Air intake question.
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Posting Guru
Joined: Jul 2012
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From: Deer Park, TX
Air intake question.
I have been reading all night and been wondering what setup would be better for fuel economy. I have a 2002 and I'm looking at Airaid kit, K&N kit and the 6637. Everything is stock and later I will upgrade the exhaust and get a tuner. But still have to research that.
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Joined: Jul 2012
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From: Glen Rose, Texas
I run the K&N on mine. Had the 6637 and theres really not much difference between the two to me except for turbo whistle. I went back to the K&N for the simple look of it. To me and this is my personal preferance, the K&N looks much cleaner and nicer. The 6637 just looked to bulky and shoved in there for my taste.
But asking that question on forums usually gets the entire K&N sucks, and will destroy your turbo and motor eventually. Which having done them both, and listened to all the back and forth on them, the K&N most are referring to are the drop in filters because they dont seal that good.
Thats all I got.
But asking that question on forums usually gets the entire K&N sucks, and will destroy your turbo and motor eventually. Which having done them both, and listened to all the back and forth on them, the K&N most are referring to are the drop in filters because they dont seal that good.
Thats all I got.
9 ECHO 1
Joined: Aug 2009
Posts: 12,467
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From: Missouri
Well, what you need to do is decide "Do I want to buy a whole CAI kit?"
If you dont, avoid K&N drop in filters. The K&N CAI will be fine, but youre paying a lot for very little return. The best CAI kit for these trucks in my opinion are the AFE kits. S&B is pretty good too, but they can suck in hot engine air, which kind of defeats the purpose of a CAI.
6637 has on simple advantage. Simplify. They are cheap and easy. While no where near the best filter on the market, what with lower CFM ratings than stock, it is still a great option for most people.
For me the AIS is the filter of choice for many reasons.
In all reality if you are using the truck for normal purposes, an OEM paper filter will be just fine. If you want to upgrade the intake for what ever reason, know that your engine will hardly notice the difference between most of them. Only when you get to extreme power levels or aftermarket turbos do you need to really nit pick about filters.
If you dont, avoid K&N drop in filters. The K&N CAI will be fine, but youre paying a lot for very little return. The best CAI kit for these trucks in my opinion are the AFE kits. S&B is pretty good too, but they can suck in hot engine air, which kind of defeats the purpose of a CAI.
6637 has on simple advantage. Simplify. They are cheap and easy. While no where near the best filter on the market, what with lower CFM ratings than stock, it is still a great option for most people.
For me the AIS is the filter of choice for many reasons.
In all reality if you are using the truck for normal purposes, an OEM paper filter will be just fine. If you want to upgrade the intake for what ever reason, know that your engine will hardly notice the difference between most of them. Only when you get to extreme power levels or aftermarket turbos do you need to really nit pick about filters.
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Joined: Jul 2012
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From: Glen Rose, Texas
I didnt at all. And honestly from stock to whatever you decide, if thats the only thing you have I dont think you will notice anything.
Reading all these post and threads, the only thing I can really find that increases fuel economy is a programmer/chip. And the guys here says its only 2-3 mpg maybe. I could be wrong on the number, my old butt should be in bed asleep instead of looking here. haha.
Reading all these post and threads, the only thing I can really find that increases fuel economy is a programmer/chip. And the guys here says its only 2-3 mpg maybe. I could be wrong on the number, my old butt should be in bed asleep instead of looking here. haha.
9 ECHO 1
Joined: Aug 2009
Posts: 12,467
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From: Missouri
If I have learned one thing here its this:
Never EXPECT a mileage increase from any mods. If you happen to get better mileage enjoy it.
Never EXPECT a mileage increase from any mods. If you happen to get better mileage enjoy it.
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Posting Guru
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From: Deer Park, TX
I just heard that the system stock is really restrictive and if you open it up that you could get better economy out of it.
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9 ECHO 1
Joined: Aug 2009
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From: Missouri
The stock system is rated at between 640-700 depending on the brand of filter. I cant find the OEM one right now but Napa Gold is 640.
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Joined: Jan 2011
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From: Puget Sound
Well... since you aren't putting your money there and you plan to eventually chip - what I've learned:
Make sure truck is running 100%. My worst mileage on my stock-looking truck was 16 MPG. I've modded, chipped, and repaired. The repairs gave me the fuel economy gains and the mods/chip gave me power gains with no impact on MPG - unless my right foot gets an itch. I had pre-turbo exhaust leaks, a bad MAP sensor, my HPOP was marginal, and my wastegate had a funky device on it that I removed. I still have old/tired injectors, but I haven't seen anything less than 18 MPG since April of this year (HPOP replaced) and I'm sneaking up on 20 highway. I do have the Ford AIS and I do see an improvement on stock performance with the 4" exhaust. If you ever get to the point where you are chip shopping, stop and get the gauges first. You need to know how your engine is performing anyway to make sure it's 100% and the basic gauges will help with this. Once you are comfortable that the engine is really 100% - The chip is yours, Skipper.
Make sure truck is running 100%. My worst mileage on my stock-looking truck was 16 MPG. I've modded, chipped, and repaired. The repairs gave me the fuel economy gains and the mods/chip gave me power gains with no impact on MPG - unless my right foot gets an itch. I had pre-turbo exhaust leaks, a bad MAP sensor, my HPOP was marginal, and my wastegate had a funky device on it that I removed. I still have old/tired injectors, but I haven't seen anything less than 18 MPG since April of this year (HPOP replaced) and I'm sneaking up on 20 highway. I do have the Ford AIS and I do see an improvement on stock performance with the 4" exhaust. If you ever get to the point where you are chip shopping, stop and get the gauges first. You need to know how your engine is performing anyway to make sure it's 100% and the basic gauges will help with this. Once you are comfortable that the engine is really 100% - The chip is yours, Skipper.
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From: Deer Park, TX
Well the previous owner claimed 15.8 city and 21 hwy by the guess meter. Is that what most guess meters are showing for normal running trucks. I still want to check that rear pressure tube.
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Joined: Feb 2007
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From: Sterling Heights,Mi
Guess meter, I like that, I always thought of them as wishfull thinking..
My experiences for improvements in GPM, and this was the WHOLE reason I started modding, was the only thing that made any difference in my MPG was the 4" exhaust, and it was only a .5 gain after several tanks.
Right now I have the 60E tune from DP, and my first run with her was about a .5 mile per gallon better, but I havent been on the expressway enough to continue to document this. Hell, I got a .5 GPM better when I put the BTS in, but that only happend compared from the ride there, to the ride back. I had not seen anything constant with that.
Like Tugly said earlier, I have done a MESS of things to my truck, and got more power, but really havent seen anything in the matter of MPG gains.
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Joined: Jan 2011
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From: Puget Sound