My GVR4 Suddenly Not Boosting PAST 10PSI!! Any suggestions???

[1990ggsxnj]

You're running the Valve to atmosphere correct?

 

yes

 

[1990ggsxnj]

I would get another one and do another boost leak test.

 

It wasnt leaking during the boost leak test, it was just not holding vacum. Is it suppose to hold vacum or no?

 

Okay so I have a small 16g wg but it seems the angle is off. When the wg is off, the arm is easy to pull but when I bolt in on the turbo the arm doesn't have any play at all..trust me I've pulled my arm on old wg w. It on the turbo no problem...is there really a diff w. Wg arm from evo3 16g GT and small 16g wg??? Thanks!

 

[TurboTrader]

Evo III 16g GT?!? This is an Ebay knock-off, or did you phrase that wrong?

If it is an E-bay WGA, that would say lots. You never know what tolerances they are built to, or what vacuum or boost would come into play to make them work properly, or at all, or...

I almost guarantee that is the issue, or the turbo itself if it is a knockoff.

 

Nope this a turbocharger.com turbo, the ebay knockoff sh*t has 16g etched on the plate of the turbo. Turbochargers.com has the best flowing 16g they were only seling for about a year until slowboy racing sued them.