major boost creep problems even after wastegate porting

[GstRacer]

well this is my setup i have a 16g ported wastegate ported polished evo3 mani and 3 inch turbo back and high flow 3 inch cat with VP 02 sensor housing and i'm still gettiong boost creep any other sugestions other then external wastegate???

 

[markGSX]

I went through the same thing and finally fixed it
http://www.dsmtuners.com/forums/showthread.php?s=&threadid=60495

 

[REDBLUR]

Pressure test all vaccum lines going to and from actuator.

Theres a start.

 

[crankbender]

Explain a little more to us about what the car is doing. When does it creep? Does it ever flatten out?

Take a look at this to see some basic ideas on what is causing the creep

http://www.dsmtuners.com/forums/showthread.php?s=&threadid=109324&highlight=finally+boost+creep

 

[GstRacer]

i also forgot to put that i have a 3 inch high flow cat in my DP

 

[GstRacer]

well the shop that i have it at is going to cut a hole between the wastgate side and the exhaust side of the turbo HOUSING thats what slowboy racing said to do to control the creep even more. They said to make a chanell between the waste gate side and the exhaust side so the wastegate opens and flows to both sides at one time what do you think about this

 

[Cesar]

Well, you got to ask yourself why you are getting creep. Is it that something is malfunctioning, or the gasses are finding it too easy to flow through the tubine, and the wastegate passege is insufficient. I think your huge ass exhaust (good thing) is most likely the cause. Porting helps some (wategate passage, turbine housing). getting rid of your manual boost controller tends to eliminate the delay in the reaction of the wastegate. (I'm not sure whether you got one.)
Give us more info

here you go, this should take care of it...
http://www.punishmentracing.com/frameset.html