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Car gets 11 psi with 5 psi spring !

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Old 11-20-2006, 07:55 AM
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Default Car gets 11 psi with 5 psi spring !

I run a B18C6 with SC34 turbo, 38mm TIAL WG, 5 psi spring and Neukin equal lenght manifold, Hondata S300.


Problem is, when i WOT before vtec, WG reguls on 5 psi.


BUT, when I enter the vtec, and inside the vtec, the boost goes to 11 psi and even more if I kept the WOT...

Checked the vacuum lines, the gauge, the ecu...


Does anyone have an idea, solution or searching way ?
Old 11-20-2006, 07:58 AM
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Default Re: Car gets 11 psi with 5 psi spring ! (panta83)

are you sure the wastegate is opening? Sounds to me that its not..... or your getting major boost creep/spike
Old 11-20-2006, 08:29 AM
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Default Re: Car gets 11 psi with 5 psi spring ! (BoostedEG6)

Do you have a vacuum line to the top port of the WG? If you are then you're just pushing air in keeping it closed. Leave that port open.
Old 11-20-2006, 08:32 AM
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sounds like boost creep it would blow right by 5psi if it wasnt opening, its slowly creeping up right?

what rpm does it hit 5 what rpm does it hit 11?
Old 11-20-2006, 09:25 AM
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Default Re: (hybrdthry911)

this was happening on my buddies rx-2 turned out the wastgate bolts worked loose... good luck...
Old 11-20-2006, 09:43 AM
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Default Re: Car gets 11 psi with 5 psi spring ! (panta83)

for a start, i would recommend geting the boost cut activated on the s300 at 10 psi or so, and with such a low boost and that mani u will get creep, if u wanna fix it might as well get a 44mm wg or increase the boost a little see if it helps, borrow someones boost controller and try it.
Old 11-20-2006, 01:11 PM
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thanks all

When i accel . Before the vtec ( 5600 ) 5 psi and then 6500 rpm it goes slowly to 10 - 11 .

I tried without vtec and it's the same thing but it goes slower .

Tomorrow i'll open one more time the wastegate and check everything ... I really don't understand ...
Old 11-20-2006, 08:28 PM
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Default Re: Car gets 11 psi with 5 psi spring ! (panta83)

every time my boost creeps i smack it with a fly swatter and say BAD BOOST BAD!!
Old 11-20-2006, 08:46 PM
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Default Re: Car gets 11 psi with 5 psi spring ! (panta83)

what vaccum line are u using for the wg
Old 11-20-2006, 11:08 PM
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Default Re: Car gets 11 psi with 5 psi spring ! (blinx9900)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by blinx9900 &raquo;</TD></TR><TR><TD CLASS="quote">every time my boost creeps i smack it with a fly swatter and say BAD BOOST BAD!! </TD></TR></TABLE>

throw yourself down a long flight of stairs please

kthxbye
Old 11-21-2006, 01:02 AM
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Default Re: Car gets 11 psi with 5 psi spring ! (LoseRPunKx182)

i'm using one behind the intake mani .

Prob Found !

It's a 35mm WG . I asked for a 38 Got to see with alex ...


Modified by panta83 at 5:58 PM 11/21/2006
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