greddy users!! how do you hold 10-11psi??
07-30-2007, 04:56 AM
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greddy users!! how do you hold 10-11psi??
alright guys, i did alot of reading up on this and i'm still stuck as to how people get their greddy turbo's to hold boost. i'm going in for a retune on wednesday, currently at 5.5-6psi which is the stock wastegate arm setting. i know there are people who have tuned their greddy kits at 10psi or even more, i was wondering how they got their boost to hold? i have an mbc, and i attempted to turn it up to around 7-8psi. 2nd gear it will hit 7-8 psi then immediately drop to 5-6, 3rd gear itll hold for a little longer but by redtime its back to 5-6. 4th and 5th gear seem to hold ok.
i currently have the mbc hooked up to wastegate nipple, and a vac source (same as bov). i really dont want to hear the turbo is too small, because how are other greddy users tuning at 10psi+. and yes i know internal wastegate sucks, but that's not the question here. i heard getting a nicer exhaust would help. i'm running the kteller 2.5", 2.5" test pipe, and a 2.75" catback. but still havin problems holdin boost
any help would be appreciated . i would like to hear from those who have tuned their greddy turbo's over their wastegate arm setting.
my set up:
sohc d16y8
greddy log
tdo4h-15g
sre charge piping
440 rc's
kteller 2.5", 2.5" test pipe, 2.75" n1
hondata s100
currently tuned at stock wastegate setting.
going in for a retune this wed for more boost. help me out guys! thanks in advance
i currently have the mbc hooked up to wastegate nipple, and a vac source (same as bov). i really dont want to hear the turbo is too small, because how are other greddy users tuning at 10psi+. and yes i know internal wastegate sucks, but that's not the question here. i heard getting a nicer exhaust would help. i'm running the kteller 2.5", 2.5" test pipe, and a 2.75" catback. but still havin problems holdin boost
any help would be appreciated . i would like to hear from those who have tuned their greddy turbo's over their wastegate arm setting.
my set up:
sohc d16y8
greddy log
tdo4h-15g
sre charge piping
440 rc's
kteller 2.5", 2.5" test pipe, 2.75" n1
hondata s100
currently tuned at stock wastegate setting.
going in for a retune this wed for more boost. help me out guys! thanks in advance
07-30-2007, 06:08 AM
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Re: greddy users!! how do you hold 10-11psi?? (bboygreddy)
You have some binding in the actuator arm or flapper that causes the actuator not to shut enough once it opens. Check for binding in the flapper arm, or you might simply have a bad actuator angle causing the binding.
Oh, and your turbo is too small. That doesn't have anything to do with failure to hold 10 psi, but you do need to hear it.
Oh, and your turbo is too small. That doesn't have anything to do with failure to hold 10 psi, but you do need to hear it.
07-30-2007, 06:11 AM
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Re: greddy users!! how do you hold 10-11psi?? (Joseph Davis)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Joseph Davis »</TD></TR><TR><TD CLASS="quote">
Oh, and your turbo is too small. That doesn't have anything to do with failure to hold 10 psi, but you do need to hear it. </TD></TR></TABLE>
Lol, that made me smile.
Oh, and your turbo is too small. That doesn't have anything to do with failure to hold 10 psi, but you do need to hear it.
</TD></TR></TABLE>Lol, that made me smile.
07-30-2007, 06:46 AM
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Re: (Joseph Davis)
i used to run 18 psi on that turbo. td05 correct? anyhow, you can try two different things.
1. there is a nut on the internal wastegate. you can screw it out some to make it open more i believe. that should pick you up a few psi.
2. i dont remember how exactly we did this (it's been 4 years ago since i had one) .... maybe somebody else can tell you exactly how to do it though. you can buy a pack of T-fittings and rig one up in your vaccum lines. it will create a small vaccum leak, but it will DEF increase boost. try sending AIRSHIFTER a PM. he's the one who set that up for me.
1. there is a nut on the internal wastegate. you can screw it out some to make it open more i believe. that should pick you up a few psi.
2. i dont remember how exactly we did this (it's been 4 years ago since i had one) .... maybe somebody else can tell you exactly how to do it though. you can buy a pack of T-fittings and rig one up in your vaccum lines. it will create a small vaccum leak, but it will DEF increase boost. try sending AIRSHIFTER a PM. he's the one who set that up for me.
07-30-2007, 07:57 AM
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Re: (Supacharge)
check for boost leaks, especially check the bov gasket (greddy bov gaskets are known for going out pretty easily). i held 10-11psi on my greddy kit perfectly fine on my mbc. actually it was 9.5 and crept to 11.
my dyno vids on 8.5psi before we turned it up, and yes my turbo was starting to go. ran it for a little over 2 years before upping the boost, not to mention i bought the kit used (so who knows how long the the previous owner ran it for).
http://www.youtube.com/watch?v=lSLVDOL9Tjk
http://www.youtube.com/watch?v=OGM6oItgYQc
http://www.youtube.com/watch?v=sg01U4U-6hM
end result was 270hp @ 204tq.
my dyno vids on 8.5psi before we turned it up, and yes my turbo was starting to go. ran it for a little over 2 years before upping the boost, not to mention i bought the kit used (so who knows how long the the previous owner ran it for).
http://www.youtube.com/watch?v=lSLVDOL9Tjk
http://www.youtube.com/watch?v=OGM6oItgYQc
http://www.youtube.com/watch?v=sg01U4U-6hM
end result was 270hp @ 204tq.
