I know what you are thinking...and yes i had a boost leak test to 25psi. Background of the story, i had ETS long route 2.5" piping with a synchronic dv...i just installed the short route 2.5" piping, a tial q, and a mini battery. I am running an EF4 speed density, 28 PSI. Again, all i did was install the piping, bov, and battery. Once i installed, my turbo started lagging pretty bad, hp dropped significantly, and psi dropped to 26. i tightened all the bolts i could related to the exhaust system, intake piping, IC piping, everything, and then got a boost leak test. The guy at Spec Ops said that at 25 PSI, if there was a leak, he would hear it. MAP said check the spring in the Tial, spring should be good, its the yellow 11 psi spring. I double checked the WGA and it can not be adjusted any more. I never race my car, only DD to and from work. I drive like a grandma, and the turbo is less than a year old. I am completely out of ideas and can't finish my tune until i figure out why the h-e-double hockey sticks my turbo is acting up.

Question 1: Is a 25 psi boost leak test good enough or should i bring it back and tell them go to 30?

Question 2: Is there anyway to check the WG flapper without unbolting the o2 housing?

Question 3: Has anyone had these issues???

Question 4: Can anyone help?? haha

 

Here are the graphs in VD...the blue and red lines are after install...you can see how much its lagging.

 

What are you using to control boost? Maybe it got adjusted some how...?

 

I'm using a grimmspeed ebc and its still responding. My tuner says possible bad gas scenario but I don't see how gas could effect spool that much.

 

Anyone else?

 

ttt

 

vacuum lines to your boost control system and BOV? check them all and ziptie them tight...

weird that it's passing a test. a small leak i'd expect a drop once spooled, not a loss of spool. that seems really weird

 

Wouldn't vaccum lines pop off in a boost leak test?

 

In case anyone was following this I figured I would update you all on the progress. I finally figured it out. When I originally had the car tuned I had a turn down instead of an exhaust. I recently put my exhaust back on and even though its only a test pipe I guess it was restrictive enough to take 2 PSI away from me and slow the spooling process. Learn something knew every day!