General LSX Automobile Discussion Non-technical LSX related topics.

Gotta love 11.1MPGs

Thread Tools
 
Search this Thread
 
Old 01-28-2009, 08:15 PM
  #1  
12 Second Club
Thread Starter
iTrader: (5)
 
nitr0racing21's Avatar
 
Join Date: Sep 2008
Posts: 1,010
Likes: 0
Received 0 Likes on 0 Posts
Default Gotta love 11.1MPGs

I babied this car after wondoering what kind of milage I was getting weel on the highway I am getting 11.1MPG all I can say is what the ****!


Headers no cats
BBK SSi intake manifold
MSD wires
NGK 55 plugs
tune but have a bad knock sensor

I cruise controlled and "hypermiled" for the whole tank had 108.1 and took 11.1
Old 01-28-2009, 08:24 PM
  #2  
Moderator
iTrader: (11)
 
jimmyblue's Avatar
 
Join Date: Mar 2002
Location: East Central Florida
Posts: 12,604
Likes: 0
Received 6 Likes on 6 Posts

Default

That's pretty ill. I still get about 15 in mixed driving
(not much highway) with all my mods and a happy
foot.

Hell, my 2+ ton Caprice with a cammed 400SBC and
no overdrive got 9MPG last fillup and most of that
was hauling a ton of trailer behind.
Old 01-28-2009, 08:24 PM
  #3  
12 Second Club
Thread Starter
iTrader: (5)
 
nitr0racing21's Avatar
 
Join Date: Sep 2008
Posts: 1,010
Likes: 0
Received 0 Likes on 0 Posts
Default

yea and I just sea foamed it. i am going to blame it on the knock sensor for now
Old 01-28-2009, 08:29 PM
  #4  
TECH Apprentice
 
AxisOfOil's Avatar
 
Join Date: Jun 2008
Location: Mesa, AZ
Posts: 391
Likes: 0
Received 0 Likes on 0 Posts
Default

that's like... wow.

oh, and i'm not sure how you feel about this, but your math is off... that's 9.7mpg

and "hypermiling" doesn't always work so well on our cars from what I can tell, I usually get the best economy at ~1800-2200 rpm. still... that's rough.

definitely recommend fixing the knock sensor... it's probably dumping fuel if it isn't working. i'm sure you know that though.
Old 01-28-2009, 08:48 PM
  #5  
12 Second Club
iTrader: (13)
 
LS1Formulation's Avatar
 
Join Date: Apr 2006
Location: Grand Rapids, Michigan
Posts: 2,709
Received 561 Likes on 445 Posts

Default

You may want to replace your O2's as well. Clean your MAF sensor too. My car gets 24MPG with all the mods I have done, so something is WAY off with yours.
Old 01-28-2009, 08:59 PM
  #6  
TECH Enthusiast
iTrader: (22)
 
TAtoad's Avatar
 
Join Date: Jun 2006
Location: San Antonio, TX
Posts: 596
Likes: 0
Received 0 Likes on 0 Posts

Default

thats insane man. so on a road trip after an hour and a half you half to fill up??
Old 01-28-2009, 09:08 PM
  #7  
12 Second Club
Thread Starter
iTrader: (5)
 
nitr0racing21's Avatar
 
Join Date: Sep 2008
Posts: 1,010
Likes: 0
Received 0 Likes on 0 Posts
Default

no after about 45 minutes I dont get good gas mileage on long trips when I do 140 MPH lol
Old 01-28-2009, 09:13 PM
  #8  
TECH Enthusiast
iTrader: (1)
 
Ice78Transam's Avatar
 
Join Date: Jun 2008
Location: Naperville, Ill
Posts: 510
Likes: 0
Received 0 Likes on 0 Posts
Default

Thats illegal. I'll pretend you didn't say that.
Old 01-28-2009, 09:23 PM
  #9  
TECH Fanatic
iTrader: (28)
 
johnLs1camaro's Avatar
 
Join Date: Nov 2006
Location: NA,Indiana/louisville, ky
Posts: 1,757
Received 4 Likes on 4 Posts

Default

^^haha

yeah dude that sucks, my car gets 17 with a cammed and stalled! you need to check your ****, be sure tune isnt F*CKED up either.Also fix the knock sensor would be smart!
Old 01-28-2009, 09:26 PM
  #10  
12 Second Club
Thread Starter
iTrader: (5)
 
nitr0racing21's Avatar
 
Join Date: Sep 2008
Posts: 1,010
Likes: 0
Received 0 Likes on 0 Posts
Default

It must be the knock sensor which is ******* the tune
Old 01-28-2009, 09:28 PM
  #11  
On The Tree
iTrader: (3)
 
