Yes, it is advantages. The 5 is a big development from the 4. But to go through a changeover from 4 to 5, with all the money and job involved to do that, I'll say it isn't worth it. The 4 does the job its intended to do in a great way, if it's tuned/chiped correctly. If you are going to change the whole thing (engine/transmission/EEC), then it's worth it. To do something everybody hasn't done yet is always worth whatever it takes.
The only time the 5 should be used (IMO), is if you are going to use an engine wich came originally with the 5. The 5 supports distributorless ignition, coil packs/coil over plugs and SEFI. I don't think you'll find any 4's that do that, so it'll be a massive electric/electronic rebuild. Ask me, I'm up to my knees in wires.
<font size=-1>[ This Message was edited by: Doc on 1/4/03 3:04am ]</font>
Hey Doc, the '92-'95 4.6 engines are DIS and still use the EEC-IV system. Also the early '90s 2.3 4cyl in the Mustangs & Rangers run a dual plug DIS system using the IV system.
1988 Turbo Coupe...5.0 Conversion
NA [email protected]/90 Shot 12.23[email protected]
<font size=-1>[ This Message was edited by: TurboCoupe50 on 1/4/03 2:47am ]</font>
On 2003-01-04 10:53, 392Bird wrote:
The V also was required to use with the electronic controled transmissions, and to monitor the cats. Thats where the 2nd set of O2 sensors comes in.
Begnning with the '87 automatic Turbo Coupes, there was some transmission controll in the EEC-IV systems(overdrive and converter lockup). In '92 EEC-IV systems were preformng all the shifts in the AODE automatics (Crown Vic, Grand Marquis and Town Car).
EEC-V is OBD-II. I great system for stock type cars but makes it harder to modify
( read that as more expensive). It is when all the manufacturers got their computer systems "talking" the same language. If you can fix a Ford, you can fix a Toyota.