I just purchased a 5.0 EFI engine and AOD transmission from a 1989 Lincoln Town car, and I want to convert from EFI to carb. I know I would have to change the intake and put on the carb, but what else must I do? What about ignition/distributor? Any good articles on subject? I want the engine to run correctly.
thanks in advance!!
James Woods (dopedawg)
1956 Ford F100 longbed
1996 Ford F150 XLT 4x4
2003 Crown Victoria PI (my home away from home)
LxMan1 is right here. You will need ignition.... either a factory setup, point Dist with Pertronix, Duraspark, MSD (id use the no vac advance one and box) or the DUI. DUI is usually the best because unless you want a MSD deal, the DUI with the integral coil only needs a keyed hot to operate, and is usally less than the MSD probillet, 6AL box, and blaster HVC coil you will need to run on the street.
Id recommend using a 570 t0 600 Holley for street. The entry level 1850C, which I actually like and use on my rig, is perfect. I even dialed mine in with a FAST and it was dead on out of the box.
Then comes the fuel situation. 5.0s use a electric fuel pump. Call your friend up at painless and get the electric fuel pump relay setup, for safety, and go with a Holley electrical pump and regulator.
The 5.0 does not have the cam eccentric and therefor will not run a mechanical fuel pump without bolting one on. The electric pump will allow you to drop that puppy in without cracking open the timing cover, which is burried by the serpentine stuff.
That will get the engine running. No help here on the AOD. Sorry
FWIW.. every EFI motor I have taken apart has the mechanical fuel pump eccentric bolted to the timing set.. not sure why that is. If you have the complete EFI motor there wil be an L bracket on the TB holding the throttle cable and TV cable adjusters, you should be able to use this with the carb setup. The TV cable adjustment is critical to proper function of the tranny so it's manditory it is present and properly set.
I just put a E303 cam in my 88 Mustang and it has no fuel pump eccentric in it. This was the first time that the timing cover has been off in 163,000 miles. I bought it new
Double roller chain wasn't all that loose, but I replaced it anyway.
Id recommend using a 570 t0 600 Holley for street. The entry level 1850C, which I actually like and use on my rig, is perfect. I even dialed mine in with a FAST and it was dead on out of the box.
A 570cfm carburetor on a small 302 in a heavy truck? According to the carb cfm formula, that is too big of a carburetor to run.
302 x 5,000rpm / 3456 = 437cfm, and that is with 100% volumetric efficiency!
Is the 302 better suited with the 570cfm or 600cfm carburetor for some reason?
A vacuum secondary carb will only open as much as the engine can use when properly tuned with the correct secondary spring. A 600 is factory on 83-85 Mustng GT's with a 302. They also work well on a 460.
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LxMan1 is right here. You will need ignition.... either a factory setup, point Dist with Pertronix, Duraspark, MSD (id use the no vac advance one and box) or the DUI. DUI is usually the best because unless you want a MSD deal, the DUI with the integral coil only needs a keyed hot to operate, and is usally less than the MSD probillet, 6AL box, and blaster HVC coil you will need to run on the street.
