Switching from carb to FI on a Ford (fwd)

gtk110 at psu.edu gtk110 at psu.edu
Fri Mar 29 16:07:57 GMT 1996


>:
>:The subject says it all, well most of it anyway.  I want to get rid of
>:the old unreliable inefficient carb on my 84 F-150 4.9L.  (It's my tow
>:vehicle so this is sort of Auto-X related).  I don't see any reason why
>:I shouldn't be able to convert to a TBI system (Throttle Body Injection)
>:I just don't know where to start to look.
>:
>:So if anyone has done this to their vehicle I'd like to hear the pros
>:and cons of it based on your experiences.  As well as your manufacturer
>:and cost.
>:
>:Thanks.
>:
>
>
>I got your address from one of the guys on the autocross list.  I have
>subscribed and read the welcome and I think that this post fits in with
>the purpose of the list.  
>
>I was also contemplating converting to an MSD type of ignition to
>totally elimanate the original ECU, it seems from the welcome that it
>may be possible to use the original ECU.  One of the major problems I am
>having is with the EEC_IV system the ignition is electronically adjuting
>the timing.  Since one or more of my sensors is spewing erroneous
>reading I have had to disconnect the SPOUT (or is it the SEA) connector
>and I just leave the timing advanced slightly from the Base timing.
>Base is 10deg and I have it advanced to 16deg.
>
>So, that said, any suggestions?  
>
>
>
>-- 
>Ron Madurski      
>rmadursk at galaxy.galstar.com
>
>
You might be able to adpt the late model FI system from that of a 5.0
mustang... I just happen to have a speed density sysyem lying around...wires
ecu and all....the only problem you might run into with this is the process
of getting an electronic fuel pump and the fuel rails to mount the
injectors...I dont know if you'll be able to use the stock intake but even
if you have to use a mustang/cougar plenum (preferably an '87 up plenum),
the truck will breath better and make more power plus you get tha added
benefit of using mustang hop up parts, including superchargers....all with
great idle quality and good mpg.
Just some thoughts...oh yeah, emoving the spout connector will also cut down
your total advance...this thing must be sluggish.

                                                Gannon

          "Gripping the wheel, his knuckles went white with desire...the wheels
           of his Mustang exploded on the highway like a slug from a .45...
           True death... 400 horsepower, maximum performance piercing the
night...
           This is BLACK SUNSHINE!"




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