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  #13  
Old 04-15-2010, 09:19 PM
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Re: K&N Cold Air Intake

It fits on the 5.7. All years.
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  #14  
Old 04-16-2010, 09:43 AM
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Re: K&N Cold Air Intake

I have a K & N, and my mileage went up by about 1MPG. The throttle response was also improved. At best though, you're not looking at a whole lot of improvement unless you upgrade the whole intake/ exhaust chain. (CAI, larger diameter Throttle Body, and a Cat Back or similar upgraded exhaust).
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  #15  
Old 04-16-2010, 09:57 AM
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Re: K&N Cold Air Intake

Check my signature. Run the new superchip gas saver tune and you ride will be getting 20+mpg's while maintaining a good amount of performance.
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  #16  
Old 04-16-2010, 12:37 PM
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Re: K&N Cold Air Intake

Quote:
Originally Posted by NorCalWK View Post
Check my signature. Run the new superchip gas saver tune and you ride will be getting 20+mpg's while maintaining a good amount of performance.
Which chip do you recommend, i found this on on a quick search, wonder if its any good?

http://www.performancechipsdirect.co...rand-Cherokee/
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  #17  
Old 04-16-2010, 05:32 PM
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Re: K&N Cold Air Intake

Quote:
Originally Posted by GC///HoLic View Post
Which chip do you recommend, i found this on on a quick search, wonder if its any good?

http://www.performancechipsdirect.co...rand-Cherokee/
Dude hell no... don't ever get that cheap Sh1t!!! Getting a Superchip is the way to go. It's pricey but worth every penny!!! He's the link:

http://airram.com/product.php?catego...7&productid=15

Also before you order for airram get the JG members discount code from the vendors section ok.

Word of advice, if you get cheap crap for your Jeep you jeep turns into cheap crap.
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  #18  
Old 04-16-2010, 06:12 PM
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Re: K&N Cold Air Intake

I bought one from AirRam for my 4.7 05 Laredo. I think it was like 260 something with free shipping? They might have a discount code for the forum? If they do I forgot to use it haha.

Anyway it looks great in the engine bay and takes up a lot less space making the engine easier to work on. I left mine on even when I changed the plugs since it was not in the way (I think the stock has to be removed). It sounds awesome, I put it on a day before my magnaflow and it sounded like I already had an exhaust on the car. The filters last forever and you will see some power gains, I think it would be almost impossible not to see any improvement over the restrictive stock setup with its boxed filter, crimpled intake hose, and resonator. The power may be at higher RPM's but you will see some. I wish I would have had it dynoed before and after. I would suggest getting a Magnaflow muffler it sounds mean with the intake.
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  #19  
Old 04-17-2010, 09:46 PM
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Re: K&N Cold Air Intake

Quote:
Originally Posted by hobbes630 View Post
Hey guys I need your opinion on the K&N Cold Air Intake for an 05 Jeep Grand Cherokee Limited. So I bought the Jeep in November 09 with 69,000 miles on it and now have about 80,000 miles on it so I drive a decent amount. I get about 17 mpg highway (prob cause i go 80mph+) and about 15 mpg or less city driving. I realize I can improve that by driving slower and gentler but we all know thats probably not going to happen. So that being said, I read that the K&N Cold Air Intake helps a little on MPG (1-2+) and horsepower. I have a drop in K&N filter right now and that works pretty well. Do you guys think its worth the $300 it costs for what the full cold air intake gives you? I was hoping some of the guys that installed one could give me their input. Any other guys that have different brands let me know why yours is better

Also, I plan on keeping this Jeep till it dies so what will it do to the life of the engine or any other components? My old 2001 Grand Cherokee has 260,000 miles on it and is still running like a champ. I'm trying to make this one last as long too so any help would be appreciated.

Thanks guys
If your '05 WK 4.7L is like the '08 WK 5.7L HEMI, it already pulls air from a location in front of the radiator support. It is pulling cold air! Some of these aftermarket setups actually pull air from the hot engine compartment. How can that be an improvement? Then they use a metal tube, which is subject to heat soak.

