Raptor BOV Question
04-04-2006, 11:36 AM
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Raptor BOV Question
My question is about the sound my BOV is making. Under spirited acceleration I hear a ssssshhhhhhh sound then when I let off the accelerator I hear a louder PSSSSHHHHHH sound. Is that normal? I thought you shouldn't hear any sound from the BOV until you let off the gas then it releases the excess gas. I have the adjustment screw all the way in so it should be holding the boost, right??
04-04-2006, 11:42 AM
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Originally Posted by G3.5T
My question is about the sound my BOV is making. Under spirited acceleration I hear a ssssshhhhhhh sound then when I let off the accelerator I hear a louder PSSSSHHHHHH sound. Is that normal? I thought you shouldn't hear any sound from the BOV until you let off the gas then it releases the excess gas. I have the adjustment screw all the way in so it should be holding the boost, right??
04-04-2006, 11:46 AM
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Originally Posted by G3.5T
My question is about the sound my BOV is making. Under spirited acceleration I hear a ssssshhhhhhh sound then when I let off the accelerator I hear a louder PSSSSHHHHHH sound. Is that normal? I thought you shouldn't hear any sound from the BOV until you let off the gas then it releases the excess gas. I have the adjustment screw all the way in so it should be holding the boost, right??
if you have it adjusted all the way in, you need to unscrew it a bit! You could cause some major compressor surge with the setting that tight.
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04-04-2006, 12:19 PM
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Originally Posted by Sharif@Forged
Are you certain the shhhhhh sound isn't the normal sound of the turbo spooling up? The TN kits make a lot of induction noise, which I like. 
04-04-2006, 12:35 PM
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Originally Posted by G3.5T
I guess it could be from the induction noise. It is noticably audible but I really don't have another Z or G to cmpare it to with a similiat set up. My boost gauge is showing that I am holding boost. I guess if it was leaking the needle would drop under acceleration. If you guys are hearing the same thing then I guess it is normal.
04-06-2006, 11:51 AM
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Just looked at my BOV and noticed that the outer port (closes to logo and drivers quarter panel) is routed to my upper plenum. OK I pretty sure that is correct. BUT there is another port right next to it (closest to engine) that is empty. I looked in the port and there is a small hole. Should that hole be plugged or is it suppose to be like that???
04-06-2006, 11:52 AM
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Originally Posted by G3.5T
Just looked at my BOV and noticed that the outer port (closes to logo and drivers quarter panel) is routed to my upper plenum. OK I pretty sure that is correct. BUT there is another port right next to it (closest to engine) that is empty. I looked in the port and there is a small hole. Should that hole be plugged or is it suppose to be like that???
04-06-2006, 11:53 AM
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Originally Posted by MIAPLAYA
No that port is fine. It doesnt have to be plugged. Mines been open for like 20k miles now...
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