Re: Mega-Raptor (Level #4)
The SyTy valve body also has a unique calibration for our unusually LOW RPM shifts at WOT!! This is very critical for correct performance. But equally critical is the special 3-4 WOT upshift that is unique to the SyTy valve body and a few others. Without it, you'll be banging the revlimiter before you can make it through the traps. Not Good At All...
It is possible to correct these issues (I did it to mine, a 1985 totally NON SyTy 700R4) but I have never encountered a shop who knew how to do it. (I had to figure it out myself after one supposed "SyTy tranny expert" let me down in the worst way..)