MPG/Performance Help!!!
12-09-2006, 04:09 PM
#1
Thread Starter
Join Date: Dec 2006
Posts: 38
MPG/Performance Help!!!
Hi:
This is my first post here however; I have been a life long Mustang owner. For the past 8 yrs or so I have been driving a 94 Cobra 10 or so miles round trip to work each day. The performance was great and I hardly noticed the gas mileage. I filed up every other week or so and life was great. :-) Recently I have been relocated down south and now travel 60+ miles round trip to work and back each day. :-( Believing a newer Mustang would give me better gas mileage I left the Cobra up north with a friend and bought a 04 GT. Over the past month I am dropping $50.00+ a week in gas and barely getting 15mpg. My daily drive mostly consists of city/traffic jammed highway driving. I never modded any of my Mustangs, so I have come here for help. I am looking to improve gas mileage by 8-10 mpg and increases HP to 300 for under $1000.00. After a few days of reading the forums I have come up with the following mods.
1. CAI = MAC.
2. 75mm TB/Plenum = Accufab
3. Under drive Pulleys = BBK if there not piggy backed otherwise Steeda.
4. Computer Chip = Have not decided yet need to do more research, looking at super chips right now.
5. Exhaust = 40 Series Delta Flow flowmaster mufflers. The rest of the exhaust system is stock.
What do you guys think is this setup??? Also any other suggestions are welcome. Should I mod the exhaust more?? H / X pipes, 2.5 pipes, etc...
Fantor
This is my first post here however; I have been a life long Mustang owner. For the past 8 yrs or so I have been driving a 94 Cobra 10 or so miles round trip to work each day. The performance was great and I hardly noticed the gas mileage. I filed up every other week or so and life was great. :-) Recently I have been relocated down south and now travel 60+ miles round trip to work and back each day. :-( Believing a newer Mustang would give me better gas mileage I left the Cobra up north with a friend and bought a 04 GT. Over the past month I am dropping $50.00+ a week in gas and barely getting 15mpg. My daily drive mostly consists of city/traffic jammed highway driving. I never modded any of my Mustangs, so I have come here for help. I am looking to improve gas mileage by 8-10 mpg and increases HP to 300 for under $1000.00. After a few days of reading the forums I have come up with the following mods.
1. CAI = MAC.
2. 75mm TB/Plenum = Accufab
3. Under drive Pulleys = BBK if there not piggy backed otherwise Steeda.
4. Computer Chip = Have not decided yet need to do more research, looking at super chips right now.
5. Exhaust = 40 Series Delta Flow flowmaster mufflers. The rest of the exhaust system is stock.
What do you guys think is this setup??? Also any other suggestions are welcome. Should I mod the exhaust more?? H / X pipes, 2.5 pipes, etc...
Fantor
12-09-2006, 04:45 PM
#3
6th Gear Member
Join Date: Jan 2004
Location: United States
Posts: 12,575
RE: MPG/Performance Help!!!
ORIGINAL: Fantor
Hi:
This is my first post here however; I have been a life long Mustang owner. For the past 8 yrs or so I have been driving a 94 Cobra 10 or so miles round trip to work each day. The performance was great and I hardly noticed the gas mileage. I filed up every other week or so and life was great. :-) Recently I have been relocated down south and now travel 60+ miles round trip to work and back each day. :-( Believing a newer Mustang would give me better gas mileage I left the Cobra up north with a friend and bought a 04 GT. Over the past month I am dropping $50.00+ a week in gas and barely getting 15mpg. My daily drive mostly consists of city/traffic jammed highway driving. I never modded any of my Mustangs, so I have come here for help. I am looking to improve gas mileage by 8-10 mpg and increases HP to 300 for under $1000.00. After a few days of reading the forums I have come up with the following mods.
1. CAI = MAC.
2. 75mm TB/Plenum = Accufab
3. Under drive Pulleys = BBK if there not piggy backed otherwise Steeda.
4. Computer Chip = Have not decided yet need to do more research, looking at super chips right now.
5. Exhaust = 40 Series Delta Flow flowmaster mufflers. The rest of the exhaust system is stock.
What do you guys think is this setup??? Also any other suggestions are welcome. Should I mod the exhaust more?? H / X pipes, 2.5 pipes, etc...
Fantor
Hi:
This is my first post here however; I have been a life long Mustang owner. For the past 8 yrs or so I have been driving a 94 Cobra 10 or so miles round trip to work each day. The performance was great and I hardly noticed the gas mileage. I filed up every other week or so and life was great. :-) Recently I have been relocated down south and now travel 60+ miles round trip to work and back each day. :-( Believing a newer Mustang would give me better gas mileage I left the Cobra up north with a friend and bought a 04 GT. Over the past month I am dropping $50.00+ a week in gas and barely getting 15mpg. My daily drive mostly consists of city/traffic jammed highway driving. I never modded any of my Mustangs, so I have come here for help. I am looking to improve gas mileage by 8-10 mpg and increases HP to 300 for under $1000.00. After a few days of reading the forums I have come up with the following mods.
