I have a 96 F250 with the 5.8l engine. It is the speed density engine, with the OBD1 computer. How limited am I on upgrades?

 

You're kinda limited, but you can get a tuner for it to handle all the mods. I think it's called a moates quarter horse. But don't quote me.

 

What do you consider mods? Headers? fancy intake tube? or heads, cam, stroke, compression?


Keeping the speed density, you can modify the chit out of it, but you will have to use a cam that produces good vacuum, so the map sensor can offer a vacuum range, translated to the computer in a way it understands. You can adjust for changes with larger injectors, calculated correctly of course, and use an adjustable fuel pressure regulator, along with a wide band. This wont be precise. To be more precise, youll either want something like the quarter horse or mass air, which, the mass air still needs to be tuned to be precise. Or there is aftermarket options for stand alone control.

 

Has anyone done a speed density to MAF conversion on a F series before? I know they are super popular with mustangs:

The Corral Tech

Pro-M Mustang Mass Air Conversion Wiring Harness (86-88) 5.0