new BOV causes excessive high boost then no boost?

[PaintMunky468]

Ok, i did a search and found nothing like this problem...my mods are as follows:

* Evo III 16g gt turbo
* Extreme psi intake
* 3" turbo-back exaust (no cat)
* Greddy type-rs BOV

I just installed the Greddy type-rs bov. I took the car for a spin and it ran good, sounded good and solved a problem i had after installing the intake of the rpms dropping down after shifting into neutral. However, i glanced at the boost gauge i installed (autometer) and it was reading 20-25 psi!!!! Now, i have not messed with boost settings and do not even have a boost controller. I actually got it to almost 30psi in first gear, and wheels broke loose like crazy.

Now i figured it wouldn't hurt to do a boost leak check again just to see if a new leak had sprung. I tested it and found one coming near the bov and upper intercooler pipe, but couldnt pin point it, almost like it was coming from under the fuse box. I took the BOV out and looked at it, seemed fine other than the big flat part on the bottom being pushed up (probably happens after use). I put it back on and ran some air through the turbo again (out of an 80 psi air compressor). the gauge then read 3 psi of boost. I reconnected the intake and vacume lines and took it for a spin, no still no boost. Im lucky if i get it past 2 psi.

Im pretty sure my turbo is fine, because its new (only has about 500miles on it, if that.) and there is not alot of shaft play, and the turbine still spins freely. WHAT THE HELL IS GOING ON?!?!?!?! does god just hate my car or am i missing something, a BOV should not be causing amazing boost increases, then absolutly nothing .

 

[oldman]

1. Check and make sure the actuator arm didn't fall off.

2. 3 psi is no where near the desired test result. Complete the pressure test, which means 20psi for at least 30 seconds. Soapy water will help pin point the leaks.

3. Once you get the no boost issue taken care of, we can then move on to your original over boosting problem. One thing very important though, never let it boost over 18psi again under any circumstances.

 

[K_Hill]

Oh my 30psi.. I wouldn't let it boost that anymore with the stock fuel injectors and ect.

 

[PaintMunky468]

no what i was tryin to say is that it wont go past 3 psi durig the test. I wanted to take it to 20psi during the pressure test, but it wouldnt move past 3.

And the 30 psi wasn't intentional, i floored it for the first time and thats what happened, it scared me too. Now i don't open the throttle too much for fear of doing damage to the valve train etc.

Thanks for the help guys, but have you heard of a problem like this before, is there any other tips or should i take it to my local DSM shop and have them fix it?

 

[oldman]

no what i was tryin to say is that it wont go past 3 psi durig the test. I wanted to take it to 20psi during the pressure test, but it wouldnt move past 3.

That is exactly how I understood it, reason why you need to go back and finish the test.

 

[PaintMunky468]

do you mean seal the leak? Because I cannot pin point it due its weird place. I don't understand how I can finish the test if when I run air through it it wont boost past 3 psi. There is nothing left to finish, I tryed it 3 times, each time i ran air through it, the gauge went to 3psi and STOPPED MOVING. so I cannot pressurize it past 3psi.