8675309's Avatar
 
Join Date: Jan 2009
Posts: 191
Likes: 0
Received 0 Likes on 0 Posts
Default

You want to hear bad, i've got a Camry as my winter car and it seriously gets a consistent 12 mpg. And I don't beat it or anything. I would do a tune up but im probably selling it within a month so im just gonna leave it.
Old 01-28-2009, 09:31 PM
  #12  
TECH Fanatic
iTrader: (13)
 
BlueBird346's Avatar
 
Join Date: Nov 2007
Location: Oxford, AL
Posts: 1,678
Likes: 0
Received 1 Like on 1 Post

Default

Last i checked mine got about 17 all city driving, before the tune. But mines an M6 so i guess that doesnt count lol.
Old 01-28-2009, 09:31 PM
  #13  
TECH Fanatic
 
406malibu's Avatar
 
Join Date: Apr 2008
Location: Shillington PA
Posts: 1,775
Likes: 0
Received 0 Likes on 0 Posts
Default

also check your air filter, I know sounds so minuscule, but mine clogged up (fra mod ) and it dropped to 11.5, then 10.3 mpg, cleaned it out, and got 24 the next tank.
Old 01-28-2009, 09:35 PM
  #14  
TECH Senior Member
iTrader: (71)
 
lemons12's Avatar
 
Join Date: Jul 2007
Location: Winchester, TN
Posts: 11,088
Likes: 0
Received 2 Likes on 2 Posts

Default

i think you are driving it harder than you say (140mph) OR your math is off..



my mods..
ms4
prcls6s
4k stall
410s
ported 9090
full exhaust
yadayadayada

i get about 14-16 on the highway and about 11-12 around town..
Old 01-28-2009, 10:35 PM
  #15  
TECH Fanatic
iTrader: (39)
 
therobman's Avatar
 
Join Date: Oct 2006
Location: Nyc
Posts: 1,768
Likes: 0
Received 2 Likes on 2 Posts

Default

i just got town 13.75 all town driving and prob 15 pulls lol mods in sig somethings deff wrong there
Old 01-28-2009, 10:37 PM
  #16  
Launching!
iTrader: (4)
 
Zac_Speed's Avatar
 
Join Date: Jan 2009
Location: Liberty, Mo.
Posts: 272
Likes: 0
Received 1 Like on 1 Post

Default

I like how the guy up there said that's illegal, to the OP's 140mph driving. Then the guy in the next post has an avatar pic of him with his speedo pegged. GOD I LOVE THIS SITE

Last edited by Zac_Speed; 01-28-2009 at 10:37 PM. Reason: spelling error
Old 01-28-2009, 10:39 PM
  #17  
TECH Fanatic
 
FiredUpZ28's Avatar
 
Join Date: Jun 2006
Location: Elgin, Il
Posts: 1,287
Likes: 0
Received 1 Like on 1 Post

Default

Take care of the knock sensor and make sure your maintenance is up to par. The 02 sensors should be fine unless you are running really rich or misfiring, thats what kills 02 sensors. That and silicone based grease

Do '00s have EGR? Without it on a car that came with it, that can have a decent effect on cruising MPG. Are you A4 or M6? If A4 is your torque converter locking up? I've helped a lotta people with fuel economy problems lol.
Old 01-28-2009, 10:41 PM
  #18  
TECH Senior Member
iTrader: (96)
 
01ssreda4's Avatar
 
Join Date: Aug 2007
Location: Turnin' Wrenches Infractions: 005
Posts: 24,240
Likes: 0
Received 81 Likes on 72 Posts

Default

Originally Posted by Zac_Speed
I like how the guy up there said that's illegal, to the OP's 140mph driving. Then the guy in the next post has an avatar pic of him with his speedo pegged. GOD I LOVE THIS SITE
he also didnt apparently notice that the OP has not cats.....<---thats illegal...
Old 01-28-2009, 10:49 PM
  #19  
TECH Senior Member
iTrader: (71)
 
lemons12's Avatar
 
Join Date: Jul 2007
Location: Winchester, TN
Posts: 11,088
Likes: 0
Received 2 Likes on 2 Posts

Default

Originally Posted by Zac_Speed
I like how the guy up there said that's illegal, to the OP's 140mph driving. Then the guy in the next post has an avatar pic of him with his speedo pegged. GOD I LOVE THIS SITE
nice catch..

Originally Posted by 01ssreda4
he also didnt apparently notice that the OP has not cats.....<---thats illegal...
my car is completely legal....
Old 01-28-2009, 10:59 PM
  #20  
TECH Fanatic
iTrader: (22)
 
Cobra2WS6's Avatar
 
Join Date: Jul 2006
Location: South FLORIDA
Posts: 1,798
Likes: 0
Received 0 Likes on 0 Posts
Default

Yea thats 9.8mpg when you divide it... And thats highway? There is no possible way



All times are GMT -5. The time now is 12:48 AM.