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-   -   Airdam made of lawn edging (https://ecomodder.com/forum/showthread.php/airdam-made-lawn-edging-17399.html)

Frank Lee 05-15-2011 11:19 PM

Airdam made of lawn edging
 
... it's gonna look pretty good! It just goes low enough to cover the lowest part: the front differential. Couldn't have picked a better height for that edging. Quick and easy to make too. I'm thinking of attaching it with spring-steel clips- no drilling, and if push comes to shove, hopefully it would fall off before breaking anything.

http://i146.photobucket.com/albums/r...dam003-1-1.jpg

http://i146.photobucket.com/albums/r...irdam002-1.jpg

http://i146.photobucket.com/albums/r...irdam001-1.jpg

Now to see if the fuel logs detect anything.

P.S. Had to pull the grille block out when towing the other day- she was getting hot.

Rusty Marina 05-16-2011 12:39 AM

Little bit of Redneck engineering

tugboat 05-16-2011 05:26 AM

Anything reinforcing the lower edge in the middle and corners?

JasonG 05-16-2011 07:55 AM

Looks good Frank.
Nothing against the blue swirly plate, but pulling it might create less turbulance.

piers.singer 05-16-2011 08:33 AM

Very tidy, Frank. You can hardly tell that it's RNE, haha.

Christ 05-16-2011 09:09 AM

Quote:

Originally Posted by JasonG (Post 238718)
Looks good Frank.
Nothing against the blue swirly plate, but pulling it might create less turbulance.

fairly sure it's required by law...

Christ 05-16-2011 09:09 AM

That is a very nice example of F series, btw, Frank.

Frank Lee 05-16-2011 01:42 PM

Quote:

Originally Posted by tugboat (Post 238711)
Anything reinforcing the lower edge in the middle and corners?

Yes- the shape of the edging itself. It has a tubular x-section on the bottom edge that gives it more than enough rigidity, yet it's quite a light piece. :thumbup:

Frank Lee 05-16-2011 01:43 PM

Quote:

Originally Posted by JasonG (Post 238718)
Looks good Frank.
Nothing against the blue swirly plate, but pulling it might create less turbulance.

That is a ram implosion plate, good for 3 mpg! :eek:

Frank Lee 05-16-2011 01:47 PM

Quote:

Originally Posted by Christ (Post 238731)
That is a very nice example of F series, btw, Frank.

Thanks. I put the stickers on myself. You are looking at the one and only vehicle I've ever bought new. I've mostly babied it but it does bear the scars of a working truck. Well, mostly it bears the scars of being in the Rust Belt. :mad: By knowing to wash inside above the rear wheel wells, though, I've been able to keep that common rust area from going bad.

The edging is formable with a heat gun. I even finished the cut edges on each end by forming them to match the stock dam it's attached to.

Christ 05-16-2011 01:50 PM

I believe I remember talking to you about this truck before. You chose the v8 4x4 bc the EPA ratings were so close or were the same, but the v8 had more usable power, right?

Frank Lee 05-16-2011 01:57 PM

Yes. IIRC V8 was actually 1 point higher than I6; with the intended pulling and towing- some of it off-road- I figured I should have 4x4; and compared to a V6 Ranger or other small truck it wasn't much of an mpg hit at all according to the specs AND purchase price was pretty close to the same too. It ended up being used for loads too big for a smaller truck anyway. Of course most of the time a smaller truck would be more suitable because I don't have the huge loads 100% of the time. But it's paid for.

skyl4rk 05-17-2011 07:04 AM

zip tie some foam pipe insulation to the bottom of that street sweeper

call it the racoon (roadkill) slapper

aerohead 05-17-2011 05:23 PM

Airdam
 
Frank,it looks O.E.M.! Very few will ever realize that it's not.Sweet!
PS On my way to Pep Boys to scope out ram implosion devices.The chrome muffler bearing finaly rusted,dizzly-pin is bent,and I can't seem to un-clog the phenobulator :thumbup:

Christ 05-17-2011 05:28 PM

Instead of buying all those parts new, buy and retrofit a Chrysler Turbo Encabulator.

Much better product, and some added efficiency as well. :thumbup:

Frank Lee 05-17-2011 05:31 PM

I have wunna those Chrysler thingies hanging in the garage! I should put it on and get 30 mpg! (combined with the ram-implosion plate... and the wipers and antenna delete)

California98Civic 07-01-2011 10:22 PM

Emulation
 
1 Attachment(s)
Lawn edging airdam on a 1998 Honda Civic. I scraped a dip in town today, no sweat.

kach22i 07-01-2011 10:56 PM

Quote:

Originally Posted by Frank Lee (Post 238683)
I'm thinking of attaching it with spring-steel clips- no drilling

Dude, great minds think alike - I did the same thing two years ago on my S-10. Picked up 3-mph hwy.

