ganghyung

iTrader: (5)

hi I am trying to DIY boost leak test. does anyone know which location I should start to hook it up? and what diameter should i use? I have searched alot but there is no one for evo x. I made a two inch tester

ganghyung

iTrader: (5)

I hooked it up to UICP, and air was entered constantly until 25psi. it slowed down to zero. I did several times but i heard anything from there. but my boost still peaks 13 psi with no tapering. is there other restrictors to raise the boost level such as boost pills or Solenoid?? I am using AP stage 1.

Bighec

iTrader: (9)

I've heard the best place to hook up the is the turbo inlet, and other people on the forum have told me it is 3 inches.

onyx1121

iTrader: (2)

My understanding was that you need to take off the intake and hook it up (i.e. turbo inlet). This is what I was planning on doing when I finish building mine.

Sorry, I think it is 2.5 inches, not three. The intake reduces down in size when it gets to the turbo. Someone correct me here if I am wrong.

itznoraa

iTrader: (5)

yupp use the turbo inlet, and take a spray bottle and put soapy water in it. When you spray the connections, if there is a leak...it should make bubbles.

linjy2

iTrader: (4)

turbo inlet and its 2.5"

i just did a boost leak test this weekend.

I found out the stock bov leaks at 27psi. at least for me it does.. i needed to boost 30psi+

onyx1121

iTrader: (2)

So you are saying don't pump in more than 27 psi, or it leaks out anyway?

murlo26

iTrader: (9)

The factory bypass valve varies pretty widely from Mitsu, its the same one from the Evo 9's. Some will hold 33psi, others only 25-26.

You can crush your bypass valve to make it hold more.

onyx1121

iTrader: (2)

Should I just search for a thread on that?

delkat

iTrader: (2)

i heard there is an o-ring in the turbo oil line that can get displaced if you pressurize the crank case too much. Has anyone experienced an oil leak after doing a boost leak test?