MPG with gears?

S

SetofAces

New Member

Jan 22, 2009

103

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0

SF Bay Area

Apr 27, 2009

#1

• Apr 27, 2009

• #1

I'm building up my non-HO motor to better-than-HO-motor specs (e303, 70mm MAF and TB, 3.5" Powerpipe, Explorer intake, mildly ported E7s, Exhaust, but stock headers) and I was wondering, what kind of fuel economy could I expect when I changed the gears? It's gonna have to wait a bit, and the gears that I get are almost certainly gonna be 3.55s or 3.73s (turbo coupe rear-end swap). I think I was getting close to 24 mpg or so (was non-HO with 14 lb. injectors!), but have no real idea as the fuel gauge never worked and I never bothered to write the exact numbers down.

Anyone have something close to the setup that I described? What kind of Economy are you getting?

 

flyby84

New Member

Feb 22, 2009

48

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Arkansas

Apr 27, 2009

#2

• Apr 27, 2009

• #2

I get about 19-20 with the 3:55 gears in my car. If you get much over 55mph it`ll suck gas but just for normal driving they are great!

 

WHT306

Member

Oct 21, 2008

104

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16

HUNTSVILLE AL

Apr 27, 2009

#3

• Apr 27, 2009

• #3

I get about 18-22 mpg but i have 3.27 gears and drive 44 miles one way to work everyday. i have a friend getting about the same with 3.55s and he has about everything done that you can bolt on to it.

hope this helps a little bit.

 

tannerc91gt

This last 25% is foreign territory at this point

Founding Member

Nov 29, 1999

4,392

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Indiana

Apr 27, 2009

#4

• Apr 27, 2009

• #4

I have 4.10s and get 10mpg.but I'm HO and 4.10s suck gas like hell

 

cardudeusa

Founding Member

Oct 22, 2002

1,744

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Home of the Florida Gators!

Apr 27, 2009

#5

• Apr 27, 2009

• #5

I get 16-20 depending on how i drive, keeping it below 65mph helps a lot!

 

tannerc91gt

This last 25% is foreign territory at this point

Founding Member

Nov 29, 1999

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Apr 27, 2009

#6

• Apr 27, 2009

• #6

Who drives below 65mph????

 

Boss91GT-SC

Member

Jul 13, 2007

27

2

19

Hope Mills NC

Apr 27, 2009

#7

• Apr 27, 2009

• #7

I was still seeing 16 with the blower and 3.73's if I drove nice.

 

cardudeusa

Founding Member

Oct 22, 2002

1,744

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48

Home of the Florida Gators!

Apr 27, 2009

#8

• Apr 27, 2009

• #8

tannerc91gt said:

Who drives below 65mph????

Click to expand...

Someone whos been pulled over too many times and talked his way out of a few too many speeding and reckless driving tickets

 

tannerc91gt

This last 25% is foreign territory at this point

Founding Member

Nov 29, 1999

4,392

2,967

234

Indiana

Apr 27, 2009

#9

• Apr 27, 2009

• #9

Haha yea I know what you mean I had 5 before I turned 17. I then got a faster car and stopped getting tickets?

 

flyby84

New Member

Feb 22, 2009

48

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Arkansas

Apr 27, 2009

#10

• Apr 27, 2009

• #10

Yeah...I feel sorry for those guys paying high risk insurance!! I keep her at or below speed limit cuz who wants to throw that "mod money" away!!

 

67coupe

Founding Member

Apr 5, 2002

658

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93

Huntsville, AL

Apr 28, 2009

#11

• Apr 28, 2009

• #11

Gas mileage is going to depend mainly on your commute (highway vs. city) and your right foot.

With mods in sig, running 75% highway mileage, I got 23 mpg. Since I've changed jobs, my daily drive involves zero highway mileage. I'm now getting 19 mpg.

As long as you keep the car in good tune, 3.73's should not "kill" your mileage with the engine setup you listed.

 

wythors

Get off my lawn!!!

Founding Member

May 17, 2000

2,277

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69

C Addle

Apr 28, 2009

#12

• Apr 28, 2009

• #12

My Saleen, bone stock except for 3.55's installed by Saleen and 25,000 miles, gets just about 20 on the highway. My LX, with 3.73's and lots to mods and 100k +, gets about 17.

 

SMOKEDYA

20+ Year Stangneter

Jul 13, 2003

3,637

8

79

Tucson AZ

Apr 28, 2009

#13

• Apr 28, 2009

• #13

My 351 coupe is right about 8-10 MPG with a tremac and 4.10's. My other coupe i just did the milage and got 30MPG with 3.55's and a T-5 trans. peace





john