Does modifying my airbox improve mpg? - Ranger-Forums - The Ultimate Ford Ranger Resource


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Old 02-16-2012
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Does modifying my airbox improve mpg?

I understand that many people are removing the snorkel and sometimes even widening the hole in the airbox. But widening everything seems like it would draw air from under the hood and not outside. does anyone have experience with this?

The reason I ask, is that my ranger is my dd, and I actually have to have a truck for work. Im currently getting 13.8mpg. I want to drive it until the wheels fall off and/or actually need a bigger truck. But I'm a bit concerned about gas going up. I've already ordered a catback system, coming in the mail. and im open to being a better driver/ down shifting less/ and possibly using mid-grade...im going to have to do a cost-per-mile evaluation.

Last edited by blue; 02-16-2012 at 04:34 PM.
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Old 02-16-2012
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either way you will be sucking in the same air. the snorkel is entirely inside the airbox not pulling air from another source. i noticed no gains in power or fuel mileage at all when i removed my snorkel
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Old 02-16-2012
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It will make more noise and you will think you have more power and push the gas harder to prove it AND your MPG will drop… lol.
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Old 02-16-2012
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Quote:
Originally Posted by Scrambler82 View Post
It will make more noise and you will think you have more power and push the gas harder to prove it AND your MPG will dropů lol.
Like a intake
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Old 02-16-2012
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thanks for the feedback. I tried researching and couldn't get a difinitive answer, one way or another. definitely dont want to make the problem worse
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Old 02-16-2012
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What problem?
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Old 02-16-2012
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gas mileage is a constant problem haha. especially driving through the mountains all the time.
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Old 02-16-2012
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I had to look up your profile.It would be nice if you could post the specs/mods on your truck in your sig.

Dump the 10.50 tires and go stock width. Your mpg will go up .That extra weight and road resistance is not helping.
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Old 02-16-2012
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its the Fx4 Level II... 10.5s are stock...but i hear what you're saying Ken. thanks
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Old 02-16-2012
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14-16 city is about the best you can hope for, flat highway maybe 20.


If you actually need a truck then the ranger is to small and the mileage difference isn't significant. I have done worked in a v10 super duty before and it got about the same mileage as my 4.0 which is insane. My 4.6 CVPI gets better mileage all around, and its heavier.
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Old 02-16-2012
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yeah about 65mph i can get about 18-19... but since i took this job in the middle of nowhere, all the freeways are 70-75 mph. and with the cruise set at those speeds...im filling up all the time. example: spokane is about 135 miles away; it takes 2hrs and half a tank to get there:(
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Old 02-16-2012
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and I've thought about a different truck. Ive just never had any problems with rangers and i really like the level II w/ standard transmission. they're pretty sturdy...a truck is a truck for a reason i guess; they aren't built for gas mileage. i was just wondering if i tweaked the airbox, whether i would see any benifits. i appreciate you guys breaking it down for me
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Old 02-16-2012
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If you want gas mileage then go buy a 4cyl beater car and drive that, get 30mpg and keep miles off your ranger.
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Old 02-16-2012
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you might want to look into tonneau cover, I got one and I noticed a difference in mpg i got a little over an extra 1 mpg. Programmers also help with mpg's.
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Old 02-16-2012
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Mile tune on a programmer and you may see a bump, better off checking your tires when you fill up. That will help the most.
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