setup is
lsvtec
gsr cams
60-1 .82ar stage 5 wheel
sls ramhorn/38mm tial
hallman manual bc
3''dp/exhaust
im loosing boost...i build 17 psi till 7k or so then it slowly drops down as it revs out..down to 15 psi roughly..why is it doing this?..i did a boost leak check..there is no leaks at all and no exhaust leaks either...i have my comprsser housing tapped for the boost source on my manual bc..is this not rite?..is the bc doing this? on the wg spring(14.5 psi) i will only build 8 psi or so....any input would be great

 

My guess is, your loosing boost through your wg
Do you have the fire ring installed?

 

yes the fire ring is installed

 

wait a min....you have a 14.5 psi spring and only getting 8 psi??? something is very wrong then. boost leak or major exhaust leak or vac leak

 

yea it just recnetly done this when i switched my boost source from after the intercooler charge pipe to the compresser housing...now it will only build 8 psi off the wg spring...there is no leaks tho..i did a boost check and there is no leaks in the exhaust

 

sorry to thread jack but i have a tial WG44 what exactly is the fire ring? what it do and look like?

 

The MBC should get it's boost signal AFTER the intercooler. Sounds like your intercooler is much too small, which causes a lot of pressure drop. In short, you're getting 14.5psi before the intercooler, but only 8 psi after due to the restriction. If it's a spearco/garrett/precision/etc core, what is the HP rating?

If you are absolutely possitive there is zero exhaust or turbo/intake leaks, it sounds like a mistery. You have to know that even a small leak can create huge problems. The only other thing I can think of is you plugged the top of you WG, thinking you didn't need the hole. It has to remain open to free air.