Removing rear spoiler saves 1.5mpg - TCCoA Forums
 
LinkBack Thread Tools
post #1 of 14 (permalink) Old 07-05-2008, 10:58 AM Thread Starter
6th Gear Poster
 
Join Date: Jul 2002
Location: McDonough, Ga.
Posts: 510
Removing rear spoiler saves 1.5mpg

Other than a good place to put the third stop lamp, it seems all the spoiler does is add to looks and reduce MPG. MPG went up approx 1.5mpg after temporarily removing the spoiler to get it painted. I drive 100miles a day to work & average around 70mph and 95% of my drive is sustained speed so my stats are accurate. I did put the spoiler back on the car, just interesting to know that it adds enough drag to cut MPG (and probably no down force). I would hate to see what it would do if I averaged 85mph! Just think, I could save around $161/yr in fuel cost by removing the spoiler, nothing else!
W.Cup is offline  
Sponsored Links
Advertisement
 
post #2 of 14 (permalink) Old 07-05-2008, 12:08 PM
Road warrior extrodinaire

Super Moderator
 
Trunk Monkey's Avatar
 
Join Date: Feb 2006
Location: Home Sweet Home: Charlotte, NC
Posts: 11,731
Garage
Wow! That's interesting. It's amazing how the numbers add up when you calculate it out over the course of a year.

Mods? Yea, I got mods ...
Air silencer delete, warp drive, dilithium crystals, flux capacitor, Slingshot Rubber band power adder, Moonshine & Gas, Leaf Blower Supercharger, Hamster Wheel & Hamster, Energizer Bunny generating 1.21 gigawatts, Mr. FusionŽ Home Energy Reactor, hover conversion and a sextant celestial navigation system (The original GPS)
Best 1/4: 1,320 nanoseconds @ 670,616,629.2 miles per hour

"There isn't that much difference anymore between spacecraft, aircraft and modern automobiles..." - Keith Henry, NASA's Langley Research Center
See a list of my real mods and pictures of my car HERE. The true performance of my car was made possible by the Carolinas Crew Chief, RobertP at Rob's Tire & Auto
Trunk Monkey is offline  
post #3 of 14 (permalink) Old 07-06-2008, 02:38 AM
PostWhore
 
Join Date: Apr 2008
Posts: 1,716
Send a message via Yahoo to 94 Thunderbird XX
Hmmm.....maybe if I swapped out my spoiler for a 3 foot high wing, I could actually pick up the mpg to about 10 better!

Seriously, that kind of info isn't always realized by a lot of people looking to squeeze every last bit of fuel mileage from their ride.

Me? I'm keeping my spoiler simply because I like it there. It adds a little something to the visual appeal. All the other Tbirds I've seen on the road around where I live don't have one, and I always notice that it seems something is missing on them when they don't have it.

I also think that by me not carrying around an extra 100-200 pounds of subwoofer boxes, amps, thick-gauge power wires more than offsets the little bit of aerodynamic drag the spoiler causes.

Delete my account.
94 Thunderbird XX is offline  
post #4 of 14 (permalink) Old 07-06-2008, 02:58 AM
Voice/Data Guru
 
Boston-Bull's Avatar
 
Join Date: Nov 2007
Location: Grapevine TX
Posts: 7,778
yep I like the looks of a spoiler as well. But the bird here still gets 28 or so doing 75 cruise.

2017 Mustang GT 5.0L 2nd gen, cold air box,tune,6 speed auto,RGR 3.31, Magnaflow Tru X-pipe ,GT350RStrips
Gray Mustang Registry # 8582


Boston-Bull is offline  
post #5 of 14 (permalink) Old 07-06-2008, 08:51 AM
PostWhore
 
Mister_T's Avatar
 
Join Date: Dec 2006
Location: Northern Kentucky
Age: 31
Posts: 1,145
I wonder if the SHO spoiler is much different...

I'm Mister_T and I approve this message.
Mister_T is offline  
post #6 of 14 (permalink) Old 07-06-2008, 05:47 PM
5th Gear Poster
 
strung's Avatar
 
Join Date: Dec 2007
Location: so. oregon
Age: 42
Posts: 377
luv my spoiler...mines stock design, but in the two pillar style.

pimp'n aint easy

mods: air silencer delete w/ k&n panel filter, magnaflow di/do tru duals w/all cats removed, sct 92 oct tune by blue oval chips, tokico advanced handling suspension kit
strung is offline  
post #7 of 14 (permalink) Old 07-06-2008, 05:57 PM
Seasoned PostWhore
 
VicRattlehead's Avatar
 
Join Date: Jul 2002
Location: RT66 Raceway Channahon IL
Posts: 6,213
mustang guys have figured it slowes them down about a tenth or 2 in the 1/4 with their spoiler.

CMP Drag Racing
best ET: 12.410 -- best MPH: 107.61
NMRA MM7270 -- NMCA EFI/? ????
Thank you to the CMP Drag Racing team: Tony, Doug, Maryann, Dale, Paul and Chris.

VicRattlehead is offline  
post #8 of 14 (permalink) Old 07-07-2008, 07:26 AM
Johnny Bling Bling
 
93 lx's Avatar
 
Join Date: Jul 2002
Location: Lunenburg, MA
Age: 40
Posts: 3,811
Send a message via AIM to 93 lx
same has been said about the roof rack on my expedition. i never use it, and could take it off, but i don't think it would look right.