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07-30-2007, 07:58 AM
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Re: (Hyper16-Johnny)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Hyper16-Johnny »</TD></TR><TR><TD CLASS="quote">check for boost leaks, especially check the bov gasket (greddy bov gaskets are known for going out pretty easily). i held 10-11psi on my greddy kit perfectly fine on my mbc. actually it was 9.5 and crept to 11. </TD></TR></TABLE>
Good point, a small crack or loose clamp, etc, in a coupler would cause boost to taper.
Good point, a small crack or loose clamp, etc, in a coupler would cause boost to taper.
07-30-2007, 01:37 PM
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Re: (Joseph Davis)
With a 19T, it took alot of effort to hold 11psi to redline on a d16y8. It needed a perfect tune, 0 leaks and alot of tweaking with the EBC. I just don't think that 15G will do it for you. It's gonna run out of breath at ~6K.
07-30-2007, 02:26 PM
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Re: greddy users!! how do you hold 10-11psi?? (bboygreddy)
just like everybody said check ur system and if u turn up the boost get it retuned,my friends d16 we messed wit the waste gate and pumped 15psi out of it on a greddy kit,but blew the head gasket runnin on the blue box 
07-30-2007, 05:35 PM
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Re: (thewrai6th)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by thewrai6th »</TD></TR><TR><TD CLASS="quote">With a 19T, it took alot of effort to hold 11psi to redline on a d16y8. It needed a perfect tune, 0 leaks and alot of tweaking with the EBC. I just don't think that 15G will do it for you. It's gonna run out of breath at ~6K.</TD></TR></TABLE>
Nope. The 15G usually peaks out powerwise at 14-15 psi/240 whp, but will boost past that as Supacharge stated. You probably had an issue with your car.
Nope. The 15G usually peaks out powerwise at 14-15 psi/240 whp, but will boost past that as Supacharge stated. You probably had an issue with your car.
07-30-2007, 06:22 PM
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Re: (Joseph Davis)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Joseph Davis »</TD></TR><TR><TD CLASS="quote">
Nope. The 15G usually peaks out powerwise at 14-15 psi/240 whp, but will boost past that as Supacharge stated. You probably had an issue with your car.</TD></TR></TABLE>
AHHH i just realized we are talking about a SOHC ... 15g. damn im stupid. i had the 18g for the b series. i dont know anything about those 15s!
Nope. The 15G usually peaks out powerwise at 14-15 psi/240 whp, but will boost past that as Supacharge stated. You probably had an issue with your car.</TD></TR></TABLE>
AHHH i just realized we are talking about a SOHC ... 15g. damn im stupid. i had the 18g for the b series. i dont know anything about those 15s!
07-30-2007, 06:53 PM
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Re: (Supacharge)
Really? I remember hearing tales of a heavyslut coupe with D16Z6, Greddy kit, and nitrous, that came out of RLZ a few years back running something like high 11's or low 12's... I was convinced that was you.
Oh, well.
Oh, well.
07-31-2007, 06:15 AM
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Re: (Joseph Davis)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Joseph Davis »</TD></TR><TR><TD CLASS="quote">Really? I remember hearing tales of a heavyslut coupe with D16Z6, Greddy kit, and nitrous, that came out of RLZ a few years back running something like high 11's or low 12's... I was convinced that was you.
Oh, well. </TD></TR></TABLE>
that was howard's brother. and yes, that thing was extremely fast! especially for back in those days. 380ish whp with the nitrous i believe.
this is the car from back then ... [IMG]
<br/>Shot at 2007-07-31[/IMG]
Oh, well.
</TD></TR></TABLE>that was howard's brother. and yes, that thing was extremely fast! especially for back in those days. 380ish whp with the nitrous i believe.
this is the car from back then ... [IMG]
<br/>Shot at 2007-07-31[/IMG]
07-31-2007, 09:26 AM
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Re: (Joseph Davis)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Joseph Davis »</TD></TR><TR><TD CLASS="quote">
Nope. The 15G usually peaks out powerwise at 14-15 psi/240 whp, but will boost past that as Supacharge stated. You probably had an issue with your car.</TD></TR></TABLE>
Yep, it was an injector seal leak. Once that was fixed, it was just an issue of getting the EBC setup.
I stand corrected on the 15G. I felt like the 19T was almost too small for the D, so I figured a 15G would not flow enough up top for 11 psi.
Nope. The 15G usually peaks out powerwise at 14-15 psi/240 whp, but will boost past that as Supacharge stated. You probably had an issue with your car.</TD></TR></TABLE>
Yep, it was an injector seal leak. Once that was fixed, it was just an issue of getting the EBC setup.
I stand corrected on the 15G. I felt like the 19T was almost too small for the D, so I figured a 15G would not flow enough up top for 11 psi.
08-03-2007, 12:19 AM
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well guys i got retuned, everything went pretty well. the car hits 10psi but drops to 8psi then tries to climb back to 10psi by redline. my tuner said this is cuz its an mbc, if i had an ebc, it would eletronically up the boost where it drops to keep it consistent at 10psi. car made 185whp on a mustang dyno (~200whp in dynojet terms) the car def pulls alot hard now!! very happy with the tune, big props to sander at sander-tuned.com
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