I bought the car used got it a few weeks ago and we put a boost gage on it and im only hiting 11 psi. Nothing is wrong with the gage and the install was don properly. We did 2 boost leak tests found a leak fixed it and still 11 or 10 psi.
Wondering if anyone knows what is going on with it.
Also the turbo feels fine no play in it and spins freely.

 

check the intercooler piping, vacume lines, make sure boost controller is installed properly and make sure the gauge that you have that the vacume line is not pinched as well

 

i work at a proformance shop and we have been all over that stuff no leaks but i will look for a pinch, we were also thinking the wastgate. we specialize in the srt 4s and srt 8s so this new ground for us.
iv herd that it should be a 19psi spike is this right

 

also i dont have an after market boost controller
and no clue what the old owner had done to it

 

Is the car throwing any error codes?

10psi-ish is wastegate boost pressure. So you're wastegate is likely stuck open for some reason. The most common causes that I've experienced personally are that some line is pinched or loose (which you said you checked) or the wastegate solenoid has a loose connection. It's located under the stock airbox. Check that connection...I've had a reoccuring problem with mine. If the ECU thinks that connection isn't there it'll keep the wastegate open.

 

if you work @ a shop and are used to Forced induction.. this really should be a no brainier.

 

yea that was the next thought the wastgate sicking and we have never messed with the evo before its alot more advanced than a srt 4 but yes it is a no brainer im just tryin to see if anyone eles has had this problem so that i could troble shoot this alot faster
and no codes bein thrown
thanks for the input

 

I hate people like this you give them advise and then they answer you in a smart *** comment if use to forced induction and its a no brainer then why are you on evom for trouble shooting why don't you have your so called sop fix the problem learn how to ask question's comments nicer next time.

 

wow i didnt get smart wtf if u dont know dont post

 

thanks agian srcevo for the input

 

The car is running straight wastegate pressure. You need to hook up the stock Boost control solenoid. Just search in the HOW TO forumn for a good MBC install guide and that should have all the pics you need to understand it

 

thanks

 

Found the problem the wastgate solenoid had a broken niple and the old owner had what looked like the inside of a pen (tub that holds the ink) shoved in its place and the tip of it was melted shut, so i cut the tip off to open it up. Then put the car back together and went for a test drive, now i spike 15 holding 14 or 13 wich was a big improvment(i could hear the turbo wisle) so im going to have to replce the boost solenoid or get a mbc because the hole in that pen tube is alot smaller than the niple wich is holding it back.

thanks for the advice it saved me a headake
I was able to do this in the driveway