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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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  #11  
Old 06-29-2010, 11:58 PM
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..totally agree...no right or wrong..just correcting the misinformation..I mean, who installs a cai for sounds and looks..kidding right?
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  #12  
Old 06-30-2010, 12:34 AM
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Originally Posted by chefred112 View Post
..totally agree...no right or wrong..just correcting the misinformation..I mean, who installs a cai for sounds and looks..kidding right?
Ahhhh......just about every F**d and C***y owner in our oversized village!

What I have observed by reading through a lot of posts regarding CAI on the Gen4's, is it does make and difference....but much less than with previous generations. I believe that this is due in part to a better designed induction system on the Gen4 trucks. After all, they were shooting for more horseys, and improved induction is a definite asset. Cool part....we get more HP right outta the box. Not so cool part.....regular bolt-on mods don't net as much as they used to. So either way you look at it, the stock induction system is pretty good for OEM. A really good CAI will give you a little extra, and if you only need an extra .05 or .1 to bet your rival...this just might do it!
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  #13  
Old 06-30-2010, 09:07 AM
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Well said and thanks. I totally get the track guys and agree with their thinking...for me, I want to try to make the OEM air box work because it seems to be a more robust and effecient system for off-road...though I love to go fast too. So far, I have a drop in flat panel K&N and am looking for ways to open the box a little more. In addition I have a Mufflex 18" on the way and will ordering a Predator soon...probably use the 93 performance tune in my 2010 Ram 1500 Crew 4x4 5.7 Hemi.
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  #14  
Old 06-30-2010, 11:31 AM
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when I still ran the oem air filter I drilled 4-5 1" dia holes in the bottom of the box to allow more air in because I made the air tube 4" and did away with hemi hat..
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  #15  
Old 06-30-2010, 11:53 AM
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Nice....did you notice much performance difference? What's a HEMI Hat?
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  #16  
Old 06-30-2010, 02:37 PM
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the 03's to 08's had them (air resonators). I bet thats a small factor in the 09/10 hp improvement because they did away with them..
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  #17  
Old 07-04-2010, 10:18 PM
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Like others have said the gen 4's built in box with pre-plumbed outside air inlet is pretty good for an OEM set up. If you just want to tweak it some, AFE's CAI, beside swapping out the corregated tubing with smooth, replaces the stock filter and air box top with their big filter in a 'box' that is clipped to the stock box bottom by the OEM clips. No R&Ring or cutting the fender liner - fast, easy swap.
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  #18  
Old 07-04-2010, 10:27 PM
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That's what I'm thinking. Just replace the tube from the throttle body to the filter box, and fab up a way to get a cone style filter in there. Voila! DIY CAI.
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  #19  
Old 07-04-2010, 10:41 PM
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I know CAI's have evolved quite a bit over the years,,,,

The OEM corrugated tubing is corrugated for a couple reasons. Never really understood why till I put a Volant on my 00 Silverado....

Long story short, the corrugations allow the engine to 'torque over' on its mounts without placing pressure on the airbox, or, having the airbox place pressure on the TB,,,

(Gets rid of vibrations as well)

Back in 'the day, Volant used to use 4" solid rubber radiator hose for their couplings,,,(Now they have 'evolved' into using silicone 'hump' hoses and reducers)

The rubber 'radiator' hoses Volant sent me for my 00 silverado CAI were stiff as a board,,, The TB on a 5.3 faces forward. The air tube turned 90 degrees and ran off to the box, which was bolted down solid to the metal air box support plate.

Eventually, the motor torquing over on its mounts loosened all the bolts holding the airbox down,,, There was just no 'give' in the intake system,,,

I ended up eventually putting intake manifold gaskets on the 5.3,,, This was a few years after the Volant came off and was replaced with the OEM. Can't say if the Volant was the direct cause, but the intake had never been off or touched since it was new,,,,

ANYWHO, CAI's have evolved over the years,,,, Glad to see the hump hoses and rubber mounts,,, And I understand the reasoning behind the OEM corrugated tubing

Last edited by HoustonHemi; 07-05-2010 at 08:18 PM.
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  #20  
Old 08-21-2010, 10:23 AM
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That's what I'm thinking. Just replace the tube from the throttle body to the filter box, and fab up a way to get a cone style filter in there. Voila! DIY CAI.
chit, did have a chance to do anything with this particular mod, oem box? Ive done the drop in KnN filter. Just wondering what people are doing with the corrugated tube, thanks
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