Heat shield yes maybe or no

[spencerdiesel]

So besides the factory filter and box being restrictive (something around 400 cfm if I remember?), does it not do a decent job of drawing cold outside air?

I plan on BHAF w/ some sort of shield, but wouldn't an unshielded filter pull in more hot air than cold? I say this because heat always seeks something cooler, and exh manifold heat radiates all up in that area?

[BC847]

The stock/OEM air filter box is a 100% cold air intake via a tube (constructed to act as a muffler) under the front of the box and opens into the radiator support. (bottom/right of the following image).




I've modded mine as such in the past . . . .




Then went crazy . . . .





I'm a big proponent of 100% cold air as the air is what ultimately pushes the piston (with heat of combustion added). Cold air is denser air and is the best place to start if you're gonna do forced induction.

[Remps]

I did a similar mod to one of my factory airboxes with an 8" piece of stovepipe, and cut the hole in the rad support to match up as well. It made a noticeable difference, the factory airbox feed tube is pretty small.

[spencerdiesel]

Thanks BC and Remps, didn't know the cold air tube looked like that, the images help a lot. So drawing from this, one would preferably draw 100% intake air from outside via tube? A little cool air is a lot better than a lotta hot, makes sense.

In diesel class, I've heard an increase of 1 degree in intake air equaled a 3 degree increase in EGT's. Are ya'll running the standard BHAF?

[DMan1198]

My plan is to try to fit 6" piping between my primary (my 467 has a race cover, so it's a 5.5" inlet), and the stock box, then modify the signal light for a hellcat style ram air

[Begle1]

"Hey dawg, nice hot air intake you got there."
-My words to most everybody I see with a crappy aftermarket intake system

[PToombs]

I should figure out something with mine. The filter is almost against the core support and gets almost no cold air.

[spencerdiesel]

Poke it through a stack-hole in the hood

[PToombs]

Wow. That's all I can say. (I already thought of it)

If it wasn't for the rain that would get on the filter I'd put a small scoop on the hood right there.

[RCCUMMINS89]

My thoughts on the whole thing?

It will make ZERO difference if it is a "hot air" or "cold air" intake.......does anyone have any idea how much air is going through the engine compartment at 60mph? Seriously........no one will ever convince me that it is getting heated up instantly before it goes into the filter by the heat of the engine. Especially when the factory hole is still directly in front of the filter, even when the stuff is removed.

[spencerdiesel]

Never thought about that part of it

[PToombs]

Thanks Eric! Now I can do nothing and not feel guilty! Lazy man thanks you!

[Begle1]

My thoughts on the whole thing?

It will make ZERO difference if it is a "hot air" or "cold air" intake.......does anyone have any idea how much air is going through the engine compartment at 60mph? Seriously........no one will ever convince me that it is getting heated up instantly before it goes into the filter by the heat of the engine. Especially when the factory hole is still directly in front of the filter, even when the stuff is removed.

Intake air sensors tell otherwise in many applications.

[RCCUMMINS89]

How many other applications is the filter directly behind the stock inlet hole? Can't compare it to like the newer trucks where same are right behind the turbo.