wanted to share somehting with u guys, i have a dp, mp, intake and m2 stage 3 ecu. after i put the midpipe i would spiek to 14-15 lbs then stay at 13-14 lbs. i did not have any pills in my lines, my car is a 94 my pills i built in the nipples on teh actuator themselves. atelst thats what people told me. so this is what i did to fix my boost problem. when i installed this with both valves closed i got a 7-5-7 boost pattern after playing some with teh valves i got to 10-8-10 and no spiking. i was doing this on a cold night..on hot days i get 9psi of boost.

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mine

 

also wanted to add, i disconnected the wastegate and prespool solenoids from controlling any boost, the lines goign to those solenoids fromteh actuators are long and i believe this is the problem and that is why peopel see spiking because the wastegate cant open early enouf when it sees teh boost after the car has been modified. i did not see any lag in teh boost buildup, i still get teh full 10 psi before 2500 rpm or so. i still ran a line to the actuators from a manifold for them to see boost, because i am not exactly sure how the oil injectors operate, vacuum/boost?, the way its routed now will still allow for the positive pressure inteh manifold get to the solenoids and teh oil injectors.
after installing the neede valves i closed them completely and that is when i saw teh 7-5-7 boost pattern then slowly started to open both valves untill i got the desired boost pattern.
the lines goign to the wastegate and prespool actuators are very short and the lines i used for the needle valves are the stock lines that connect to teh metal tubing that leads to the solenoids so as soon as the boost starts building your wastegate will react immidiately. if any of your belive taht a ball and spring will be better off to open the wastegate at alittle later time to try to get teh turbos to spool faster u can try that out, but like i said i didnt notice any lag in the gettign to the desired boost level. i see full boost before 2500 rpm.
for now i have the valves just hangign tehre on the hoses untill i make some sort of a bracket to have them rigidly mounted.
this allows me to keep the stock boost level untill i upgrade to a bigger intercooler and then i can turn it up some

here is a pic of what it looks like

 

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Wow thanks! Pictures are so incredibly helpful. I very much appreciate the time you spent in preparing this.

-Jon

 

let me know how it works out

 

Are those pics available? They don't show up...