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post #11 of 24 (permalink) Old 11-03-2015, 07:30 AM
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I kind of figure if there was a way to increase HP/performance, maintain mpg standards (as required by the EPA), and provide required air filtration quality/protection then FCA would have them on all their Cherokees.
I do not think the install unit cost would be much more than what they have now. Even if a bit more what's that going to add to the total cost.
I would guess that there is little to no benefit for most drivers. Also I would have to question the protection issue on an exposed filter. That protection issue is water/moisture. In the unlikely event of water getting into the air flow, would not be good for the engine. With an exposed filter the likely hood increases. I also believe this filter mounts toward the front and a bit lower than the OEM filter. That alone would increase the water issue.
But again that is my view point and anyone is free to install one if they choose.

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post #12 of 24 (permalink) Old 11-03-2015, 09:04 AM
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Quote:
Originally Posted by Jeepster1 View Post
I kind of figure if there was a way to increase HP/performance, maintain mpg standards (as required by the EPA), and provide required air filtration quality/protection then FCA would have them on all their Cherokees.
I do not think the install unit cost would be much more than what they have now. Even if a bit more what's that going to add to the total cost.
I would guess that there is little to no benefit for most drivers. Also I would have to question the protection issue on an exposed filter. That protection issue is water/moisture. In the unlikely event of water getting into the air flow, would not be good for the engine. With an exposed filter the likely hood increases. I also believe this filter mounts toward the front and a bit lower than the OEM filter. That alone would increase the water issue.
But again that is my view point and anyone is free to install one if they choose.
AFE intake gets you more fuel economy, the reason FCA doesn't put a better intake in, its louder (people dont' like that) and its the reason why most car companies put **** tires on from the factory, it costs more money to put better quality tires on, and they want to make money. It really comes down to cost and not that it's "better for the vehicle"

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post #13 of 24 (permalink) Old 11-03-2015, 09:13 AM
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With a cone filter, water is only an issue, assuming the filter element is of a good quality, if the entire filter is submerged in it. Then it will be ingested by the engine. Just getting wet is a non-issue. I've had cone filters on my 350Z and Subaru STi, both of which sit significantly lower than the Cherokee, and they've gotten wet before, with 0 problems. I currently have the 77 series K&N intake on my TH. It came with the car when I bought it used, and have had no problems with that to date. As far as gains in performance... 7hp is trivial, imo. those numbers really won't be noticed by the driver.

http://www.knfilters.com/search/prod...prod=77-1569KS

Last edited by robie_one; 11-03-2015 at 10:21 AM.
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post #14 of 24 (permalink) Old 11-03-2015, 01:51 PM
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Originally Posted by Tyler-98-W68 View Post
AFE intake gets you more fuel economy, the reason FCA doesn't put a better intake in, its louder (people dont' like that) and its the reason why most car companies put **** tires on from the factory, it costs more money to put better quality tires on, and they want to make money. It really comes down to cost and not that it's "better for the vehicle"
That's a good point. In real world driving what kind of increase am I looking at.
Say if I am getting 19.0 around town/ 30.0 on the highway on average putting this unit on will add how much?
Also the increase in mpg is probably due to the increase air flow allowed by the filter. That is assuming that the filter, filters at or better than OEM standards.
Anything less could present issues under warranty I would guess.
The noise issue for me is a non issue if it produces mpg and power as stated.
Also if the auto maker could achieve even 1 mpg out of this filter the extra cost would be worth it to them.
Now that said I am not trying to be negative on this filter but merely questioning it.
Also the tires on vehicles these days are good quality tires. I do remember many years ago they were not good tires and you would be doing good if you got 20K miles out of them. I do not think over the last 20+ years I have gotten less than 40-50K miles out of OEM tires.
But I do agree that auto makers do look at savings per unit and that is big $'s even if you save $1.
Thanks for the input.

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post #15 of 24 (permalink) Old 11-03-2015, 01:59 PM
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The chart measures horsepower and torque at wide open throttle, when the motor needs the most air and fuel. At normal throttle openings and normal RPMs, you're not gaining a thing, and probably losing power (as the chart displays). The stock intake isn't a restriction at 3,000RPM and part-throttle.

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post #16 of 24 (permalink) Old 11-03-2015, 02:01 PM
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1.5L/100 kms increase in fuel economy all around, can't argue with that, but people will continue to say It doesn't do anything and that's fine. With fuel prices the way there are here in SK, intake gets paid off in about 20000kms, but lets all say it doesn't work =)

My Compass with a K&N intake is 1.5/2L per 100kms better as well, but that doesn't matter either.

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post #17 of 24 (permalink) Old 11-03-2015, 02:11 PM
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Quote:
Originally Posted by Tyler-98-W68 View Post
1.5L/100 kms increase in fuel economy all around, can't argue with that, but people will continue to say It doesn't do anything and that's fine. With fuel prices the way there are here in SK, intake gets paid off in about 20000kms, but lets all say it doesn't work =)

My Compass with a K&N intake is 1.5/2L per 100kms better as well, but that doesn't matter either.

Not calling you a liar, but that's pretty substantial for just an air filter.

The only way that intake can increase your mileage is by leaning out the mixture. By adding more air than the ECM can compensate for, the mixture leans beyond parameters. Lean enough to burn a valve or piston? Probably not, but still.

Your Jeep, your money, your risk.

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post #18 of 24 (permalink) Old 11-03-2015, 02:15 PM
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Originally Posted by '05Train View Post
Not calling you a liar, but that's pretty substantial for just an air filter.

The only way that intake can increase your mileage is by leaning out the mixture. By adding more air than the ECM can compensate for, the mixture leans beyond parameters. Lean enough to burn a valve or piston? Probably not, but still.

Your Jeep, your money, your risk.
My Compass has the full K&N Intake system, not just the filter. I will agree a filter alone will most likely not cause any increase in mileage.

2016 Cherokee Trailhawk V6
Rhino
AFE Intake
Flowmaster Super 10 Muffler
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245/70/70 Falken Wildpweak AT3/W
Trailer Tow
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2014 Cherokee Limited V6 ADII (Wife's)
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post #19 of 24 (permalink) Old 11-03-2015, 02:38 PM
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Originally Posted by Tyler-98-W68 View Post
My Compass has the full K&N Intake system, not just the filter. I will agree a filter alone will most likely not cause any increase in mileage.

Neither will the "full system". The only way possible is by leaning the mixture beyond the ECM's range.

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post #20 of 24 (permalink) Old 11-03-2015, 02:41 PM
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OK so then can someone please explain to me why my mileage went up AFTER my intake..............it didn't go down and it didn't stay the same.........so something must have happened. Probably magic

2016 Cherokee Trailhawk V6
Rhino
AFE Intake
Flowmaster Super 10 Muffler
Northstar Deepcycle AGM Battery
Noco Onboard Charger
245/70/70 Falken Wildpweak AT3/W
Trailer Tow
Sunroof
Nav & 9 Amplified Speakers

2014 Cherokee Limited V6 ADII (Wife's)
White
RPM Motorsports Torque Tube
TH Wheels
245/65/17 Falken Wildpeak AT3/W
Trailer Tow
Luxury Package
Technology Package
Sunroof
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