Flowmaster and gas mileage - Ranger-Forums - The Ultimate Ford Ranger Resource


2.3L & 2.5L I4 Tech General discussion of 2.3L and 2.5L I4 Ford Ranger engines.

Reply
 
LinkBack Thread Tools Search this Thread
  #1  
Old 04-02-2007
timpat92855's Avatar
Member
Thread Starter
iTrader: (1)
 
Join Date: Nov 2006
Location: Lousiville, MS
Posts: 1,067
Flowmaster and gas mileage

I got my series 40 flow saturady and put it on in the stock location with stock pipe and ran a turn down right after it in front of the axle and it sounds awsome...but anyway i know i kept my foot in it the first day i got it, and today coming back from school i noticed it drank more gas, i mean i lost about 5 mpg or so, and my truck is all stock but the flow...Did anyone elses do that or is it just mine?
Reply With Quote
  #2  
Old 04-02-2007
01xltranger4x4's Avatar
Member
iTrader: (3)
 
Join Date: May 2005
Location: MI
Posts: 3,200
5mpg?

How are you calculating this?

You should'nt of lost anything, 1-2 TOPS with your foot in it.
Reply With Quote
  #3  
Old 04-02-2007
JSteele's Avatar
Member
 
Join Date: Jan 2007
Location: Columbus, Oh
Posts: 287
i had the same muffler put on my 99' 3.O and the only reason i noticed a decrease in my mpg was because for the first week or so i could not keep my foot of the skinny pedal...now 5 mpg sounds a bit dramatic? how did you come up with this number?
Reply With Quote
  #4  
Old 04-02-2007
timpat92855's Avatar
Member
Thread Starter
iTrader: (1)
 
Join Date: Nov 2006
Location: Lousiville, MS
Posts: 1,067
i was on the F when i left for school this mornin...13 miles away...i came staright home and i was almost on a 3/4 tank?...didnt think i dogged it at all today...
Reply With Quote
  #5  
Old 04-02-2007
timpat92855's Avatar
Member
Thread Starter
iTrader: (1)
 
Join Date: Nov 2006
Location: Lousiville, MS
Posts: 1,067
called a friend with a 98 2.3 ranger auto and he took his off cuz of the way his drank gas...he's running straight pipe with turn down now and gets twice the gas mileage as with the flow....
Reply With Quote
  #6  
Old 04-02-2007
Needforspeed3685's Avatar
Member
 
Join Date: Aug 2005
Location: Lowell, AR
Posts: 1,836
This makes me wonder if my poor gas mileage was attributed to the Flowmaster 40, instead of the IAT mod like I originally speculated.
Reply With Quote
  #7  
Old 04-02-2007
5speedin2.3's Avatar
Member
 
Join Date: May 2005
Location: Livonia, Mi
Posts: 12
back pressure...

this is why ill be taking mine off soon and going to something a tad bit quieter, i also think it makes my truck sound like a pissed off escort with a fart can.
Reply With Quote
  #8  
Old 04-03-2007
timpat92855's Avatar
Member
Thread Starter
iTrader: (1)
 
Join Date: Nov 2006
Location: Lousiville, MS
Posts: 1,067
Its not that bad...i dogged it today in town and showed out alil and it got better, but it really did drop...a good bit, friend of mine said run the pipe over the axle then turn it down so the pipe will help pressure out
Reply With Quote
  #9  
Old 04-03-2007
Mr. Special's Avatar
Member
 
Join Date: May 2005
Location: Irvine, CA
Posts: 3,411
something else must be wrong or the gauge is off. There is no way the Flowmaster will cause even a single MPG decrease unless [like myself] you drive a bit harder because of its sexy sound =)
Reply With Quote
  #10  
Old 04-03-2007
timpat92855's Avatar
Member
Thread Starter
iTrader: (1)
 
Join Date: Nov 2006
Location: Lousiville, MS
Posts: 1,067
thats the only thing i did was the flow...gas guage had a new sending unit put in about 3 weeks ago and it works fine
Reply With Quote
  #11  
Old 04-03-2007
MemphisSenior's Avatar
Member
 
Join Date: Mar 2007
Location: Spring City, TN
Posts: 331
Must be the way you're driving. I had a 40 on my truck for about 6 months. Single in, duel out. No difference in MPG at all.
I took it off because it was to loud for me and I lost bottom end because the pipe I.D. was to big.

Last edited by MemphisSenior; 04-04-2007 at 12:19 AM.
Reply With Quote
  #12  
Old 04-03-2007
01xltranger4x4's Avatar
Member
iTrader: (3)
 
Join Date: May 2005
Location: MI
Posts: 3,200
You CANT go by the gas guage, its NOT accurate.

Try this:

When you FILL UP with gas, re-set the tripmeter to 00000
Drive around until you are close to E, or when the LF light comes on.
Fill up with gas, then divide how many miles you drove by how many gallons it took you fill it up again...

Thats the correct way to calculate MPG..
Reply With Quote
  #13  
Old 04-04-2007
timpat92855's Avatar
Member
Thread Starter
iTrader: (1)
 
Join Date: Nov 2006
Location: Lousiville, MS
Posts: 1,067
yea but i never have enough to fill all the way up, body shop i work at dont like paying me much...LOL, its getting better, guess it could jus be the muffler breaking in...
Reply With Quote
  #14  
Old 04-04-2007
01xltranger4x4's Avatar
Member
iTrader: (3)
 
Join Date: May 2005
Location: MI
Posts: 3,200
Well just try it with a 1/2 tank then...

Reason i say let it go down to E is becuase the lower you let the needle go down, the more accurate your mileage readout will be.
Reply With Quote
  #15  
Old 04-05-2007
timpat92855's Avatar
Member
Thread Starter
iTrader: (1)
 
Join Date: Nov 2006
Location: Lousiville, MS
Posts: 1,067
i found some leaks and ran another bead around it and put a 1/2 tank in it and drove 50 miles and the hand did not move, unlike when it was leaking...
Reply With Quote
Reply

Related Topics
Thread Thread Starter Forum Replies Last Post
very low gas mileage and smell of gas Smith13 4.0L OHV & SOHC V6 Tech 4 12-29-2014 03:26 PM
Poll: Flowmaster Super 40 or Flowmaster Super 44 Fx4wannabe01 4.0L OHV & SOHC V6 Tech 109 01-03-2011 01:33 PM
Aluminum cover and gas mileage Ron General Ford Ranger Discussion 2 03-04-2006 02:11 PM
06 Ranger and gas mileage... Rddvl23 General Ford Ranger Discussion 7 01-17-2006 06:50 PM
gear sizes and gas mileage mcerwing Drivetrain Tech 8 10-19-2005 11:03 AM


Thread Tools Search this Thread
Search this Thread:

Advanced Search

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
Trackbacks are Off
Pingbacks are Off
Refbacks are Off



All times are GMT -6. The time now is 05:26 AM.


We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.