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  #49  
Old 09-28-2015, 11:49 AM
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Originally Posted by Raptor View Post

Actually MOFSTEEL unlike the many K&N fanbois that post here is right on the money about the K&N CAI.

It will not increase performance by itself without other mods. AND your OEM engine management computer will negate the effects of the slightly increased airflow after a couple of weeks. The OEM tune will adjust the fuel and ignition curves back to OEM parameters as designed.

To realize any noticeable gains w/a quality CAI...... improved exhaust flow to go along with that improved intake flow must be coupled w/ a good tuner to change fuel and ignition curves to suit the increased airflow.

Lets also not forget K&N's oiled cotton gauze CAI filters while they do
increase airflow, also allow more dirt and fine particulate into your engine
than an OEM paper filter or an aftermarket synthetic media filter.

This has all been covered before;

Love my new K&N 63 Series

K&N Series 63 intake impressions
I know this already

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  #50  
Old 09-29-2015, 11:34 AM
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Re: Mopar CAI vs. K&N

I will say it is odd that OEM's have pushed back from MAF sensors. I can only suspect with greater computing power/speed of newer ECM's, the use of wide-band O2 sensors coupled with more sophisticated intake manifold flow modeling can the intake airflow be calculated using the MAP, IAT sensors etc. However, even on speed density fuel management systems in the late 80's, an open element filter and/or CAI made power but caused the engines to run a bit leaner.
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  #51  
Old 09-29-2015, 11:57 AM
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Originally Posted by midsouthduckhunter View Post
I will say it is odd that OEM's have pushed back from MAF sensors. I can only suspect with greater computing power/speed of newer ECM's, the use of wide-band O2 sensors coupled with more sophisticated intake manifold flow modeling can the intake airflow be calculated using the MAP, IAT sensors etc. However, even on speed density fuel management systems in the late 80's, an open element filter and/or CAI made power but caused the engines to run a bit leaner.
Chrysler today still uses speed density as its method of metering. Its a little trickier to tune, but oh so much more rewarding when you get it right
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  #52  
Old 10-05-2015, 07:09 AM
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Re: Mopar CAI vs. K&N

Heres a screen shot of the temp difference, cold air my assuploadfromtaptalk1444046928583.jpg
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  #53  
Old 10-05-2015, 08:13 AM
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Re: Mopar CAI vs. K&N

Why yes, I love cold air on my ass'; specially the following morning after eating 25 hot wings. Come on nicjak, 'splain it for us lazy-azzes so we don't have to go back through this thread and figure it out for ourselves.
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  #54  
Old 10-05-2015, 02:11 PM
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Originally Posted by nicjak View Post
Heres a screen shot of the temp difference, cold air my ass
Were you just sitting still? Cuz if I sit still my temps skyrocket too. When I'm moving I'm as much as 5 over ambient
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Old 10-05-2015, 03:04 PM
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Re: Mopar CAI vs. K&N

That was taken sitting on 110kph when you stop the inlet temps rise even more. Btw this is with a kn cai.
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Old 10-05-2015, 03:05 PM
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Re: Mopar CAI vs. K&N

I would be interested in what the temp difference is with the oem intake
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Old 10-05-2015, 05:02 PM
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Originally Posted by nicjak View Post
That was taken sitting on 110kph when you stop the inlet temps rise even more. Btw this is with a kn cai.
You gotta remember even the k&n is not a true cold air. Its a short ram style intake. I've got an injin on mine. If I still had the factory intake id do some testing
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Old 10-05-2015, 05:14 PM
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Re: Mopar CAI vs. K&N

correct mate none are cold air, they only allow freer breathing and more surface area filtration.
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  #59  
Old 10-05-2015, 05:28 PM
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Originally Posted by nicjak View Post
correct mate none are cold air, they only allow freer breathing and more surface area filtration.
That and are a little less restricted. There are very few true CAI out there for the wk and they mostly apply to the srt. I do have a project planned to modify my injin into a true CAI with a box and pick up tube down in the bumper but not so low as to pick up water
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Old 10-13-2015, 07:30 PM
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Re: Mopar CAI vs. K&N

I installed the new K&N Series 63. Outside the cabin, there is a little whistling and chuffing sound, but one only hears a bit more "vroom" "vroom" in the cabin when accelerating. No drone when cruising or highway speed. I was really concerned about getting that loud turbo whine, but because of the rubber gasket around the top of the shield touching or getting really close to the hood, all the noise is directed out.

The shield incorporates the cold air snorkel out of the OEM air box so the the intake won't just pull in hot engine air; it will actually pull in colder exterior air. The installation took me an hour, but I was taking my time since I don't know my way around the engine bay yet. Their instructions are very good while the craftsmanship & fitment is typical, durable K&N. You can see that K&N also included a 2' section of intercooler piping with this kit. I looked at the existing pipe section and that big cylinder over the radiator is a baffle. It looks like resonator exhaust pipe inside.

I want to say the truck pulls harder over 100 and adds economy at upper speeds. I drive about 31mi one way to work and much is highway where I can really get on when I'm running late, which was the case for the last 2 days. I can say the cruise was set 80-85 for over half the trip while the rpm's were around 2200 for that speed. I also had a few 30-60 sec bursts from 90-105 when the traffic opened up in front of me. The mpg started out at 25.9 at the house and ended up at 26.7 mpg by the time I got to the office. I've had the truck 6 months and it has never given me economy like that when I drive at that speed. It would be high 24's or low 25's - never over 26, never. In summary, I'm getting some power and expect it will be felt more as I drive over 2000 rpm. From an ROI standpoint, I need to run an additional 48,564 miles considering a 2mpg gain & diesel at $2.5/gal to pay it off, so this was a mod with a 2.5 year term payoff.
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File Type: jpg 2014 JCG Diesel K&N CAI 2.jpg (223.0 KB, 49 views)
File Type: jpg 2014 JCG Diesel K&N CAI 4.jpg (185.5 KB, 46 views)
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