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Custom Dodge Ram Performance Mods - Engine - 5.7 HEMI V8 Discuss modifying your Dodge Ram with Performance Parts and Accessories!
Factory Spec: 5.7-liter HEMI V8 engine - 390 horsepower, 407 lb-ft of torque.


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  #1  
Old 06-20-2015, 06:09 PM
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dragrcr dragrcr is offline
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Default S&b intake conversion to ram air

I have this RCSB HEMI 8 Speed AUTO that was pretty fast stock. Then I put a S&B intake and a DYNOMAX Cat Back on it and it picked up about .15 in the quarter mile. But I noticed the S&B intake had the dual snorkel that bolted on with 4 bolts. So I started dreaming and I am in the process of making a 6" RAM AIR. The 2 hardest parts are done and I do admit this has been a lot of work and time to do. To put the funnel in the bumper cutout required cutting out some bracing and it took me a while to attach it and so on. To make the new air box inlet took quite a while too. I also had to cut a metal tab off the frame that is not used to make room and will be cutting the plastic tub also to clear the tube coming down. Now I only have to connect the two and black out the funnel in the bumper and I will be set. I am also installing a "T" right after the funnel to trap debris & Water and as a place to clean out.

Gee, hope all this work was worth it. I will give track results as soon as I can. Of course it is getting super hot so it may not actually be faster until the fall.
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Last edited by dragrcr; 06-20-2015 at 06:17 PM.
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  #2  
Old 06-20-2015, 06:30 PM
Hornet Hornet is offline
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It sure as hell won't hurt that's for sure.
You put some thought into yours

That's a work of art if i do say so,i like it,lol

Are you going to incorporate a screen on the inlet.
I didn't go as far as you.
I went with a 3" inlet and tube,but i find i'm getting bugs on the air filter.

Did you add any sort of diffuser inside the box.

If your ram air is coming straight in at the filter,you might want to add a diffuser of some sort so you don't have air shear past the intake tube.

My air box is an Air Raid with a custom built clear cover aka S&B ,and i just bent up a piece of 18G flat steel about 4" wide with a step to give about an inch of clearance and bolted it to the inside of my airbox so that the air coming in hits it instead of rushing past the intake inlet in a shear pattern.

Last edited by Hornet; 06-20-2015 at 06:33 PM. Reason: His pic's showed up
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  #3  
Old 06-20-2015, 06:50 PM
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Quote:
Originally Posted by Hornet View Post
It sure as hell won't hurt that's for sure.
You put some thought into yours

That's a work of art if i do say so,i like it,lol

Are you going to incorporate a screen on the inlet.
I didn't go as far as you.
I went with a 3" inlet and tube,but i find i'm getting bugs on the air filter.

Did you add any sort of diffuser inside the box.

If your ram air is coming straight in at the filter,you might want to add a diffuser of some sort so you don't have air shear past the intake tube.

My air box is an Air Raid with a custom built clear cover aka S&B ,and i just bent up a piece of 18G flat steel about 4" wide with a step to give about an inch of clearance and bolted it to the inside of my airbox so that the air coming in hits it instead of rushing past the intake inlet in a shear pattern.
So far no screen or diffuser is planned. The intake did not originally have a diffuser so I am not sure one is needed. Also it is not obvious, but I am using the bumper cutout on the opposite side of the truck and the "T" trap is after the Funnel and a 90, so I am thinking not much will make it to the filter. Plus I do not drive through butterfly storms etc. It is pretty clean around here. Of course if leaves & Bugs waste the filter I will add as necessary.

Is yours under the valance? I chose the bumper to hopefully avoid some debris.
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  #4  
Old 06-20-2015, 08:14 PM
Hornet Hornet is offline
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I did one in the tow hook cut-out on my old 2013 ST like yours.

On this truck,i cut out a piece of the black plastic insert in the lower valence.
Mines probably close to the same height off the road surface as yours
The plastic insert for being 3 ft long is cheap,28 bucks at my local dealer,so it didn't bother me to cut a notch into it,lol

I didn't cut any steel to route mine,so i used 3" flexible ducting to get around the frame horns/tow hook brackets etc.

I really like what you did.

I've sorta been kicking the idea around of re-doing mine to the center of the plastic insert ,basically in the area a front licence plate would be situated,and using fibreglass to build the scoop.
It's wide open behind the Sports bumper in the center of the truck,so there'd be nothing to route around
Kurtis/Cndoil planted the idea,of doing it in fibreglass

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Last edited by Hornet; 06-20-2015 at 08:42 PM.
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  #5  
Old 06-21-2015, 08:04 PM
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Default Finally finished !

FINALLY FINISHED ! Here are some more pics. It runs great and it is 90 deg outside. I will try and run it Thursday night and see how it does. I decided not to install the "T" trap as it was too heavy and would have required some sort of support to be fabricated. Wish me luck on the butterfly & leaf accumulation. 6" all the way. The part in the engine bay was insulated and sprayed with rubberized undercoating and the piece that crosses under the radiator was insulated as well just in case.
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Old 06-21-2015, 08:14 PM
Hornet Hornet is offline
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LOL,bugs create menthane when they decompose,might be a benefit

That's a wicked ram air set-up,well thought out,and looks good.

What did you use as a cover in the wheel well

Now you're making me think i need to go back to the drawing board on mine,lol
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Old 06-21-2015, 09:35 PM
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Quote:
Originally Posted by Hornet View Post
LOL,bugs create menthane when they decompose,might be a benefit

That's a wicked ram air set-up,well thought out,and looks good.

What did you use as a cover in the wheel well

Now you're making me think i need to go back to the drawing board on mine,lol

Shelf Paper from Home Depot . It is about 1/8" thick and lightweight and rubberized. LOL
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Old 06-22-2015, 08:40 AM
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Nice Work !

when I saw the first pic of HVAC ducting I thought OMG looks like a hack,
but you cleverly pulled the project together in an impresive professional manner.

in the classic Dodge 'Do It Yourself' tradition!
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  #9  
Old 06-23-2015, 07:35 PM
jag1886 jag1886 is offline
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Do you realize how fast you actually have to go to get a ram affect?
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Old 06-23-2015, 07:53 PM
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Not very fast actually. Helps from a get go I bet. My old ZX-11 had ram air and it ran pretty good off idle lol.
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