Greddy Turbo Won't Hold Boost
04-29-2004, 05:02 PM
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Re: Greddy Turbo Won't Hold Boost (Quad-Damge)
What's your vacuum line setup? And what's your boost gauge read at idle?
For Greddy turbos, I've found this setup to be more beneficial:
-cap compressor source
-run WG directly to FPR
-run BOV to brake booster
-run boost controller/boost gauge off of cruise control
That's how I have it set up, and I've had great luck with it.
For Greddy turbos, I've found this setup to be more beneficial:
-cap compressor source
-run WG directly to FPR
-run BOV to brake booster
-run boost controller/boost gauge off of cruise control
That's how I have it set up, and I've had great luck with it.
04-29-2004, 05:21 PM
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Re: Greddy Turbo Won't Hold Boost (Quad-Damge)
Had you tried looking at all the lines and checking if there is a tear in them....
My cousin had a similiar problem and turned out it wasthe vacuumm like to the wastegate was torn.
Jon
My cousin had a similiar problem and turned out it wasthe vacuumm like to the wastegate was torn.
Jon
04-29-2004, 06:07 PM
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Re: Greddy Turbo Won't Hold Boost (boostincoupe)
[QUOTE=boostincoupe]What's your vacuum line setup? And what's your boost gauge read at idle?
For Greddy turbos, I've found this setup to be more beneficial:
-cap compressor source --- no prob's here
-run WG directly to FPR --- You splitted the line between the vaccum sources and the FPR and runned the additional line to the wastegate ?? is there a specific reason why you choosed the FPR vacuum sources ?
-run BOV to brake booster--- I did that and now my BOV is screaming like crazy !
TiA
Kranked
For Greddy turbos, I've found this setup to be more beneficial:
-cap compressor source --- no prob's here
-run WG directly to FPR --- You splitted the line between the vaccum sources and the FPR and runned the additional line to the wastegate ?? is there a specific reason why you choosed the FPR vacuum sources ?
-run BOV to brake booster--- I did that and now my BOV is screaming like crazy !
TiA
Kranked
04-30-2004, 07:13 AM
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Re: Greddy Turbo Won't Hold Boost (kranked91dx)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by kranked91dx »</TD></TR><TR><TD CLASS="quote">[QUOTE=boostincoupe]What's your vacuum line setup? And what's your boost gauge read at idle?
For Greddy turbos, I've found this setup to be more beneficial:
-cap compressor source --- no prob's here
-run WG directly to FPR --- You splitted the line between the vaccum sources and the FPR and runned the additional line to the wastegate ?? is there a specific reason why you choosed the FPR vacuum sources ?
-run BOV to brake booster--- I did that and now my BOV is screaming like crazy !
TiA
Kranked
</TD></TR></TABLE>
I T'ed off the vac. line for the FPR from the intake mani. and ran the WG line there.
For Greddy turbos, I've found this setup to be more beneficial:
-cap compressor source --- no prob's here
-run WG directly to FPR --- You splitted the line between the vaccum sources and the FPR and runned the additional line to the wastegate ?? is there a specific reason why you choosed the FPR vacuum sources ?
-run BOV to brake booster--- I did that and now my BOV is screaming like crazy !
TiA
Kranked
</TD></TR></TABLE>
I T'ed off the vac. line for the FPR from the intake mani. and ran the WG line there.
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04-30-2004, 11:51 AM
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Re: Greddy Turbo Won't Hold Boost (boostincoupe)
Right, I'll try with a stronger vaccum source just to see what can happen's
I got a vacc manifold so I'll hook it up there....
thank's
Kranked
I got a vacc manifold so I'll hook it up there....
thank's
Kranked
04-30-2004, 02:40 PM
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Re: Greddy Turbo Won't Hold Boost (Quad-Damge)
What exhaust you running ? Clogged CAT? Exhaust leak? Check the oil feed to the turbo as well.
04-30-2004, 06:21 PM
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Re: Greddy Turbo Won't Hold Boost (turbozxi)
Im runing custom 2.5 inch exhaust with a 2.5 inch catco high flow cat, the Cat is No cluged, does the same thing open downpipe, When i dynoed we thought the same thing, cat was cool, did the same thing open downpipe
Oil feed is cool, i have a oil persure gauge, no idea
Oil feed is cool, i have a oil persure gauge, no idea
04-30-2004, 10:58 PM
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Re: Greddy Turbo Won't Hold Boost (Quad-Damge)
you know what, my Greddy15g is sucking it too! 
can't go past 5psi, and it leaks. Don't know what the hella the problem is.
can't go past 5psi, and it leaks. Don't know what the hella the problem is.
05-01-2004, 06:21 AM
#15
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seriiously checked exhaust leaks
i had my bolts between my cat and exhaust loosen up and my spoolin and power were horrible...
tightening them made everything better
i had my bolts between my cat and exhaust loosen up and my spoolin and power were horrible...
tightening them made everything better
05-01-2004, 07:17 AM
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Re: (igo4bmx)
check all couplers for cracks. what happens if you unplug the wastegate??? dont beat on it if you do this if you see it boost more then it did then immeadieatly let off and you know that the wastegate is the problem.
Landon
Landon
05-01-2004, 03:48 PM
#18
OG triple OG
Re: Greddy Turbo Won't Hold Boost (integrx)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by integrx »</TD></TR><TR><TD CLASS="quote">you know what, my Greddy15g is sucking it too! can't go past 5psi, and it leaks. Don't know what the hella the problem is.</TD></TR></TABLE>
sir can you please make sure in the future , you use the word hella in the right context
can't go past 5psi, and it leaks. Don't know what the hella the problem is.</TD></TR></TABLE>sir can you please make sure in the future , you use the word hella in the right context
05-01-2004, 07:26 PM
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Re: (Quad-Damge)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Quad-Damge »</TD></TR><TR><TD CLASS="quote">^^ I Do have a few cracks in them, near my intercooler, but i didn't feel any air coming from them, not huge cracks small ones.</TD></TR></TABLE>
my friend had a crack that couldnt even be seen in 1 of his. thats probably the problem.
Landon
my friend had a crack that couldnt even be seen in 1 of his. thats probably the problem.
Landon
05-01-2004, 07:32 PM
#20
OG triple OG
Re: (Quad-Damge)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Quad-Damge »</TD></TR><TR><TD CLASS="quote">^^ I Do have a few cracks in them, near my intercooler, but i didn't feel any air coming from them, not huge cracks small ones.</TD></TR></TABLE>
it might not open up untill there is a load on the engine.
it might not open up untill there is a load on the engine.
05-01-2004, 07:34 PM
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Re: (Hella_JDM)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Hella_JDM »</TD></TR><TR><TD CLASS="quote">
it might not open up untill there is a load on the engine.</TD></TR></TABLE>
happen to me.. thought i had a bunk setup, untill i got into 2nd gear.
it might not open up untill there is a load on the engine.</TD></TR></TABLE>
happen to me.. thought i had a bunk setup, untill i got into 2nd gear.
10-31-2004, 09:27 PM
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Re:to the whole thread
i to have a greddy kit on my gsr and im losing boost it feels around 5k and then ittl rack uo again due to boost spike as well!!!...it set at 9psi but gios to 13!!...what should we doooo!!!!!...i live in kali so i havet oi have greddy for boost although i love it alot...
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