Forced Induction Custom FI Setup Questions

my bov stays open!

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Old Dec 20, 2004 | 07:13 PM
  #1  
2stockrocketz's Avatar
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Default my bov stays open!

help! i have a bov(i think could be ebay type) that bought with the turbo "kit" took so long to get turbo installed(bout 7 months) but at first it was hard to push open(by hand) a friend cleaned it out(got easier to open).... well when we 1st test drove turbo was boostin @9psi so frien cut spring(so bov would open easier) to let it open at 5psi...well when i got home(150miles) i was checkin out turbo(cuz it great to have a turbo) and i looked at the bov and it was stuck open. so what could happen if i still drive it like that? what could of happend? im still new please help me put my mind at ease!
Old Dec 20, 2004 | 07:52 PM
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turborolla94's Avatar
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Default Re:my bov stays open!

some1 correct me if im wrong, but i think most bovs stay open at idle. try holding the trottle a little bit and watch the bov and c if it closes...if it doesnt close, i say new bov
Old Dec 20, 2004 | 07:58 PM
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Default Re:my bov stays open!

if it's stiff enough it'll be closed at idle but for the most part it should be open in vac
Old Dec 20, 2004 | 08:02 PM
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Default Re:my bov stays open!

why the ---- would you cut the spring to try and controll your boost to 5 psi?Thats what the wastegate is for!

unless its a dual diaphram bov it will be open at idle.
Old Dec 20, 2004 | 08:35 PM
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Default Re:my bov stays open!

Originally Posted by djfob
if it's stiff enough it'll be closed at idle but for the most part it should be open in vac
vac in idle is 20psi. that'll open it up a little atleast. mine stays open a little in idle and when i open the throttle up by pulling the cable with the hood open, the bov closes as soon as vac is gone, just a little throttle.
Old Dec 21, 2004 | 01:21 AM
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Default Re:my bov stays open!

Originally Posted by trebor_nordap
vac in idle is 20psi.
i think you mean 20 in.hg not psi because that is physically impossible.
Old Dec 21, 2004 | 03:04 AM
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hotrex's Avatar
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Default Re:my bov stays open!

thats what u get for using a piece of ---- bov.. get a 1g dsm bov
Old Dec 22, 2004 | 11:01 AM
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Default Re:my bov stays open!

yeah i know i should get a better blow off(and im looking, check out want to buy section) as for cutting the spring ghetto-d did (he's on hmt) cuz we were in a bind, and its not "open at idle" it is open when the car is off... so i take it that the bov must be bad
Old Dec 22, 2004 | 11:09 AM
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Default Re:my bov stays open!

Originally Posted by 2stockrocketz
help! i have a bov(i think could be ebay type) that bought with the turbo "kit" took so long to get turbo installed(bout 7 months) but at first it was hard to push open(by hand) a friend cleaned it out(got easier to open).... well when we 1st test drove turbo was boostin @9psi so frien cut spring(so bov would open easier) to let it open at 5psi...well when i got home(150miles) i was checkin out turbo(cuz it great to have a turbo) and i looked at the bov and it was stuck open. so what could happen if i still drive it like that? what could of happend? im still new please help me put my mind at ease!
What the ---- are you trying to say? Jesus ------- christ!
Old Dec 22, 2004 | 11:28 AM
  #10  
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Default Re:my bov stays open!

i bought the blow off about 9 months ago (and it was really stiff) but i just used it(so it has been to long since i bought, to make a complaint) so for know i had to find a way to make it work(thats why the spring was cut) but the bov stays open when the car is off(and it was open the whole time i drove it home(bout 150miles) so i need to know how bad is that on the engin/turbo? i hope that was a little clearer...



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