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Old 09-29-2011, 08:09 AM   #11 (permalink)
tru
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good call on drill and tapping some parts, sadly i hadnt considered that on mine. I recently purchased a tap and die set, might have to use it soon!

I went ahead and added back on the drivers side lower air dam and put a small 2"x1" hole in it to allow some flow to the air filter and have seen more consistent air intake temperatures not exceeding 90' while cruising and a bump in engine temps back around 200. since most of my typical commute is cruising i dont think i will strees the electric fans at stoplights that often. I also was recommended a new route to work that involves more low speed driving at less then a mile difference with considerably less traffic and lights.

The past two tanks since changing the large white air dam havent been as impressive to me as the initial two tanks. i think the new block allows too much air to get trapped and still pass thru the upper grille. I think there will be some lexan in my future.

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Old 10-09-2011, 08:31 PM   #12 (permalink)
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I am about to undertake some changes on my 2011 Focus 4 dr. I have been working on my driving style. I average 31mpg and up to 47 mpg on hwy. The sweet spot seems to be 60-65 mph on the hwy.
Putting eco tires on as soon as they get here. Cut sheet metal for under body seal all looks good only open area near front. Adding vortex generators to brake up air. I hope to get at a consistent 45+ on hwy. Hope to add instant mpg gauge next month.
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Old 10-10-2011, 09:06 AM   #13 (permalink)
tru
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I am about to undertake some changes on my 2011 Focus 4 dr. I have been working on my driving style. I average 31mpg and up to 47 mpg on hwy. The sweet spot seems to be 60-65 mph on the hwy.
Putting eco tires on as soon as they get here. Cut sheet metal for under body seal all looks good only open area near front. Adding vortex generators to brake up air. I hope to get at a consistent 45+ on hwy. Hope to add instant mpg gauge next month.

47 instantaneous on the highway at 60-65? thats very impressive for a stock vehicle
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Old 12-20-2011, 01:13 PM   #14 (permalink)
Smash 100 MPG barrier
 
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What did you use for material for the upper grill guard? It looks really good. I'm looking to do the same to my 07 - but want something very lightweight. Thanks!
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Old 12-20-2011, 08:05 PM   #15 (permalink)
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Red face Front block

I have not done mine yet. However I plan to use sheet aluminum.
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Old 12-21-2011, 09:27 AM   #16 (permalink)
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highcountryexplorer - '86 Nissan 720 KC 4x4 ST with fiberglass cap
90 day: 21.78 mpg (US)

Elroy - '03 Ford Focus ZX3 w/Zetec DOHC engine
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Thats pretty sweet, i crawled under my focus the other day to see how feasible a belly pan was and noticed except for the rear its not "too bad" under the car. I still want to really smooth it out but the rear would probably benefit the most.
I think a front pan gained around 10% in mpg for a Prius?
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Old 03-13-2012, 09:00 AM   #17 (permalink)
tru
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Tested a lawn edge Air dam 2 weeks ago and saw no appreciable gain and possible loss of mpg's at cruise. pics below of lawn edging.






the air dam has been cut to act as a deflector for both the front tires.

Also if you look close on the first pic you will see i taped the holes in my steelies, there was no gain noticed, however my wheels/caps stay clean much longer than they used to
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Old 03-13-2012, 09:02 AM   #18 (permalink)
tru
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this week im experimenting with the rear of the vehicle, i will try and post some updates when i get a chance.
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Old 03-13-2012, 09:02 AM   #19 (permalink)
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question

What did you use to cover the fog lamps? it looks great - can't even tell what is behind the covers - thanks!
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Old 03-13-2012, 09:16 AM   #20 (permalink)
tru
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What did you use to cover the fog lamps? it looks great - can't even tell what is behind the covers - thanks!

thin ABS plastic bent to shape and siliconed to the car, i know silicone isnt the best answer for most people, but i decided it was ok to me for this car.

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