fluttering blow off valve?
#1
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fluttering blow off valve?
i have a SOHC vtec/turbo set up. D16y7/8 motor. .0020 mm thicker head gasket, ported head, 5 angle valve job, adjustable cam gear, high flow fuel pump, adj. fuel regulator, exhaust. When i boost, my blitz ssqv flutters when it purges. is it supposed to sound like that? I purge it at any boost level, and its the same..flutter flutter. <shrug>
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Re: fluttering blow off valve? (JDMB16ACRX)
I think its just the noise that it was meant to make...kinda like psshs shhs shhhs shhsh shs
edit: here I have this video of a gsx-r bike pushing 30 psi on my school webbysite...does your bov sound like this? This is what my Blitz ss sounds like...
http://students.salisbury.edu/~sas0661/gsxr.mpeg
RIGHT CLICK, THEN SAVE TARGET AS...
[Modified by B18EG6, 11:12 PM 10/23/2002]
edit: here I have this video of a gsx-r bike pushing 30 psi on my school webbysite...does your bov sound like this? This is what my Blitz ss sounds like...
http://students.salisbury.edu/~sas0661/gsxr.mpeg
RIGHT CLICK, THEN SAVE TARGET AS...
[Modified by B18EG6, 11:12 PM 10/23/2002]
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#8
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Re: fluttering blow off valve? (JDMB16ACRX)
Sounds like it's not opening soon enough and the turbo is backing up a little. Check your vacuum source. You might need to give the bov it's own source without anything tee'd in to it.
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Re: fluttering blow off valve? (JDMB16ACRX)
I used to have one it wouldnt open at all. I actually had to take it apart and relube it and it worked fine after that.
#11
Re: fluttering blow off valve? (drealboostedhybrid)
My vortech did that for months, tried ALOT of different methods of tight/loose... eventually I loosened it nearly all the way and now it sounds REAL nice, no more dead bird under the hood sound...
#12
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Re: fluttering blow off valve? (shadowdawn)
sometimes that fluttering is just the wastegate.. u might have ur spring in ur blow off valve too tight and it's not opening up.. i had the same problem.. i thto something was wrong w/ my bov until i loosened the spring.. it turned out the whole time i was hearing a wastegate..
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