crack in wastegate tube what would that cause
09-18-2004, 01:00 PM
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crack in wastegate elbow what would that cause
im running a revhard manifold and a 40mm hks W/G and on the elbow from the manifold to the W/G theres a small crack thats spreading what would this cause
anything noticeable sense theres a boost leak im just curious.
anything noticeable sense theres a boost leak im just curious.
09-18-2004, 01:32 PM
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Re: crack in wastegate elbow what would that cause (ghettochild)
Before the wastegate, it may cause you to over boost, if the exhaust gasses don't get to the wastegate, it will not open at the right time.
Not to mention that your wastegate may also fall off..
Not to mention that your wastegate may also fall off..
09-18-2004, 01:52 PM
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Re: crack in wastegate elbow what would that cause (m R g S r)
You should make a brace for the wastegate. My friend had the same problem with his wastegate breaking off (HKS WASTEGATE).
09-18-2004, 05:01 PM
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Re: crack in wastegate elbow what would that cause (m R g S r)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by m R g S r »</TD></TR><TR><TD CLASS="quote">it may cause you to over boost, if the exhaust gasses don't get to the wastegate, it will not open at the right time.
</TD></TR></TABLE>
?
Umm, wouldn't it be the other way around. The turbo could suffer from slower spool times because of the exhaust leak. The wastegate opens by referencing boost pressure, not exhaust gas pressure.
</TD></TR></TABLE>
?
Umm, wouldn't it be the other way around. The turbo could suffer from slower spool times because of the exhaust leak. The wastegate opens by referencing boost pressure, not exhaust gas pressure.
09-19-2004, 03:14 AM
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Re: crack in wastegate elbow what would that cause (ghettochild)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by ghettochild »</TD></TR><TR><TD CLASS="quote">so that would be like what loss in power </TD></TR></TABLE>
Possibly, or just slower spool up. It's according to the size of the crack.
Possibly, or just slower spool up. It's according to the size of the crack.
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09-19-2004, 03:40 PM
#9
Re: crack in wastegate elbow what would that cause
so then whats then general opinion here, I see one person saying it would cause over boosting and one saying otherwise?
obviously it should be fixed but curious what the resulting situation with building boost would be.
obviously it should be fixed but curious what the resulting situation with building boost would be.
09-19-2004, 03:46 PM
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Re: crack in wastegate elbow what would that cause (twkdCD595)
I'm right, obviously 
Think about it...the wastegate relieves exhaust pressure off of the turbine in order to control boost pressure by maintaining the compressor's speed. If there is a crack before the wastegate, then excess exhaust is being relieved and not being used to spin the turbine and in turn the compressor. Just imagine if the wastegate came completely off...I'm thinking that overboosting wouldn't be a problem there.
Think about it...the wastegate relieves exhaust pressure off of the turbine in order to control boost pressure by maintaining the compressor's speed. If there is a crack before the wastegate, then excess exhaust is being relieved and not being used to spin the turbine and in turn the compressor. Just imagine if the wastegate came completely off...I'm thinking that overboosting wouldn't be a problem there.
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