MAF mod? - Ranger-Forums - The Ultimate Ford Ranger Resource


4.0L OHV & SOHC V6 Tech General discussion of 4.0L OHV and SOHC V6 Ford Ranger engines.

Reply
 
LinkBack Thread Tools Search this Thread
  #1  
Old 03-24-2008
TrePaul86's Avatar
Member
Thread Starter
iTrader: (8)
 
Join Date: Apr 2007
Location: Gresham, OR
Posts: 1,369
Icon5 MAF mod?

So I'm curious...

Has anyone done the n3elz's MAF mod on either of the two 4.0L motors?

I want to do this to my SOHC but don't know if i'll encounter any problems...

I also want to know if this can be done on the OHV because my buddy wants to do it to his...
Reply With Quote
  #2  
Old 03-24-2008
n3elz's Avatar
RF Veteran
 
Join Date: Jun 2004
Location: Kennett Square, PA
Posts: 10,620
If you do on 4.0's, it's a pain sometimes.

If you decide to try it, what you need to do is make the little "floor" at the base of the sensor tunnel as thin as possible, and feather the leading edge of it down to a "knife edge" of sorts. This solved the problem ones I did have.

It appears at higher flow that the leading edge creates turbulence or an air dam effect that reduces the reading. Streamlining that cut edge solved the problem of lean operation at high throttle with the two problem units I worked on that were SOHC 4.0's.

With the edge feathered, the long term fuel trim stayed within limits is what I'm saying. We watched it with my scanner. Prior to the streamlining of that edge it was going way lean (and trying to add fuel but unable to add enough) at high throttle while being fine at idle and part throttle.

Both users reported power gains, for what that's worth.
Reply With Quote
  #3  
Old 03-24-2008
TrePaul86's Avatar
Member
Thread Starter
iTrader: (8)
 
Join Date: Apr 2007
Location: Gresham, OR
Posts: 1,369
Cool... so basically taper the part at the white line downward... so taper it so the end of the taper is further in on the intake?



Just making sure that's all I should do before I go out and do mine and my buddys... We're both looking to see a small gain from this! Sweet!
Reply With Quote
  #4  
Old 03-25-2008
Fx4wannabe01's Avatar
RF Veteran
iTrader: (23)
 
Join Date: May 2005
Location: Boring, Oregon
Posts: 21,721
Let me know how it goes...i might need to do this to my extra MAF! Also do that Throttle Body mod as well.
Reply With Quote
  #5  
Old 03-25-2008
TrePaul86's Avatar
Member
Thread Starter
iTrader: (8)
 
Join Date: Apr 2007
Location: Gresham, OR
Posts: 1,369
What throttle body mod? lol
Reply With Quote
  #6  
Old 03-25-2008
WowMike2001's Avatar
Member
 
Join Date: Oct 2007
Location: Stevenson, WA
Posts: 2,583
I was pondering that last night too.. so I ran a search on 'throttle body mod' the only thing that came up were things about tornado's and spacers and such.. please tell us you arent tossing one in for bling factor..! -laughs-
Reply With Quote
  #7  
Old 03-25-2008
TrePaul86's Avatar
Member
Thread Starter
iTrader: (8)
 
Join Date: Apr 2007
Location: Gresham, OR
Posts: 1,369
Shane and bling factor? Those are opposites of a spectrum lol
Reply With Quote
  #8  
Old 03-26-2008
Fx4wannabe01's Avatar
RF Veteran
iTrader: (23)
 
Join Date: May 2005
Location: Boring, Oregon
Posts: 21,721
shane? bling factor? what? hells nah.


The throttle body mod i am talking about.......pull off your intake tube, and turn your throttle to pull open, the mod basically cleans up the the "fatness" of the throttle "plate" or whatever.

I did search, couldnt find anything! lol......i have no clue where i got that info from. haha. Trevor, stop on by and i'll show ya on my extra intake.
Reply With Quote
Reply

Related Topics
Thread Thread Starter Forum Replies Last Post
MAF mod ? cheesehazard 2.9L & 3.0L V6 Tech 3 06-24-2005 09:55 PM
4.0 MAF mod "tuning" information -- new stuff n3elz 4.0L OHV & SOHC V6 Tech 70 02-06-2005 01:33 AM
MAF mod on a 4.0l? Mnemonic General Technical & Electrical 16 08-24-2004 08:34 PM


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 12:53 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.