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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 06-30-2009, 04:53 PM
kineticenrage kineticenrage is offline
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Default yet another CAI question

before i owned my ram i was real big into the import scene and learned that a cold air intake is all basically the same thing it's just the filter that you put at the end. what my question is, if i were to put a K&N filter in the stock air box, will that be sufficient or is the stock air intake system just to restrictive?
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Old 06-30-2009, 10:24 PM
Leadfootluke Leadfootluke is offline
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The Hemi-Hat itself if restrictive. So a drop-in filter can only do so much.

A performance intake itself depends on the ability to allow unrestricted flow to the engine. The basic kits are 4" tubing with a cone filter and maybe a heat shield, which has been looked into as being restrictive in itself (as it turbulated and inpeeds on airflow TO the filter).

Thats why the BFI from AirFlow Innovations sticks out. The filter is a 6" base and sits upon an intake with 6" conical construction. It allows for incredible flow and power, and increase the growl of the engine by LARGE volumes. So yes, an aftermarket intake, and a good one at that, will be a great benefit over stock or just a drop in.
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Old 07-02-2009, 12:39 AM
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most stock boxes use the ever lovely flat pad filter which doesn't have a very large surface area, the aftermarket CAI with cone filters have more breathing area, but are still stuck in the same air intake volume problem. A solution is to get a FUNCTIONAL ram air hood which moves air into your air box based on how fast you go (faster = better...go figure). off the line, not much of a benefit, but at speed, it comes into its own. Otherwise you do have more airflow due to less restriction which is still a plus.
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Old 07-02-2009, 02:06 AM
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my first homemade was with stock airbox with k&n minus the air resonator...I now run the ramhammer (BFI now) and it makes a world of difference..
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