auy_tong2 Posted April 12, 2010 Share Posted April 12, 2010 hi guys, i need help on my r33gtr, rb26, i used the right vaccum hose from the air chamber to the bov, already checked for leaks, but still my bov won't open, already adjusted my bov to full left turn, still won't... and also weird, i can't also hear my turbo sputtering.. when boosting.. question 1: i observed the vacuum lines of the bov when the engine is at idle... it suck a little pressure, is this normal? or it will only suck pressure when the throttle is sudden closed from reving hard? could be a airchamber problem? help. please..thanx Quote Link to comment Share on other sites More sharing options...
auy_tong2 Posted April 15, 2010 Author Share Posted April 15, 2010 hi guys, i need help on my r33gtr, rb26, i used the right vaccum hose from the air chamber to the bov, already checked for leaks, but still my bov won't open, already adjusted my bov to full left turn, still won't... and also weird, i can't also hear my turbo sputtering.. when boosting.. question 1: i observed the vacuum lines of the bov when the engine is at idle... it suck a little pressure, is this normal? or it will only suck pressure when the throttle is sudden closed from reving hard? could be a airchamber problem? help. please..thanx hello...anybody... Quote Link to comment Share on other sites More sharing options...
S130Z Posted April 15, 2010 Share Posted April 15, 2010 Where is your vacuum line connected to? Quote Link to comment Share on other sites More sharing options...
xska Posted April 16, 2010 Share Posted April 16, 2010 Hks ssq bov has very small barb, make sure your hose is reduce to correct size. And hose should have good vacuum at idle, unless you have big cam. Quote Link to comment Share on other sites More sharing options...
auy_tong2 Posted April 16, 2010 Author Share Posted April 16, 2010 Hks ssq bov has very small barb, make sure your hose is reduce to correct size. And hose should have good vacuum at idle, unless you have big cam. my vaccuum is connect at the vaccum air chamber where the manuals says/.... heres my setup Quote Link to comment Share on other sites More sharing options...
Oddmanout84 Posted April 17, 2010 Share Posted April 17, 2010 Check the orientation of that in-line valve that comes with the BOV. Shaped like a disc. It only goes one way. Quote Link to comment Share on other sites More sharing options...
auy_tong2 Posted April 18, 2010 Author Share Posted April 18, 2010 Check the orientation of that in-line valve that comes with the BOV. Shaped like a disc. It only goes one way. i already checked that one ... its still ok... the pressure inside the internetcooler is the one opening the bov right? and can .8bar boost can open the bov? Quote Link to comment Share on other sites More sharing options...
S130Z Posted April 18, 2010 Share Posted April 18, 2010 The BOV is opened by a combination of vacuum from the intake manifold as the throttle closes, and built up pressure in your charge piping. Try hooking your vacuum source up to your intake manifold instead of that vacuum chamber. Quote Link to comment Share on other sites More sharing options...
auy_tong2 Posted April 18, 2010 Author Share Posted April 18, 2010 The BOV is opened by a combination of vacuum from the intake manifold as the throttle closes, and built up pressure in your charge piping. Try hooking your vacuum source up to your intake manifold instead of that vacuum chamber. hmmmm could b a leak on my intake system... thats why it wont push my bov... Quote Link to comment Share on other sites More sharing options...
240Z_Master Posted April 26, 2010 Share Posted April 26, 2010 If it's an old BOV, is it a diaphragm problem? Quote Link to comment Share on other sites More sharing options...
awoz87 Posted April 26, 2010 Share Posted April 26, 2010 yeah pull the valve apart and check the diaphragm also, your running two of them? Quote Link to comment Share on other sites More sharing options...
S130Z Posted April 26, 2010 Share Posted April 26, 2010 Hey man, can you post any better photos of your setup? And can you include of pic of where the vacuum line is hooked up? I just installed my HKS SSQV3 and it works just fine. Is yours a true HKS? Quote Link to comment Share on other sites More sharing options...
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