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Dogman 10-04-2018 07:30 PM

Air dam worth the effort
 
1 Attachment(s)
Hi there, I am wondering how much improvement I will see if I were to do the old lawn edging air dam install under the front of my bumper and skirts along the sides of my 2007 Kia Rondo.
I travel 15-20 min each way to work in a 80 kph zone...and occasional local errands.
I would just be adding to and extending the current 2” lip on the front.
Unless it’s a noticeable difference I really don’t want to tackle it.
Thanks

https://ecomodder.com/forum/attachme...1&d=1538695701

Daox 10-04-2018 08:15 PM

If you're looking for guarantees you're in the wrong place. The effect is always unknown. However, usually an air dam is very simple to install, and their gains are usually pretty good. Our wiki page shows an average of almost 5% increase in fuel economy.

https://ecomodder.com/wiki/Front_air_dam

Dogman 10-04-2018 08:39 PM

Quote:

Originally Posted by Daox (Post 580810)
If you're looking for guarantees you're in the wrong place. The effect is always unknown. However, usually an air dam is very simple to install, and their gains are usually pretty good. Our wiki page shows an average of almost 5% increase in fuel economy.

https://ecomodder.com/wiki/Front_air_dam


Perhaps I will get my Scangauge first...run some baselines then do the airdam project.
Thnx

oil pan 4 10-04-2018 08:54 PM

If you actually keep to 80 kph the air dam effects would be less than if you were doing say 120 or so.
But with gas over $4 a gallon it's probably worth it.

How's the snow there?

Ever consider a block heater to reduce or eliminate warm ups?

Dogman 10-05-2018 09:41 AM

Quote:

Originally Posted by oil pan 4 (Post 580815)
If you actually keep to 80 kph the air dam effects would be less than if you were doing say 120 or so.
But with gas over $4 a gallon it's probably worth it.

How's the snow there?

Ever consider a block heater to reduce or eliminate warm ups?

I usually drive at 90 kph so not to upset everybody behind me.:thumbup:
I do have a block heater that I plan to use this winter.
No snow here yet just outside of Toronto. Likely another month than anything goes.
That being said I will be putting my snow tires on at the end of October...there's another strike against me. :(

oil pan 4 10-05-2018 10:41 AM

As it gets colder maybe start with a partial grill block.
Just remember to identify the transmission if you have one and not cover it up.

Dogman 10-05-2018 01:05 PM

Quote:

Originally Posted by oil pan 4 (Post 580854)
As it gets colder maybe start with a partial grill block.
Just remember to identify the transmission if you have one and not cover it up.

Yes good idea.
The lower opening of the front of car is for the tranny....major overkill IMO considering the size of tranny cooling rad.

freebeard 10-05-2018 04:15 PM

Others have reported that an airdam didn't improve MPG but did improve stability in buffeting crosswinds, like passing or meeting a truck.

mpg_numbers_guy 10-05-2018 04:26 PM

The air dam was among my top three mods for fuel economy, along with increased tire pressure and HX wheel swap.

It would be fairly safe to say that an airdam would improve the fuel economy of an average vehicle by 2%-6%. Results will vary from vehicle to vehicle. Generally speaking, the smoother the underbody of a car is, the smaller the effect from an air dam. If your underbody is completely smooth, an air dam may actually hurt your fuel economy.

Dogman 10-06-2018 09:30 AM

Quote:

Originally Posted by mpg_numbers_guy (Post 580905)
The air dam was among my top three mods for fuel economy, along with increased tire pressure and HX wheel swap.

It would be fairly safe to say that an airdam would improve the fuel economy of an average vehicle by 2%-6%. Results will vary from vehicle to vehicle. Generally speaking, the smoother the underbody of a car is, the smaller the effect from an air dam. If your underbody is completely smooth, an air dam may actually hurt your fuel economy.

If I could get a 6% improvement I’d be very happy.
The underneath of my Rondo is an aerodynamic nightmare IMO.
I will do the lawn edging mod once I set my Scangauge to set an accurate baseline.😉👍
Just need to figure out how to fasten the side skirts....was actually thinking of using the industrial strength Velcro


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