Kevin Jewer
DSM Wiseman
- 1,464
- 277
- Jul 25, 2002
-
LaRue,
Ohio
It hangs open and causes all kinds of problems, especially the trans overheating in the lanes. It's not wilson's fault specifically, it can be an issue with all of the giant throttle bodies on 4 cylinder engines. The problem is that we have to close the plate so far to get a normal idle speed, to a point where they just didn't design the plate to fit the bore properly at that angle. It rubs and hangs up and starts to wear itself out. A V8 would have it open much more at idle and they don't have issues. Wilson (IIRC) told a mustang friend of mine that they recommend building up some JB weld on the back side of the throttle plate so it can be left further open at idle. Not something I want to bother with on a 500 dollar TB! On my car I kept my trusty 75mm unit and made my own adapter plate for it.