2003 Ford Expedition: 5.4L, harley supercharger, 2.93 upper pulley, 4lb lower pulley, c&l plenum, jlp cai, LFP SBTB, FTSP, Magnaflow 3" catback, Eclipse AVN-5510, white face gauges, cobalt c2 boost gauge, ddm hid's, 379 rwhp, 465 rwtq sold 11/3/12

2009 Ford Flex Limited AWD
93 lx is offline  
post #9 of 14 (permalink) Old 07-07-2008, 09:16 PM
Like Titles Matter
Moderator
 
kdanner's Avatar
 
Join Date: Nov 2002
Location: Austin, TX Ya'll
Age: 51
Posts: 2,129
Quote:
Originally Posted by VicRattlehead View Post
mustang guys have figured it slowes them down about a tenth or 2 in the 1/4 with their spoiler.
Right on, same with the Tbird wing, we proved that with JL's car.

1996 Thunderbird LX- [email protected] NA
1998 GT - [email protected]
2001 Lightning - [email protected]
1996 GT 248A - [email protected]?
2011 GT - [email protected] 180 MPH at the Texas Mile


generated by sloganizer.net
kdanner is offline  
post #10 of 14 (permalink) Old 07-07-2008, 09:25 PM
PostWhore
 
loudpipessavelives's Avatar
 
Join Date: Mar 2005
Location: Warren/Youngstown Ohio
Age: 37
Posts: 1,100
Send a message via AIM to loudpipessavelives
thinking this is due to drag?

93 Bird/ Trick Flow 5.0-- awaiting some fresh paint
99 Marquis on 20's (daily)
01 Mustang Cobra with bolt on's-- 22k miles, might be for sale soon

http://www.cardomain.com/id/CDogg93
loudpipessavelives is offline  
post #11 of 14 (permalink) Old 07-07-2008, 09:36 PM
PostWhore
 
Join Date: Apr 2008
Posts: 1,716
Send a message via Yahoo to 94 Thunderbird XX
Quote:
Originally Posted by loudpipessavelives View Post
thinking this is due to drag?
I would be inclined to believe that the spoiler was designed for looks...not for aerodynamic qualities or downforce and such.

Take the '69 Dodge Carger Daytona and the '70 Plymouth Superbird for instance.
Their wings are there for looks... on the street. Meaning they were worthless for street use (speeds), but for the Nascar speeds they were intended for, they did their job very, very well. They were only as high as they was because there was no way a trunklid could be opened if they weren't, since their pillars were mounted outboard of the trunklid on the tops of the rear quarters. On the street? Worthless, and perhaps gaudy. But they had to be there for the Nascar spec'd homoglation.

I doubt our Tbirds needed these even if for Nascar in their day and age.

But.....they sure do look nice on a Tbird, even if they might not provide any stability or downforce at 70 mph let alone 180+mph.

Delete my account.
94 Thunderbird XX is offline  
post #12 of 14 (permalink) Old 07-07-2008, 09:48 PM
PostWhore
 
loudpipessavelives's Avatar
 
Join Date: Mar 2005
Location: Warren/Youngstown Ohio
Age: 37
Posts: 1,100
Send a message via AIM to loudpipessavelives
Quote:
Originally Posted by 94 Thunderbird XX View Post
I would be inclined to believe that the spoiler was designed for looks...not for aerodynamic qualities or downforce and such.
no no.....you understood me wrong, or I just plain out said it wrong. What I mean is the spoiler is ruining areodynamics as far as gas mileage goes....and taking the spoiler off and gaining mpg...that would be d/t better aerodynamics.

There is no way the weight of the spoiler is causing the gain in MPG, or atleast that much of a gain in mpg

93 Bird/ Trick Flow 5.0-- awaiting some fresh paint
99 Marquis on 20's (daily)
01 Mustang Cobra with bolt on's-- 22k miles, might be for sale soon

http://www.cardomain.com/id/CDogg93
loudpipessavelives is offline  
post #13 of 14 (permalink) Old 07-07-2008, 11:09 PM
Beer and Cheese
 
OxmanWI's Avatar
 
Join Date: Nov 2003
Location: Milwaukee, WI
Posts: 7,380
Garage
Quick everyone take your spoilers off if you want to save gas and go faster at the track!

God Bless the men & women who have served and serving to keep us free
OxmanWI is offline  
post #14 of 14 (permalink) Old 07-07-2008, 11:22 PM
Seasoned PostWhore
 
rbrown's Avatar
 
Join Date: Aug 2002
Location: Houston Clear Lake
Posts: 7,059
Quote:
Originally Posted by 93 lx View Post
same has been said about the roof rack on my expedition. i never use it, and could take it off, but i don't think it would look right.
I think ALL SUV's look better without the roof racks.

Quote:
Originally Posted by Mister_T View Post
I wonder if the SHO spoiler is much different...
Got one for sale if you want to test.


R
rbrown is offline  
Reply

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the TCCoA Forums forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.

Password:


Confirm Password:
Email Address
Please enter a valid email address for yourself.

Email Address:
OR

Log-in











Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page



Posting Rules  
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is On
Trackbacks are On
Pingbacks are On
Refbacks are On

 
For the best viewing experience please update your browser to Google Chrome