MustangWorks.com - The Ford Mustang Power Source!

Go Back   MustangWorks.com : Ford Forums > Mustang & Ford Tech > Windsor Power
Register FAQ Members List Calendar

Notices


Reply
 
Thread Tools Rate Thread Display Modes
Old 03-14-2003, 05:02 PM   #1
1jimmy__d
Registered Member
 
Join Date: Apr 2002
Posts: 299
Default what gas mileage should my car be getting?

i have been driving my 90 lx that i just bought (see mods below) and it seems like it is sucking the gas down a lot quicker than my 89 lx. Any idea how many miles/gallon or tank i should be getting with these mods? I am about half way down and have gone only 60 miles!!!!!! hopefully it is the type that it drops quick to half and then takes a while the last half! PLEASE let me be right. anyone know what i shiould be getting?

This has been city driving- stop n go. Thanks!

ALSO, I dont think I have even gone that far (60 miles) becasue my speedo is off which would inturn make the odomoter roll faster than it is really going WTF!
__________________
90 lx hatch, holley systemax II kit, rebuilt 302, BBK 155 lph fuel pump, pro M bullet mass meter wtih BBk cold air intake, 30 # injectors, 70 mm TB, jacobs ignition system, edelbrock water pump, BBk longtube headers with h-pipe, flowmasters, b&m ripper shifter, 3.55 gears, Proform electric fan, subframe connectors/removed smog pump and ac!

75 shot of nitrous!

13.2 at 112 1/4 mile- no traction!
1jimmy__d is offline   Reply With Quote
Old 03-14-2003, 06:31 PM   #2
lx mike
Undescribable
 
lx mike's Avatar
 
Join Date: Sep 1998
Location: Ft Myers Fla
Posts: 1,539
Default

You realy can't go by how far the needle moves. some cars it moves quicker the first half of gauage and second half is is like it's sleeping. only true way to measure mileage is to start with full tank drive around town for a few day and fill back up and divide into the miles driven. i had same thing just happen to me. i filled up and driving to nmra in bradenton i could almost watch the gas needle moving but when i stopped to fill up it only took 6 gallons to go 140 miles which worked out to 23 mpg.
__________________
Rice Haters Club Member #101
lx mike is offline   Reply With Quote
Old 03-14-2003, 09:20 PM   #3
sdd228
Registered Member
 
Join Date: Apr 1999
Location: penfield, ny, u.s.
Posts: 78
Default

hey guy,
listen...if i'm right, you only drive the car 6 months out of the year.
i would just drive it and race....based on your numbers you can beat just about any car out on the street...HAVE FUN for cryin out loud!!!!!!
__________________
'89 lx 5.0-FLowmasters, H-pipe with cats, 373's, pulleys, BBk headers
Best 1/4 mile- 14.1 @98 mph (67 deg. 90+ humidity)
Married and bought the new mods...
Nitto DR's 245/50R16
NOS hopefully 100 shot
sdd228 is offline   Reply With Quote
Old 03-15-2003, 07:33 AM   #4
chuck88
Registered Member
 
chuck88's Avatar
 
Join Date: May 1999
Location: Wood Ridge NJ USA
Posts: 341
Default

I have owned several fords and they all did the same thing. When filling the needle goes way passed full then after a long while the needle finally moves to F then bang 1/2 then in a reasonable amount of time it hits 1/4 tank. like you heard before do not go by the guage fill er up and check your miles per gallon the accurate way. Remeber if you race, smoke the tires, launch hard at lights, (you know use the car the way Ford intended), idle a lot your #s will be incorrect. Good luck


Chuck 88
__________________
So what if its "midlife crisis".

Wife, 2 kids, busy job, "fixer upper" house, and I still have time for the Mustang!!!

I Love my kids!!!
chuck88 is offline   Reply With Quote
Old 03-15-2003, 09:45 AM   #5
lx5091
Registered Member
 
lx5091's Avatar
 
Join Date: Nov 2001
Location: Fall River, MA
Posts: 467
Default

your odometer has to be working properly to calculate the correct mileage....but it shouldn't concern you so much---just have fun like sd228 said!
__________________
'02 Explorer XLT 4.0L --Nice Vehicle

'97 Saturn SL1--Soon to be ditched for a Ford!
lx5091 is offline   Reply With Quote
Old 03-18-2003, 03:27 PM   #6
Simi Stang
Guest
 
Posts: n/a
Default gas mileage

Well the '90 LX that you bought has a ton more modifications done to it than the '89 you had. That would be why you are getting worse gas mileage.
  Reply With Quote
Old 03-18-2003, 08:34 PM   #7
1jimmy__d
Registered Member
 
Join Date: Apr 2002
Posts: 299
Default

true true! i got 13 mpg last tank, thats with letting it run when i wsnt driving it and city driving. this tank i should do SLIGHTLY better. i just thought that people with mods similar to mine brag how they continue to get 17 mpg, but i guess those days are gone! oh well, well worth the power!
__________________
90 lx hatch, holley systemax II kit, rebuilt 302, BBK 155 lph fuel pump, pro M bullet mass meter wtih BBk cold air intake, 30 # injectors, 70 mm TB, jacobs ignition system, edelbrock water pump, BBk longtube headers with h-pipe, flowmasters, b&m ripper shifter, 3.55 gears, Proform electric fan, subframe connectors/removed smog pump and ac!

75 shot of nitrous!

13.2 at 112 1/4 mile- no traction!
1jimmy__d is offline   Reply With Quote
Old 03-20-2003, 06:21 PM   #8
Simi Stang
Guest
 
Posts: n/a
Default gas mileage

Quote:
Originally posted by 1jimmy__d
true true! i got 13 mpg last tank, thats with letting it run when i wsnt driving it and city driving. this tank i should do SLIGHTLY better. i just thought that people with mods similar to mine brag how they continue to get 17 mpg, but i guess those days are gone! oh well, well worth the power!
Yeah, I have a similar combo as you (Edelbrock heads/intake/cam) and I get 12-15mpg depending on how "heavy" my foot is feeling.
  Reply With Quote
Old 03-20-2003, 08:41 PM   #9
BilLster
Registered Member
 
BilLster's Avatar
 
Join Date: Oct 2000
Location: Ontario canada
Posts: 446
Default

gas milage i'm happy if a tank lasts between pay week's and its not my primary car.

as for gas milage thats a question for the bike.

think of it this way gas could double in price and we would all still buy it just drive smaller vehicles mon-thursday and hate it

wait thats what im doing right now.
__________________
89 with 331 t3'/t4 hybrids. upr Suspention worked out finnaly . 9.89 144 mph .
BilLster is offline   Reply With Quote
Reply



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 Off

Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
Gas mileage? Nixon1 Windsor Power 17 08-07-2003 01:43 PM
Gas Mileage Jacob_M Blue Oval Lounge 5 01-28-2002 12:11 AM
really bad gas mileage??? green94droptop Windsor Power 22 05-22-2001 01:12 AM
Gas mileage on a '78?!! purple horse Classic Mustangs 3 03-09-2000 01:07 AM
68 Mustang Gas Mileage?! CobraAC Classic Mustangs 3 10-23-1999 07:35 PM


All times are GMT -5. The time now is 02:25 PM.


SEARCH