1. CAI = MAC.
2. 75mm TB/Plenum = Accufab
3. Under drive Pulleys = BBK if there not piggy backed otherwise Steeda.
4. Computer Chip = Have not decided yet need to do more research, looking at super chips right now.
5. Exhaust = 40 Series Delta Flow flowmaster mufflers. The rest of the exhaust system is stock.
What do you guys think is this setup??? Also any other suggestions are welcome. Should I mod the exhaust more?? H / X pipes, 2.5 pipes, etc...
Fantor
Completely and totally impossible.
I have never seen anyone be able to produce any sort of evidence (or even claim) that they got significant improvement in MPG from any modification. I did get about 1 to 1.5 MPG on the highway only (straight 70 MPH cruising) with the supercharger, but its gone totally to **** in town if I am on it at all.
You have a mustang, and in crappy traffic (stop and go) you are getting lucky to see 15 MPG.
12-09-2006, 06:04 PM
#5
5th Gear Member
Join Date: Jul 2006
Location: NC
Posts: 2,663
RE: MPG/Performance Help!!!
My stock mustang gets a tad over 20 mpg. Underdrive pulleys will give you +1 mpg so I've heard. I also heard timing adjusters can be used to gain a little more too. You can get a tune for whatever octane level you prefer as well.
12-09-2006, 07:33 PM
#6
3rd Gear Member
Join Date: Jul 2005
Location:
Posts: 509
RE: MPG/Performance Help!!!
Your gas mileage sounds like it is on the low side of normal for stop/go type of driving.
First make sure the car is in tune...when was the last time the wires and plugs were changed ?
Air filter ? All that stuff.
Make sure tires are inflated properly & change the oil. This is all stuff that needs to be done and there is nothing to be gained by dealying them.
With the above out of the way re check your MPG
As far as the bolt on stuff - some things do improve the gas mileage because they affect the efficiency of the engine.
Timing advance either from an adjuster or chip helps. A chip will probably increase fuel at the same time and you will be too busy stepping on the gas to worry about mileage
A bigger TB will do nothing or hurt a bit since it reduces velocity of the intake air.
Pulleys will improve mileage.
Exaust will either help or hurt depending how you react to it - If you use the sound to gage how hard you are working the engine and drive gently it will save you gas. If you are like me and like to hear the throaty growl - well you know what I mean.
First make sure the car is in tune...when was the last time the wires and plugs were changed ?
Air filter ? All that stuff.
Make sure tires are inflated properly & change the oil. This is all stuff that needs to be done and there is nothing to be gained by dealying them.
With the above out of the way re check your MPG
As far as the bolt on stuff - some things do improve the gas mileage because they affect the efficiency of the engine.
Timing advance either from an adjuster or chip helps. A chip will probably increase fuel at the same time and you will be too busy stepping on the gas to worry about mileage
A bigger TB will do nothing or hurt a bit since it reduces velocity of the intake air.
Pulleys will improve mileage.
Exaust will either help or hurt depending how you react to it - If you use the sound to gage how hard you are working the engine and drive gently it will save you gas. If you are like me and like to hear the throaty growl - well you know what I mean.
12-09-2006, 08:23 PM
#7
2nd Gear Member
Join Date: Jul 2005
Location: CT
Posts: 420
RE: MPG/Performance Help!!!
Fantor,
Just curious. What type of tranny? Auto or 5 speed? 15 sounds a bit low. Also, after paying for all these mods, how long is it going to take you to get your money back? Personally, I don't think spending money on mods is going to help. Sounds like you may have a problem and you'd just be masking it with all these add ons. I have an 02 GT and I can squeeze 23 mpg out of it using mostly 5th gear and driving like my grandma.
Just curious. What type of tranny? Auto or 5 speed? 15 sounds a bit low. Also, after paying for all these mods, how long is it going to take you to get your money back? Personally, I don't think spending money on mods is going to help. Sounds like you may have a problem and you'd just be masking it with all these add ons. I have an 02 GT and I can squeeze 23 mpg out of it using mostly 5th gear and driving like my grandma.
12-09-2006, 08:24 PM
#8
6th Gear Member
Join Date: Jan 2004
Location: United States
Posts: 12,575
RE: MPG/Performance Help!!!
15 is a bit low, but remeber that he is talking about what sounds like nightmare stop and go big city traffic.
I know my DD goes from 41 MPG to 33 MPG just from adding 10 minutes to every 30 of highway driving.
I know my DD goes from 41 MPG to 33 MPG just from adding 10 minutes to every 30 of highway driving.
12-09-2006, 08:35 PM
#9
2nd Gear Member
Join Date: Jul 2005
Location: CT
Posts: 420
RE: MPG/Performance Help!!!
Yeah, I suppose, although 15 mpg sounds like SUV mileage. I am sure there is a margin of error here too. Hell, if it were me, I'd just get another job. I hate bumper to bumper, especially with a stick.
