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1991 F-150 5.8 Help

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  #1  
Old 11-10-2007 | 08:07 PM
rezell's Avatar
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Joined: Nov 2007
Posts: 4
Default 1991 F-150 5.8 Help

Hey you guys, what can I do about improving my performance and my mpg (I know that is an oximoron). It is old and bone stock now. I was thinking about a chip or a programmer for it.
 
  #2  
Old 11-11-2007 | 09:33 AM
FordNutz's Avatar
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Joined: Jun 2007
Posts: 138
Default RE: 1991 F-150 5.8 Help

try a new intake like a k&n. A spacer for the throttlebody (found on ebay fairly cheap) which take minutes to install will help mpg and power. Buying a chip or programmer really isnt the best way sometimes. They may require a higher grade of gas with the new program and thats gonna cost you big bucks soon enough.
 
  #3  
Old 11-11-2007 | 12:21 PM
rezell's Avatar
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Posts: 4
Default RE: 1991 F-150 5.8 Help

Thanks
 
  #4  
Old 11-30-2007 | 09:30 AM
BLUE BLOOD's Avatar
Joined: Nov 2007
Posts: 9
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Default RE: 1991 F-150 5.8 Help

I agree a chip isnt always the answer. I recommend some sort of free flowing intake filter or cold air kit,K/N, Air Raid what ever you prefer. free flowing exhaust, full synthectic oil change, eng, trans, rear end, good tune up and advance timing a couple of degrees. Keep your foot out of it. LOL then if you still arent satisfied try a programmer/ chip and place it on economy.
Hope this helps should make a big difference. It did for me on my 91 f-250 when I drove it nice.

Mark
 
  #5  
Old 03-08-2014 | 01:43 AM
countryboy121's Avatar
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Joined: Mar 2014
Posts: 3
From: Iowa
Default

I agree as well. I have the same motor and I have found out a few things, Ive had 4 of these so far. First off the chips you see online that say add up to 50 plus horse and 4 mpg instantle, dont fall for that crap.All the things are is a ressistor that tells your engines ecu to run eaner and prematurly ignites he fuel in the cylinder and can damag your pistons,connecting rods,etc. The best way is to speed the money and get a real programmer and stick with the name brand stuff. Trust me ive gone threw a 351 with one of the cheaper chips, DONT FALL FOR IT. That being said, I run the msd ingition system stiff and it works awsome! if you really want to get into it change the gearing out in the rear end.
 
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