strokin6L
Active member
Rotunda TTCF-7AR. Which is a heated unit and all I flushed were lines and cooler. And to repeat my builder works at the dealer, has 19 years of ford transmission experience. Has used the same parts in other 5rs without issues, only my truck goes through direct clutches. These other 5rs include 6.4s with stock high pressure/76mm turbos and stock fuel, 59/72 turbos and stock fuel, and 59/80 duel fueler and 60%. All of which make more power that comes on harder than my laggy 66. So we can throw the common denominator theory out the window. I've built my own fuel system, ported my own intake, plan to make my own up pipes, etc. so yes my self worth is pretty high in my head. And to get back on topic comparing whitey to warrens shop truck isn't fair. Ones streetable, using factory location on most parts iirc and 4 door. The other isn't legal to be on the street, has nothing in common with a factory 6.0, and is half a regular cab.
So, your trans builder works at the dealer and is the one who has built your trans the last 4 times? Seems like he's the common denominator then. Like I said have it built by someone else. I'm sure you'd be able to know whether or not tuning is the issue.