BOV not opening..
 

Alright so I have the greddy type RS. It worked great with the previous setup (14b).. Now I switched to a t3/t4 and external wastegate and its not working all of a sudden. I never messed with the adjustment until tonight and loosened it all the was out so its pretty easy to open.. Nothing. I changed vacuum lines and still nothing.. Any clue anyone?

Re: BOV not opening..
 

maybe you tightened it. or your vacuum source is bullshit.

its also possible you have a terrible boost leak. but, judging by your post, you know nothing about anything so in that case drink bleach and die.

Re: BOV not opening..
 

Just letting people know the changes made even though it could be irreverent. The vacume source has stayed the same. No leaks. No I didnt tighten it. I said I loosened it. Thats after I seen it wasnt opening. Could it be its possibly not making enough psi to open? 5.63 pound spring and reading at a little under 6.

Re: BOV not opening..
 

it should still open, check for boost leak

Re: BOV not opening..
 

Boost leak huh. I will check it out tomorrow. Any other suggestions?

Re: BOV not opening..
 

whats up with all these newbs comming on here blazing people for no reason?
the reason he ask the question its because he dont know, so why the dickhead response?

check you vac lines,
also retighten the bov a little, you might have it too lose where its is not closing and preventing you from building boost,
get your bov vac from the intake mani not the charge pipe or TB.
try those if it dont work get a different bov.
also check to make sure your wastegate is not leaking and preventing boost

Re: BOV not opening..
 

bov dont work on how much psi you have they work on vacum, a more vacum the easier the bov will open.

Re: BOV not opening..
 

Exactly, it doesnt matter if your making 5 psi or 50 psi the bov will open the same in vacuum, what vac source are you using??

look at the plunger when ur car's idling, if the screw is loose it should be open a little bit.

Re: BOV not opening..
 

About the vac lines all I can say is they are almost all replaced with a tad bit bigger. I just dont see why it would effect it. Vacume source is from the intake.. Its building boost because I can hear the fluttering of the blades turning backwards.. (compressor surge) .. Plus I seen it on the gauge when I had on there temporarily.

Re: BOV not opening..
 

igot the same problem...my greddy works fine with the setscrew halfway with only the smaller spring..but my ebay rfl is doin the same problem..and ive got 20 vacuum at idle with bre dataloggin

Re: BOV not opening..
 

Smaller spring? It sounds like your referring to the BOV but have to assume your referring to your wastegate.. Confused eather way though.. The screw part is good info though.. My ---- is still fluttering even with it almost all the way out..

Re: BOV not opening..
 

I am using a ebay greddy RS and I have to tighten it half the way for it to hold boost then again I run 23psi.
the downside is if you are a ricer and want to tell everyone that you are boosted it won't go off at low boost, but when if it blow off its a wicked sound.

Re: BOV not opening..
 

are you sure it wasnt holding boost. a bov has pressure comming from the bottom, and the top, but the spings gives added tension to the top so it should hold no matter what, even if the screw is out all the way you should hold boost no matter what.

Re: BOV not opening..
 

it will hold boost, but not at 23 psi on a sc61, even when I was using a blitz it would fall off if I had the spring too loose, say I set my boost to be 20psi at wot it will not maintain it if the setting is too loose it would fall off to 16psi the I tighten the spring and it will hold 20 all the way till I let off.

Re: BOV not opening..
 

You said you changed the vac line to the bov, make sure its not colapsing and sealing itself shut when in vac.

Re: BOV not opening..
 

The problem isnt holding boost.. Its getting the BOV to open..
Well I changed it to a bigger and thicker line so I dont see that happening but I will definately check for that.