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Modified JK Tech Tech related bulletin board forum regarding subjects such as suspension, tires & wheels, steering, bumpers, skid plates, drive train, cages, on-board air and other useful modifications that will help improve the performance and protection of your Jeep JK Wrangler (Rubicon, Sahara, Unlimited and X) on the trail.

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My new Upgrades.... What do you all think?

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Old 08-25-2010 | 03:42 PM
  #11  
fadeout's Avatar
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Originally Posted by Fermin
I like it! What are those fins on the back of your hard top?
zactly what I was thinking sup with those things?
Old 08-25-2010 | 03:46 PM
  #12  
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Originally Posted by Fermin
I like it! What are those fins on the back of your hard top?
The look like Air Deflectors that some people use on their RVs. First time I have seen them on a Jeep. Supposed to improve aerodynamics and improve fuel economy.

They are called AirTabs.

Last edited by cppower; 08-25-2010 at 03:53 PM.
Old 08-25-2010 | 04:01 PM
  #13  
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Originally Posted by Crasher
What mpg did you have before the lift and tires? I started at 19 stock. After the tires it dropped to 17.8. Then the lift lowered it a little more. The biggest drop was when I regeared to 513s. At 65 mph highway it's around 15.5 with no wind on level ground. Overall average is 14.5. All of my numbers are with the Flashpaq corrections. Many will claim improved economy with gears, but with any thing I have put higher ratio gears into, the mpg went down.

The only things that will improve economy is driving habits and increased tire pressure. Everything else probably won't save enough to pay back what they cost. I learned that the expensive way many years ago. After all, the Jeep is just a square box on wheels trying to move through a sea of air.
19 stock?! I barely got 17 on the highway stock!!
Old 08-25-2010 | 04:04 PM
  #14  
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Originally Posted by fadeout
zactly what I was thinking sup with those things?
X3

I run pretty much your same set up and get around 15 combo w 513s and Flaspaq. Flaspaq improved my MPGs about 1 from just the gears. i didnt notice any change after the gears in terms of milage btw
Old 08-25-2010 | 04:14 PM
  #15  
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Looking good! I would try a Superchip and don't jam the skinny pedal too hard.
Old 08-25-2010 | 04:22 PM
  #16  
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Originally Posted by Fermin
I like it! What are those fins on the back of your hard top?
Those are to keep the wake down on water crossings!
Old 08-25-2010 | 04:53 PM
  #17  
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Originally Posted by JEP THNG
Those are to keep the wake down on water crossings!
Chines
Old 08-25-2010 | 05:40 PM
  #18  
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Nice looking jeep there
Old 08-25-2010 | 07:57 PM
  #19  
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Originally Posted by nicholsmf
/buyairtab.com/"]Air Tabs[/URL]

Never thought I would see them on a Jeep

Airtabs™ are patented, unique wishbone shaped vortex generators designed to increase vehicle aerodynamic performance and fuel economy by reducing aerodynamic pressure drag at two key locations; the tractor-trailer gap and the rear facing surface (the base area) of any commercial or private square backed vehicle or trailer that routinely attains highway speeds. Drag reduction and fuel economy benefits from Airtab® application is not limited to commercial trucking operations. Airtabs™ enhance aerodynamic performance equally well on cube vans, straight trucks, expeditors, SUVs, RVs, buses, horse, toy and utility trailers, faired "bob tail" tractors, flat beds and tankers. The results may vary somewhat with vehicle type but the aerodynamic theory and principles are the same for all.

Airtabs™ are mounted 3 per linear foot, or every 4 inches on center. Take the number of feet to be covered and multiply by 3 to give the number of Airtabs™ required.

Each Airtab® creates two tight swirls of air or vortices that combine to reduce the suction and drag at the rear of vehicles traveling at speeds above approximately 35 mph or 55kmh. Airtabs™ are also effective at the rear roof lines of automobiles that have a rear window slope of greater than 30 degrees.

Airtabs™ offer several safety benefits as well. They improve vehicle stability by altering the airflow at the vehicle's rear. The large random eddies at the rear surface are changed to an array of small vigorous “stream wise" vortices. The majority of users comment immediately on the improved vehicle handling performance, especially in gusty cross wind conditions or when passing (or being passed by) other vehicles. This increases driver safety margins by reducing wandering and sudden adjacent lane incursions. Mirror visibility in rain or snow is also improved as the Airtabs™ help suppress precipitation and spray patterns. Safety is improved through better mirror visibility yielding safer lane changes as well as improving the visibility conditions for other road users. By reducing the suction and aerodynamic drag at the rear of vehicles, the tendency to accumulate snow and road grime at this location is reduced. This helps to improve corporate image and reduce cleaning time and expense. It also enhances safety by keeping conspicuity tape, tail and brake lights cleaner and helps the bottom line by reducing snow and weight build up in winter.
Should have mounted these all over the jeep and bedlined them
Old 08-25-2010 | 07:59 PM
  #20  
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Looks bitchin. Have you thought about fender trimming? That would set that thing off.



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