Warm Start Problem

[armor611]

I am SD tuning a 4.8 turbo setup. I am having trouble with warm starts, after it sits for 30 minutes or more but before it cools down all the way. Cold starts and hot starts are great. I have removed some fuel at startup and added air but have not been able to get it to start right up when warm. It will start but turns over for a long time before kicking off, if you give it a little throttle it will kick off sooner. The cam is a Summit stage 2 turbo (226/230 Dur., 113+4, .600/.575 Lift). Tune file is attached, any help would greatly be appreciated.

[blindsquirrel]

What is the fuel pressure at the rail when it won't start, compared to when it starts OK?

What is the fuel system? What pump, what regulator, any check valves added anywhere?

[armor611]

I check it today, has 50 psi of fuel pressure at the rail when it takes a long time to start and when it starts right up.