Stainless Steel Airbox for direct air intake kit

[dieselkid]

Here is this airbox that I came up with for my intake kit that is sold in the classified section. It's stainless.

[sixto]

I thought you found a new use for a 603 trap oxidizer

Sixto
87 300D

[rcounts]

Looks good. Why didn't you add a nipple for the oil trap hose to connect to?

Any idea what you'll charge for it? How about both as a kit?

Thats a small airfilter.

[pwogaman]

I'm not quite sure why you would want to restrict the airflow through the smaller opening? Seems like the device would create more turbulance and turbo-lag. How does it perform?

[rcounts]

Originally Posted by ForcedInduction

Thats a small airfilter.

Assuming the tube is 3" then it looks like a standard 6"x5"x6" to me (6" base dia, 5" end dia, and 6" high).

If it is the closed top type, it will have approximately 100-105 square inches surface area (not counting pleats). For the reverse cone top type, they have about 30 square inches more surface area.

Not as much as the stock filter which has about 150 square inches of surface area (again, not counting pleats).

On the other hand, it doesn't have to suck air through a piece of sheet metal punched full of holes pressed against its inside surface - like the stock airbox does either.

I'd like to see a flow test of this compared to the stock setup.

That SS case will be heavy too, what supports it?

[dieselkid]

yeh, I'll probably make a custom bracket. I honestly don't think this airbox would improve any engine performance over just having the filter in the engine compartment like I have with the kit that I made, but since some people thought that was an issue I went ahead and made an airbox to test this principle. I'll let you know what the verdict is. I guess if people really wanted something like this with the kit I could make them, but again I'm not sure it's necessary.

p.s. the conical side diameter is the same as the o.e.m. plastic black tube coming from the air collector (see first picture to the left). The purpose of that is to connect right to the air collector to make this a true "cold air intake". Again the fresh air intake side of this airbox is no more restrictive than stock. After the filter the air goes directly into the turbo rather than the mess of the original. Plus it's not an old, rattle rust box that takes up 30% of your engine compartment.

Nice workmanship, but it still seems to be a solution without a problem.

[jkoebel]

His hobby appears to be metal fabrication. If I knew how to do that, I'd probably replace every sheet metal part of my car with something custom just because I could.

[Eric Eliel]

If you keep the car long enough and this replaces the ridiculously designed MB air filter bracket, ya might save some money. Yours certainly looks much nicer.

[bgkast]

That filter looks to have more surface area than the GM 3.8 filter.

Originally Posted by Eric Eliel

If you keep the car long enough and this replaces the ridiculously designed MB air filter bracket, ya might save some money.

It would be far cheaper just to reinforce the braket by welding rods on the underside of the weak points.

Originally Posted by ForcedInduction

It would be far cheaper just to reinforce the braket by welding rods on the underside of the weak points.

Actually, it's cheaper to just replace the bracket once every 20 years, maybe.

[Mister Byrnzoil]

looks good, I applaud most people who see a so-so design and believe they can improve upon it.

the issue I'm having is the vibration of the engine is stressing the rubber joints, my filter is hardmounted above the a/c thingie, I'm considering cutting the steel inlet tube between the filter and the turbo inlet and adding another rubber joint, allowing it to flex a bit more.

good luck and keep modding.