airbox mods

[clndesl]

I was wondering how i can get the most out of my stock airbox. Ive heard of people modifing them. anyone have any info.

 

[RDyson]

You can use a holesaw and cut some 2" holes in the bottom. It will allow more air to your filter.



Randy

 

[wcjp]

Bought the parts from Home Depot for about $8.





Airbox

 

[BLambert]

Not my place to tell anybody what to do with their truck, but Issue 59 (the latest) of TDR provided some test numbers that showed that it is way more important to keep warm/hot under-hood air out of the induction system for the best useable power in these trucks. Yeah, the "Low Restriction", "Open Sided" BHAFs (Big Honkin Air Filters) look cool, but testing shows that any small gains from these setups is quickly lost and show a net loss over stock air boxes. Reason being that the motor much prefers cooler air from the fender (stock location) over hot, under-hood air. Cooler is way more efficient. Drilling out the box will actually result in a loss of power after things get warmed up. It's your truck, do what you want, but once you punch out the bottom of that box, you can't go back without spending some $$ and you will surely not get a gain in power. Your call, but the numbers are the numbers and you'll likely not get what you are hoping for. Good luck.

Byron

 

[AMcCormick]

The other thing to think about is how dirty the engine bay can get if driving in the dirt/mud.

 

[clndesl]

yea maybe ill just get an intake. what is the best set up. price isnt too important.

 

[AMcCormick]

I've got an AFE sytem on the way to go with an intake manifold. Should have it shortly. Just installed the manifold this afternoon.

 

[PJay9]

Bought the parts from Home Depot for about $8.





Airbox

If you cut away the drain grid on the inside of the air box you'd get a better flow to the filter, IMHO... NICE job! May I suggest that you look for something a bit more substatial for the intake hose than the dryer vent tubing. Try at your local hose supplier that caters to folks that need backhoe lines rebuilt... they usually have big flex that will be much better for the intake side and smooth inside to cut down on drag and air turbulance. It is just phyisics.



I agree that the holes in the bottom is not great unless you pick up the air where it is cooler. Go see this site for ideas. Performance Systems Manufacturing, LLC



Eliminating the flex hose to the turbo is a good thing it gets the restrictions out of the way... things spool up faster and runs cooler and easy. In fact, I switched all my black rubbery hoses for blue silicon in the air intake side. IMHO, PJ

 

[Cattletrkr]

Bought the parts from Home Depot for about $8.


Airbox

I more or less copied that the last time I saw you post it. I have fog lights so I had to stay behind the bumper. I cut a long hole in the black plastic flap that I ran the dryer hose thru. It just sits behind the bumper w/o any attachment needed. If I ever think about it I'll get some pics.

I guess I never thought about a smoother hose. I can't tell any difference in spoolup or EGT with my modded box vs. BD X-intake w/AFE PG7.

 

[NIsaacs]

In a naturally asperated gasser, we have spent lots of time and money on intake mods, usually with some degree of success, enough to make it worthwhile and a common practice.



However with the turbo diesel, the turbo overcomes any deficiency that might exist with the factory intake system. I forget the exact amount, but Cummins allows quite a bit of restriction on the intake system, with no loss of performance.



Be careful with intake mods on the turbo diesel, as the turbo generates an awesome amount of vacuum and will find weak spots, with dirt intake as the result.





"NICK"

 

[wcjp]

If you cut away the drain grid on the inside of the air box you'd get a better flow to the filter, IMHO... NICE job!

I thought about that while buying the parts. I was concerned about small rodents using the tubing as a runway.