Boost Flutter Wastegate Junk? Turbo SOHC
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Boost Flutter Wastegate Junk? Turbo SOHC
I have a cheap xs power wastegate and at full boost 24 psi it will flutter up and down 5 or so psi so i took apart my wastegate and inside the wg the gasket has a small hole that looked melted almost. I am wondering if that would cause me to flutter like that and if so maybe would a nicer tial wg eliminate the problem. I currently have a Big Blue Spring and a Small Blue spring in the wg and am going to get retuned in about a week jw some suggestions. Thanks
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definately a issue. cheap parts with cheap material with a higher failure rate. not to mention a bad reputation. Get a Tial wastegate and your problems will go away.
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Re: (RedneckRicer)
Thanks for the input but has anybody had the problem before and pinpointed the diaphram to be the source of the problem? ill probably just go by a tial and post my results...more replies please
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Re: (Garage 808 Hatch)
really damn i just went out and bought a brand new tial wg... how much boost r u running and does it seem like ur dumptube dosent stay open or is it after u hit boost u hear the flutter
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Re: (SinglecamMitch)
im running 27 psi now, it flutters under full boost, anything over 28psi. boost gauge fluctuates back and forth from 25-30psi. it could be tht im just over running the wastegate or the bov though. or could be comp surge
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well comp surge is under vac i believe and the flutter im getting sounds like yours at full boost... so u just turned it down till the flutter stopped?
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okay thanks im not putting it on and holding it to the floor until im on the dyno w a wideband but ill let everyone know if the tial upgrade fixed my problem
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Re: (SinglecamMitch)
Going from a ebay WG with a torn diaphragm and springs that usually bind in the housing to a fresh TiAl - it should fix most of your boost flucuations. But so might a new diaphragm. SSauto actually sells a thick nomex replacement for ~$15, TiAl sells theres for $50-80 IIRC and should fix.
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Re: (Garage 808 Hatch)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Garage 808 Hatch »</TD></TR><TR><TD CLASS="quote">im running 27 psi now, it flutters under full boost, anything over 28psi. boost gauge fluctuates back and forth from 25-30psi. it could be tht im just over running the wastegate or the bov though. or could be comp surge</TD></TR></TABLE>
what spring? it's probably too weak
what spring? it's probably too weak
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Re: (TiAL)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by TiAL »</TD></TR><TR><TD CLASS="quote">yep, get youself a 1.3bar or higher</TD></TR></TABLE>
what size wastegate spring do you suggest using with 24psi and a manual boost controller?
what size wastegate spring do you suggest using with 24psi and a manual boost controller?
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Re: (TiAL)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by TiAL »</TD></TR><TR><TD CLASS="quote">anything over a .9bar</TD></TR></TABLE>
ok, thats what im running... a large green spring (38mm)
i was just wondering why my boost gauge flutters like crazy when i hit full boost.. the hondata logs show boost holds pretty steady within a few hundredths of psi. i guess maybe just shitty gauge?
ok, thats what im running... a large green spring (38mm)
i was just wondering why my boost gauge flutters like crazy when i hit full boost.. the hondata logs show boost holds pretty steady within a few hundredths of psi. i guess maybe just shitty gauge?
#25
Re: (mike93eh2)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by mike93eh2 »</TD></TR><TR><TD CLASS="quote">
ok, thats what im running... a large green spring (38mm)
i was just wondering why my boost gauge flutters like crazy when i hit full boost.. the hondata logs show boost holds pretty steady within a few hundredths of psi. i guess maybe just shitty gauge?</TD></TR></TABLE>
probably...or there may be a slight leak in the boost gauge line
ok, thats what im running... a large green spring (38mm)
i was just wondering why my boost gauge flutters like crazy when i hit full boost.. the hondata logs show boost holds pretty steady within a few hundredths of psi. i guess maybe just shitty gauge?</TD></TR></TABLE>
probably...or there may be a slight leak in the boost gauge line
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