I had a guy offer me 2 Lincoln town cars with 5.0 F.I. engines. One's a 86 the other is a 88. Would either one of these be good for a FI swap? I can have all of the computer stuff with the harnesses. The frames are rusted out and he is going to scrap the cars, and he said I could have the motors if I wanted them. I don't know much about the F.I. swap or new computer controled cars. So are these engines "Hot Rodable" or are the sensors the type that won't let you use differant cams and such? Thanks Russ
Take them and the tranny's as well. The '88 is very hot roddable. You may want to get the EFI 7 computer (ECM) off a Mustang GT. It's EFI uses a mass airflow sensor, whereas the ones in the Town Cars, Crown Vics, and Grand Marquis were speed density. PM me for the difference if you don't know. A 5.0 is always a good base engine to start with. Just my 2 cents worth.
So, If I get the 88 engine and trans, I should take the wiring and the computer? Then shop for a computer out of a "Mass air" car? So what are the differances between a "Speed density" and "Mass air"? Can a speed density engine be made into a Mass air flow engine by swaping a few minor parts? So the 86 is a roller cam also? Maybe I'll take the 86 engine and put a carb on it? Thanks for the help. Russ
If you want to add factory style EFI, I would definitely take the entire wiring harness. This is what I used as the basis for mine(harness out of an '86 Grand Marquis). The EFI that I have was originally a speed density setup, and I successfully converted it last summer using a kit...can't remember where I got it offhand, but I remember that there were several sources for kits like these. You could probably also get what you need from a junkyard MAF car. You need a computer from a MAF vehicle, the MAF sensor and wiring harness(I got these in the kit). I seem to remember there were also a couple wires that needed to be switched around at the connector leading into the EEC computer. There were a couple minor things I also dealt with because I was using this setup on my '77 302 instead of a later model 5.0 motor, but the changeover was pretty easy. The difference between MAF and SD has been discussed more thoroughly in past threads, but basically boils down to this: SD calculates the engines air-fuel needs using a MAP (measures the air pressure in the manifold)sensor(along with engine temp, etc), and MAF uses a sensor to measure Mass Air Flow into the engine to more accurately calculate the air-fuel needs...
Russ, while not 100% sure, i'm fairly certain that those are not the high output 5.0's. If they are the HO versions, the 88 should be good to go. At the very least, the 86 one will have the crappy e6 heads, if neither is a ho engine, both will have those lousy heads. Mass air is a must if you are running a healthy cam. Nitrous and even superchargers can be often run without converting to mass air. You can do a lot with a speed density setup before you have to convert.
and...the speed density is usually .1-.2 quicker in the 1/4 due to less intake tract restriction (no MAF sensor) I've got an entire '86 SD system out in storage waiting for a donor car to play with. Even thought about converting to MAF and turbocharging the mustang, but the way it's running...I aint touchin it!
Some of those lincoln motors were roller cams and some were not. i have three from lincolns and crown vics and only 2 were roller. All three came from 87/88 models. Go for the roller cam if you can much more streetable profiles with way better low end torque. Good Luck Keep on MAVERICKING.
