homemade cold air intake?

BLKDODGE04 · Sep 1, 2012

any ideas on how to make a cold air intake? i cant see spending 350 bucks for a piece of tubing and a filter, i have aluminum and a welder so i can make the box for the filter. any ideas for the tubing? pvc pipe maybe? anything would be helpful

TexasRammer · Sep 1, 2012

pvc! Ive seen a few member have made one out of pre bent pvc and it looks pretty cool too

BLKDODGE04 · Sep 1, 2012

that cold air kit help on power and throttle response also?

TexasRammer · Sep 1, 2012

Eh a little bit, nothing major

TheSatinPumpkin · Sep 1, 2012

Its a complimenting mod but your not going to get whiplash so if you can save $$ by doing a DIY vs up to a few hundred for aftermarket then its a good option to look into.

BLKDODGE04 · Sep 1, 2012

what size tubing would i need? its pouring like hell outside otherwise id go look

sullivan · Sep 1, 2012

Here after while Ill go measure the circumference of the cold air intake I have.

Thinking its going to be a flat 3" for the diameter

BLKDODGE04 · Sep 1, 2012

i thought it would be a 3 inch tubing. a buddy of mine made one for his truck and thats what he used.

Hemi450hp · Sep 1, 2012

For the best performance gains, try to go with a tube that is 4-6" at the filter and down to 3.5" at the throttle body. This will take some fab work, but will show great gains.

TexasRammer · Sep 1, 2012

I used 3"

sullivan · Sep 1, 2012

Hemi450hp said:
For the best performance gains, try to go with a tube that is 4-6" at the filter and down to 3.5" at the throttle body. This will take some fab work, but will show great gains.

There is a cold air intake that is made for our trucks that is exactly what you describe. Forgot the name of it though, its carbon fiber.

TheSatinPumpkin · Sep 1, 2012

When i think of carbon fiber for Dodge i think of LMI but he does not have a model for the 3G, well the 5.7 manifold anyway.

Unless you mean the BFI Composite.

BLKDODGE04 · Sep 2, 2012

Hemi450hp said:
For the best performance gains, try to go with a tube that is 4-6" at the filter and down to 3.5" at the throttle body. This will take some fab work, but will show great gains.

how much better is this way than just runnin 3 inch all the way?

TheSatinPumpkin · Sep 2, 2012

Hemi450hp said:
For the best performance gains, try to go with a tube that is 4-6" at the filter and down to 3.5" at the throttle body. This will take some fab work, but will show great gains.

Oh yeah!!!

Hemi450hp · Sep 2, 2012

sullivan said:
There is a cold air intake that is made for our trucks that is exactly what you describe. Forgot the name of it though, its carbon fiber.

It is called a BFI ramhammer, and is what is pictured above. Only problem is that they are no longer made.

This design is as good as it gets. What happens is that as the air is going into your filter you are sucking in 6" of air. As that compresses to a smaller diameter, it will increase the velocity of the air and in turn make more power.

That is the main reason why our port design on our throttle bodies starts out bigger at the outside of the tb, and then closes up a little at the TB blade.

Budakane · Sep 2, 2012

Matt, how bout making ur own variation in a different material, I would def buy one

Budakane · Sep 2, 2012

Mybe go like 5 or 5 1/2? I remember these, Lance......had a great design, but my guess is couldnt keep up with demend

Hemi450hp · Sep 2, 2012

I dont know what happened to him personally, but he ended up taking alot of money from mutiple people and not delivering the intakes. It basically ruined his name and the company all together. JJ used to work with him, so I'm sure he knows much more about what happened than I do.

As for building these myself, I have not even looked into this. I would rather it be made of plastic than metal, but this might be something for me to take on in the future.

BLKDODGE04 · Sep 2, 2012

any ideas on how to build a custom intake like the one pictured above? maybe out of aluminum? 3.5 - 6 or 5.5 pipe? it would be pretty easy to taper a pipe from 3.5 to 6 and then just put a 6 inch elbow on the end of the pipe

Hemi450hp · Sep 2, 2012

Try to stick with plastic because it will dissipate the heat faster. And try to put the filter directly behind the passenger side headlight as this is where the coolest underhood temps will be.

homemade cold air intake?

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