high boost flutter / cant hold high boost issue
When the boost is set at over 25psi or so i get a flutter sound and the boost gauge starts jumper all over the place (up and down about 5psi). It sounds like the turbo is surging. I was thinking my wastegate isnt large enough to hold the boost pressure. I only have an old school tial 35mm with a .7bar spring. Could that be the issue? It holds fine at 20psi but after that i start getting this issue. I dont think i have any vacuum leaks that i know of, however i need to get a new wastegate gasket as mine is leaking a little. setup: tial 35mm .7bar spring apex'i avc-d boost controller garrett gt3082r turbo with s-cover & .63ar exhaust afi ramhorn manifold neptune rtp with 880cc injectors thanks, liam |
Re: high boost flutter / cant hold high boost issue (liam821)
maybe the blow off valve isnt holding the pressure
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Re: high boost flutter / cant hold high boost issue (y7turbo)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by y7turbo »</TD></TR><TR><TD CLASS="quote">maybe the blow off valve isnt holding the pressure</TD></TR></TABLE>
I have a tial 50mm bov with a 1bar spring in it. So i wouldnt think that would be it. liam |
Re: high boost flutter / cant hold high boost issue (liam821)
have you tried a larger wastegate spring?
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Re: high boost flutter / cant hold high boost issue (SOHC_MShue)
yeah up the gate spring or if that doesnt work time for a bigger gate
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Re: high boost flutter / cant hold high boost issue (SOHC_MShue)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by SOHC_MShue »</TD></TR><TR><TD CLASS="quote">have you tried a larger wastegate spring?</TD></TR></TABLE>
I havent, i suppose i can try it! Any other ideas? |
put in a stiffer wastegate spring https://honda-tech.com/forums/images/smilies/emthup.gif
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Re: (99B16Si)
I ordered a 1bar spring - ill let you all know if that fixes the problem! liam |
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