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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 05-29-2014, 11:57 PM
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Thanks I really appreciate all the tips and thoughts.
Had this for a couple of years now and just getting started with some upgrades
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Old 05-30-2014, 02:59 PM
twooldfarmers twooldfarmers is offline
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on many of the factory 'outside the engine bay' Cold air intake sources you will find they have much more of a ram air effect where they are positioned than any of these purported to be cold air intake cone filters that you pay 3 to 500 bucks for and are buried behind the radiator support inside a screamin' hot engine bay

they are a farce ... plain and simple

think about it for a moment

the increased induction noise makes us think we are going faster, it ain't so
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  #13  
Old 05-30-2014, 03:57 PM
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Quote:
Originally Posted by SweetLeaf View Post
I've seen some mild gains maybe 10+ HP using the K&N. Sounds nice with the exhaust
Which K&N?
The full cold air or just the filter.
Not looking to race it or anything just a bit snappier and better throttle response would be nice.
10 HP is fine for me with a relatively cheap update to stock
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Old 05-30-2014, 04:31 PM
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Quote:
Originally Posted by wr986 View Post
Which K&N?
The full cold air or just the filter.
Not looking to race it or anything just a bit snappier and better throttle response would be nice.
10 HP is fine for me with a relatively cheap update to stock
Everybody knows their truck. And I know the throttle response was a noticeable improvement with my drop in K&N. if I had to do it again I would go with Vararam.
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  #15  
Old 05-30-2014, 04:42 PM
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Quote:
Originally Posted by HammerHead View Post
Everybody knows their truck. And I know the throttle response was a noticeable improvement with my drop in K&N. if I had to do it again I would go with Vararam.
Ok, Ill take a look at them. Never had any dealings with Vararam
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  #16  
Old 06-02-2014, 01:56 AM
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absolutely none of the real fast guys here run a stock air box in their trucks...farce or not..it's always the real slow guys trying to convince the fast guys that cai's or bigger intakes won't work , our hemi's like to breathe and aint no one gonna tell me this isn't going to work, I've run mine for many years watchin my track times really start to drop after I installed mine...
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Old 06-02-2014, 02:37 AM
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Sounds like the way we made power in the old school hot rods works on modern machines as well. get air in get air out.
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Old 06-02-2014, 02:41 AM
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yup..to a point our pcm's will learn new flow charateristics (both intake an exhaust)...havin a tuner will enhance that and custom tuning make it optimum..
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  #19  
Old 06-02-2014, 03:16 AM
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I completely understand the logic that most CAI's are pulling the hot air from the engine bay but there are systems that come with a heat shield like the K&N filter.

http://www.knfilters.com/search/prod...x?prod=63-1561

It also has a dyno chart that shows that they received 17+ HP.

http://www.knfilters.com/dynocharts/63-1561_dyno.pdf
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Old 06-02-2014, 06:42 PM
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Quote:
Originally Posted by chefred112 View Post
absolutely none of the real fast guys here run a stock air box in their trucks...farce or not..it's always the real slow guys trying to convince the fast guys that cai's or bigger intakes won't work , our hemi's like to breathe and aint no one gonna tell me this isn't going to work, I've run mine for many years watchin my track times really start to drop after I installed mine...
I don't disagree with that logic at all. The more air you can get in/out the better. Hence the reason for forced induction. The difference is that the "real fast guys" have a lot more mods than the average guy just looking to put a CAI on; maybe an exhaust as well. Comparing apples to oranges doesn't help anything.

Quote:
Originally Posted by locapitano View Post
I completely understand the logic that most CAI's are pulling the hot air from the engine bay but there are systems that come with a heat shield like the K&N filter.

http://www.knfilters.com/search/prod...x?prod=63-1561

It also has a dyno chart that shows that they received 17+ HP.

http://www.knfilters.com/dynocharts/63-1561_dyno.pdf
Even with a heat shield I wouldn't consider that a CAI as it's still an open design. The stock system is not like that, it's completely closed in the engine bay. Same with an S&B or Volant intake. IMO the K&N and intakes like it are a short ram intake. Yes they may flow better but aren't always getting as cold of air as the stock intake. If you're building a race truck then that's not an issue. But for a daily driver that's not moving as fast and sitting in traffic quite often a closed design is better.

As far as the horsepower goes, putting aside the fact that it was done by K&N themselves, the pull starts at 2500 rpm. Again, the average guy using his truck as a daily driver isn't getting into that power range very often. At 1500-2000 rpm where the majority of guys are running their trucks 95% of the time there isn't going to be any gain.

While I don't disagree that air flow and getting as much of it as possible is a good thing, I don't want there to be any misconceptions that guys are gaining 17hp (or whatever the dyno sheet says) from idle all the way through the power range. It's not like that...
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