Link:
Chin Spolier - fast/easy/cheap/effective - Pelican Parts Technical BBS
http://i184.photobucket.com/albums/x...20Up/CHIN4.jpg

I did hit a snow drift (spun) this last winter when I went on to a side street and touched the gas coming out of the turn. I was trying to save gas keeping it out of 4WD, not always a smart thing to do. I now have a crack in the plastic chin valance above my home garden chin spoiler (in one corner). I still have to fix it, helps that the truck is all black, I forget it's even cracked.

Kodak 07-01-2011 11:15 PM

Quote:

Originally Posted by kach22i (Post 247978)
Dude, great minds think alike - I did the same thing two years ago on my S-10. Picked up 3-mph hwy.

Hey, I dig it - nice job.

I read through a bit of that thread. Looks like your gains were made at speeds around 70. Did you measure the mpg gains at any lower speeds - like 45 or 50?

kach22i 07-02-2011 11:47 AM

Quote:

Originally Posted by Kodak (Post 247983)
lower speeds - like 45 or 50?

No extended no-stop driving at those speeds, so no. City gas mileage still sucks.

Based on the rear Gurney Flap spoiler experiment I did, I'd say anything above 30 mph aerodynamics will come into play.

The main problem I have with city driving with this truck is the 4.3L V6 has so much more torque than the 1.6L Geo Tracker I drove for 20 years that I become a lead foot and start having too much fun. As you can guess, having fun in even a compact truck is an expensive thing fuel wise.

joejoe317 12-07-2011 10:54 PM

wow this is nice!

Ultra-Orange 12-08-2011 01:06 AM

no fuzzy dice? Don't make me pull your redneck license!

love the airdam by the way

winkosmosis 12-08-2011 03:40 AM

Quote:

Originally Posted by kach22i (Post 247978)
Dude, great minds think alike - I did the same thing two years ago on my S-10. Picked up 3-mph hwy.

Link:
Chin Spolier - fast/easy/cheap/effective - Pelican Parts Technical BBS
http://i184.photobucket.com/albums/x...20Up/CHIN4.jpg

I did hit a snow drift (spun) this last winter when I went on to a side street and touched the gas coming out of the turn. I was trying to save gas keeping it out of 4WD, not always a smart thing to do. I now have a crack in the plastic chin valance above my home garden chin spoiler (in one corner). I still have to fix it, helps that the truck is all black, I forget it's even cracked.

2WD instead of 4WD doesn't save gas. All the same drivetrain parts are spinning, except it's the road spinning them.

Sven7 12-08-2011 04:30 AM

Quote:

Originally Posted by winkosmosis (Post 273649)
2WD instead of 4WD doesn't save gas. All the same drivetrain parts are spinning, except it's the road spinning them.

If this were true, why would companies even bother with optional 4WD? Why not just make all their trucks permanent 4X4's?

kach22i 12-08-2011 07:37 AM

Quote:

Originally Posted by winkosmosis (Post 273649)
2WD instead of 4WD doesn't save gas. All the same drivetrain parts are spinning, except it's the road spinning them.

That is a nice theory, but in real world practice (on my truck) I can tell you that 4WD eats a very noticeable amount more of gas.

Off the top of my head, I lose about 3 mpg in 4WD.

When your are only getting 18 mpg hwy, and 13 mpg city this can add up quickly.

Lets say I average 15 mpg half/half, 12 mpg is way too low for me.

winkosmosis 12-08-2011 01:48 PM

Quote:

Originally Posted by Sven7 (Post 273650)
If this were true, why would companies even bother with optional 4WD? Why not just make all their trucks permanent 4X4's?

The trucks with part time 4WD usually have a 4WD mode where the front and rear axles are locked together. You should only use it on loose surfaces, not on dry, wet, or icy roads.

winkosmosis 12-08-2011 01:48 PM

Quote:

Originally Posted by kach22i (Post 273662)
That is a nice theory, but in real world practice (on my truck) I can tell you that 4WD eats a very noticeable amount more of gas.

Off the top of my head, I lose about 3 mpg in 4WD.

When your are only getting 18 mpg hwy, and 13 mpg city this can add up quickly.

Lets say I average 15 mpg half/half, 12 mpg is way too low for me.


Is it because your front and rear axles are locked together and scrubbing during turning?