If you want an air cleaner element to be cleanable because you are lazy (like me) and don't want to go to the parts store, OK. If you like the intake noise, that's OK also. As you saw in the K&N graph, the horsepower gains come >3K rpms. I almost never drive there for extended periods, so how are these "improvements" a benefit to me?

Some talk about intake flow restrictions. You are normally driving with your throttle plate almost fully closed. This will create a much larger throtttling loss than the combustion air intake system, which is sized to flow sufficient air volume at redline (WOT).

I would be surprized if you realized a significant improvement in mpg from a different intake system or exhaust. Maybe 1-2.5 mpg overall. Chip could probably help more. [I'm not sure on this one.]

For the $1,000 you'll spend, be sure the "guarantees" are real. Alternatively, just enjoy the mods, the V-8 sounds, and your Jeep in general. $crew the mpg gains.......
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  #20  
Old 04-17-2010, 10:01 PM
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Re: K&N Cold Air Intake

For a HEMI do not go with a Superchips tuner. Diablo Predator FTW.
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  #21  
Old 04-17-2010, 10:08 PM
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Re: K&N Cold Air Intake

Put on my AFE stage 2 today. Sound wise it sounded like sex. :P
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  #22  
Old 04-18-2010, 02:32 PM
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Re: K&N Cold Air Intake

Flowbench results:
*Results as follows at 28" of water:
*oem intake w/oem filter = 799.5 cfm
*oem intake w/K&N drop in = 815.7 cfm
*4" BWoody CAI = 1147.6 cfm
*Flowbench results showed a whopping 348.1 cfm increase over the OEM airbox!!

The only problem with the B Woody, or most any aftermarket CAI is that the maximum airflow that a stock hemi (or even a mildly modified one) is capable of drawing in is less than 700 cfm. Most normal stock vehicles of any kind have a volumetric efficiency (VE) of somewhere between 65-75%. Our 5.7 hemi's at 100% VE would only be able to draw in a maximum of about 700 cfm at 6000 RPM. Only highly modified, forced induction engines are capable of near 100% VE. So, having an intake that's capable of drawing in almost 1150 cfm does you no good. It will however, as most do, make some neat sounds, which many people equate to more power. The stock WK airbox is capable of drawing in about 800 cfm, which is more than adequate for the stock or mildly modified 5.7. The goal should be, draw in the coldest (ambient) air possible and provide the least restriction (turbulance) and heat buildup/transfer between the airbox and the throttle body. On the stock 5.7 airbox you can further increase airflow by removing the drain cup (snaps on) from the bottom of the airbox and sticking a 3 in. tube from it to somewhere behind the grill.

I've got two hemi equipped vehicles (LX and WK) and have built both my own CAI's using LX SRT airboxes. On both I've punched another hole in the front of the box for added airflow potential. On the WK I used the stock LX SRT (4 in. reducing down to 3.25 in.) air tube from the box to the throttle body, but on the LX I built a tapered 4 in. to 3.25 in.), double walled, insulated setup. They work more than adequate at the drags and on the road. IAT is ambient or about 2 degrees lower on the highway. The reason it's lower sometimes is because of where the temp. sensors are located. The IAT is in the airstream in the intake tube and the ambient sensor is between the grill and the radiator, at least on the LX anyway. I've got a screen on my DashHawk that displays both at the same time.
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  #23  
Old 04-20-2010, 09:47 AM
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Re: K&N Cold Air Intake

I grabbed a K & N 77 series for my '06 4.7l. It sounds better, looks pretty, and I feel better response. Mileage didn't go up ( from what I could tell ). I did; however, get a Jetchips stage 1 and saw pretty good gains in pulling power as well fuel mileage. I went from 20 to 23 mpg on highway. For New England driving that's pretty good... I don't think any road here is remotely flat.
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  #24  
Old 04-20-2010, 05:28 PM
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Re: K&N Cold Air Intake

what do you guys think the superchips does for higher millage jeeps? I have over 80,000 miles on my 05 4.7L and was wondering if its worth getting it or not. Does it reduce the life of the engine at all? Im assuming it puts extra stress on the engine and other components if it supposed to give you extra power gains...any thoughts on this? Would any one recommend getting one if I plan on keeping my jeep till 200,000 + miles ?
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