I did the math..

[davelobi]

Well elhigh, I hope I am too conservative and the next numbers come in good. I've only logged 3 tanks with my vibe and the first two were short ones to get a baseline on the board to compare to. Maybe I should have driven like the average dummy civilian and got their real world numbers so I could show much larger gains but I just can't. I have gone the right direction with every tank so far. With no electronics or aba testing I just have to watch my trend. I could show a slight loss with a poor tank even with a new mod that actually helped due to traffic or other circumstances.
Time will tell I guess

[MetroMPG]

Originally Posted by elhigh

I thought the general consensus here was that an airdam was good for 2-5%;

Just an FYI, the ~3 inch airdam I tried out on the 2014 Mirage didn't appear to be in that league. http://ecomodder.com/forum/showthrea...ini-29182.html

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davelobi, if you want your mods to pay for themselves faster, there's a simpler solution: modify a less efficient car.

[niky]

At which point, it'd be more cost-effective to trade it in for a more efficeint car...

I'm actually glad I picked the Toyota Yaris sedan for my experiments after I saw your Mirage results... I wouldn't have gotten anything significant from what I did...

[cRiPpLe_rOoStEr]

Originally Posted by niky

I picked the Toyota Yaris sedan for my experiments

Didn't you have an Isuzu Crosswind?

[cowmeat]

I just did the math on the Kammback I added, and I'll have to drive the Black Widow another 26,000 miles to break even
It was an impulse buy, but I already forgave myself cause it looks way cool!

2.7 extra mpg over 58 avg (if the Kammback did that) = .046% increase in mpg
70 bucks cost of Kammback divided by 3.50 avg price per gallon = 20 gallons cost
20 gallons divided by .046 increase in mpg = 434 gallons to break even
434 gallons X 60.7 mpg = 26,344 miles to break even

Be careful what you spend on your mods, people . . . .some of them only sound like a good idea, but on paper, they don't really add up! That mod was only 70 bucks, and it will take over two years to recoup the cost, if my car lasts that long*

*sorry, forgot to add that my math does NOT factor in either coolness factor or bragging rights, which are very tangible though hard to put a dollar amount to . . .would I have bought that Kammback knowing the math ahead of time? Hell yes I would have!

[niky]

Originally Posted by cRiPpLe_rOoStEr

Didn't you have an Isuzu Crosswind?

I still do. But I had to tie the article in to a fairly new car to get readers interested. Nobody's going to read about my old hooptie...

[aerohead]

Originally Posted by Old Tele man

I did the Math.......and the Math won!

As sung to the music of "I fought the law,and the law won."

[drainoil]

Originally Posted by aerohead

As sung to the music of "I fought the law,and the law won."

Lol