Frank Lee 12-08-2011 01:54 PM

The 4WD stuff does add weight and usually a taller, dirtier aero profile. And even in 2WD mode there's more drivetrain stuff spinning even if it's only in the transfer case- a larger drivetrain loss.

winkosmosis 12-08-2011 01:59 PM

Quote:

Originally Posted by Frank Lee (Post 273733)
The 4WD stuff does add weight and usually a taller, dirtier aero profile. And even in 2WD mode there's more drivetrain stuff spinning even if it's only in the transfer case- a larger drivetrain loss.

But it's not just the transfer case. The front axles and driveshaft still spin in 2WD, it's just that the tires are turning them instead of the engine.

kach22i 12-08-2011 02:00 PM

Quote:

Originally Posted by winkosmosis (Post 273729)
The trucks with part time 4WD usually have a 4WD mode where the front and rear axles are locked together. You should only use it on loose surfaces, not on dry, wet, or icy roads.

People use 4WD in the snow and wet roads all the time, which is why such trucks exist in the marketplace. To say never use it unless on loose surfaces may be correct, but not realistic in my opinion.

I limit my 4WD use as much as possible, two sand tubes over the rear axle helps.

My multiple aerodynamic improvements; front chin spoiler, roof cab wing, and rear spoiler all help to keep her on the road at speed.

Frank Lee 12-08-2011 02:02 PM

Quote:

Originally Posted by winkosmosis (Post 273735)
But it's not just the transfer case. The front axles and driveshaft still spin in 2WD, it's just that the tires are turning them instead of the engine.

Not on my 4WD, or any of the 4WDs I'm familiar with. That is the reason manual, dashboard, or automatic hubs exist you see.

winkosmosis 12-08-2011 02:02 PM

Quote:

Originally Posted by kach22i (Post 273736)
People use 4WD in the snow and wet roads all the time, which is why such trucks exist in the marketplace. To say never use it unless on loose surfaces may be correct, but not realistic in my opinion.

I limit my 4WD use as much as possible, two sand tubes over the rear axle helps.

My multiple aerodynamic improvements; front chin spoiler, roof cab wing, and rear spoiler all help to keep her on the road at speed.

On top of snow it's fine

winkosmosis 12-08-2011 02:04 PM

Quote:

Originally Posted by Frank Lee (Post 273738)
Not on my 4WD, or any of the 4WDs I'm familiar with.

It's all spinning unless you have manual disconnect hubs... which you might given the age of your truck.

kach22i 12-08-2011 02:05 PM

Quote:

Originally Posted by winkosmosis (Post 273741)
On top of snow it's fine

I agree.

I also go for safety first, and that sometimes includes 4WD on wet roads near freezing, which is what a typical Michigan winter is composed of. Slush is the state's real major product.

Frank Lee 12-08-2011 02:09 PM

Quote:

Originally Posted by winkosmosis (Post 273742)
It's all spinning unless you have manual disconnect hubs... which you might given the age of your truck.

Don't confuse 4WD with AWD. The road is never supposed to be spinning the unpowered axles regardless. Only time that happens is when the operator forgets to unlock the hubs, or does so on purpose for the short term.

winkosmosis 12-08-2011 02:13 PM

Quote:

Originally Posted by Frank Lee (Post 273746)
Don't confuse 4WD with AWD. The road is never supposed to be spinning the unpowered axles regardless. Only time that happens is when the operator forgets to unlock the hubs, or does so on purpose for the short term.

No modern 4WD trucks have manual hubs though AFAIK. My 1999 Cherokee definitely doesn't.

Frank Lee 12-08-2011 02:22 PM

Quote:

The road is never supposed to be spinning the unpowered axles regardless.
If there is no front hub disconnection equipment the vehicle is AWD and it never has 2WD mode.

Frank Lee 12-08-2011 02:26 PM

Quote:

Originally Posted by winkosmosis (Post 273649)
2WD instead of 4WD doesn't save gas. All the same drivetrain parts are spinning, except it's the road spinning them.

And running in 2WD definitely saves gas!

kach22i 12-08-2011 02:34 PM

Quote:

Originally Posted by Frank Lee (Post 273751)
And running in 2WD definitely saves gas!

It sure does.

66sprint6 12-08-2011 02:35 PM

Runnin 4wd is perfectly fine even on dry ground so long as you dont have a locker up front, with the only issue being efficiency and having to stay under a certain MPH. I run around in 4WD all day long when its icy out, thats what its there for! If I hadnt bought the Escort I would be all over the chin spoiler idea, see if it could help my dismal MPG numbers. Now Im only drive it when I need it so Ill leave it be.
Matt


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