Don't really know. I guess untill it runs decent unfortunately, I will have to order a boost controller and wait on it to get here. I'm kind of thinking about unhooking my waste gate references line. That should double my 4lb spring, correct? It runs around 4.5lbs now and spikes up to 7ish. Hopefully the spikes will clear up with boost.

 

Got my boost controller in and turned it up a few pounds. She hovers around 6.5psi-7.5psi. Feels like a whole new truck. Thanks for the help everyone. Very happy with the truck right now. Still got my boost spikes and some fine tuning to work out. Then I'm sure a meth kit and more boost will come!

 

Any updates on this? Have you thought about installing a back pressure gauge to help determine shifts?

 

Ran a few people in mexico, and would guestimate my 1/8th mph time at around 85mph. The best comparison I can come up with right now. I will have to get some real comparisons when I get some tires. I feel this mph is OK, but lacking.

That is a great idea on back pressure test. The butt dyno really shows this thing fall past 6000rpms. I really think my 5800 shift points are too late at 8psi.
The problem is my cam also comes in late. Around 4000rpms. I could put a stall converter I'm it to keep it from being a dog off the line, but it will still fall off up top.

Basically, I've decided its my cam,converter,turbo combination. But, I haven't found the most cost effective way to fix it.

 

I think I would lean more toward a better suited cam than converter...

 

I've got a stock cam sitting here although, I'm sure I could find a better suited turbo cam for use with the stock converter

 

Got around to swapping my stock cam back in it. I was honestly bored on a Sunday so I figured why not. I'll keep y'all posted. Still got some tuning to do as of now.