced to an insignificant amount once the vehicle is above 20mph or so? The air coming into the engine compartment (even through the radiator) should be fairly cool once you're moving above 20mph or so.

Has anyone actually noticed a real power difference after adding a heat-shield cover/mount to their open intake?

Bill Tomlinson

I drilled lots of holes in my airbox and was rather disappointed with the results in hot weather.... so I add duct tape when it is hot and remove it when things cool down a bit. Seems to work better. Being a non ic truck makes it a bit more critical. This would be in 30 degree weather pulling a 5th wheeler. The stock-pot and bhaf combo looks like a real winner. I must try it asap.

Bill Tomlinson

30 degrees celcius that is...

edwinsmith

How hot is that in dog degrees?

Bill Tomlinson

Well if you are going to hound me about it, in the more backward parts of Austria where Mr. Fahrenheit put the lowest and highest temperatures recorded locally on a zero to one hundred unit thermometer it is something like 86 degrees.

Just a bit too warm for good cat chasing.