WTF is the deal with this thing???

Got my car back on Friday night. My numbers where very disappointing. I made 320whp and 345tq at 5psi 11.5AFR. On the dyno I was only making 5psi. However on the road my boost gauge said was peaking at 9psi at 10.5AFR. I must say my car felt extremely strong.
So, on my way home i was playing around (slowing down then gunning it etc…) and I slowly started to loose power after 4500rpms. I got to a straight stretch with little traffic and I gunned it in 4th gear and watched the boost gauge. I pulled strong up to 4500 rpms, then I would go from 9psi to 1 or 2. Obviously this is not good.
Sat, I take it back to the shop and I am told I need a new actuator spring. Does this sound right? What is the deal with them anyway? Is this normal. has this happened to anyone else? will the a new actuator spring fix it or is there a better fix?


these are my mods. APS Single Turbo, APS 2.5" Exhaust, APS Plenum, Greddy Oil Catch Can, and Zeitronix AFR, Boost, and EGT

Please help.

Thanks guys.

 

BUMP!!! anyone? anyone?

 

I wish I could be more helpful, but I believe GRD sells a forged actuator that isnt too much more expensive.

 

hmm, and thats with the APS single turbo exhaust huh? kinda strange, i have seen one actuator spring that did go bad, but only that one. forge motorsports makes them for our kit for 150. call and talk to luis.