I have a 1994 SVT Lightning engine (EFI 351W) complete with computer and wiring harness that I am putting into a '68 Mustang coupe. My mechanic tells me that the computer will balk because I'm not using the AOD tranny. What do I need to do to make this computer ignore the fact that there's no AOD tranny? Any suggestions?
Thanks! Thomas
Your 94 did not have an AOD. It was in front of an E4OD if it was an automatic. All of the truck 351's from '90 thru
96 used the E4OD if auto. The AOD(E) would never handle the thing. I do not recall if the Lightnin' ever came with a 5 speed but, a 5 speed ECM would be the ticket. The next easiest way would be to use an ECM from an earlier model that had a manual trans. There are also custom chip burners out there that will build you a setup for yur ECM. This would be an add-on between the ECM and the 60 pin connector. You might want to check with Baumann Brothers in Anderson, SC. They have a lot going with auto but, may be able to either help you or steer you i nthe right direction. You will also need a matching wire harness unless you are will to expend a lot of patience with a couple of wiring diagrams to get it right.
Very good info, thanks a lot!
Thomas
I know nothing about the E40D tranny. Assuming it will fit in the transmission tunnel, would it make sense to buy it from the same wreck I got the motor from and put it into the Mustang? As a truck tranny, would it drive correctly in a Mustang (i.e. gearing)?
The yard wants $700 for it. Is it worth it?
Thanks a bunch!
Thomas
The E4OD would be a healthy trans for it in the "Stang. The E4OD is loosely based on the C6 3 speed which was just about bulletproof. If you plan on regular thrashing at the strip, it should be beefed and updated as would be the case with any other stock trans. It has been used quite successfully in certain types of racing - especially offroad racing. The gearing is very close if not identical to a C6. 4th is about .7:1 which means you could easily use 3:73 or lower rear gears and still maintain a decent cruise RPM. Again, Bauman Bros. would be a good source of beefing parts if you decide to go that way. I have used TPU here in Atlanta as a source of parts to build mine but, they are not real deep into the fullon performance parts for it like some others.
Another possibility for your ECM I had forgotten is that Ford built a short run of about 248 '93 Mustangs with a 351W very similar to the Lightnin' engine. IIRC, they were conservatively rated around 320HP with near identical internals and, with no emission certification. They all had a 5 speed trans as they were built for the race circuit and sold only to licensed racers (oh, yeah! Torque everywhere by the bucket fulls!). Ford Motorsport at one time had the ECM and wiring harness for the thing listed for service. For that matter, Motorsport has been known to pass out some good tech info for this sort of thing if nicely asked. Sorry I do not have their support info number.
Good luck Lugnut
"" wrote: > I have a 1994 SVT Lightning engine (EFI 351W) complete with > computer and > wiring harness that I am putting into a '68 Mustang coupe. My > mechanic > tells me that the computer will balk because I'm not using the > AOD tranny. > What do I need to do to make this computer ignore the fact > that there's > no AOD tranny? Any suggestions? > > Thanks! > Thomas
What is the PCM code? I can delete the trans info and you will have no problem running an AOD behind it.. The E4OD will not fit without MAJOR hammer and fab time plus the weight..
Tony G
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