loosing boost
08-24-2005, 09:26 AM
#1
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loosing boost
well i am now boosting 13 psi but it tends to drop instantly to about 10psi and holds there throughout my power band...ideas? thanks a lot
08-24-2005, 12:30 PM
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sorry, d16z6, hf mani, td05h, internal gate, homemade bc
initially hits 13 psi then higher rpm(5000+) tappers off to 10...would changing my vacuum source to the intake manifold make any difference you think? currently i have it off the compressor housing
initially hits 13 psi then higher rpm(5000+) tappers off to 10...would changing my vacuum source to the intake manifold make any difference you think? currently i have it off the compressor housing
08-24-2005, 12:52 PM
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Re: (nonvtecD)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by nonvtecD »</TD></TR><TR><TD CLASS="quote">No compressor housing is great for internal gates, that's how mine is. That's a pretty small turbo probably going out of its efficiency.</TD></TR></TABLE>
Na, 13psi isn't even touching its efficiency to be honest. Just sounds like a boost controller problem and or a boost leak. My car is doing the same damn thing right now. 15 psi, back to 12... a week ago it held 18 perfectly. And I can't find anything wrong with it.
Na, 13psi isn't even touching its efficiency to be honest. Just sounds like a boost controller problem and or a boost leak. My car is doing the same damn thing right now. 15 psi, back to 12... a week ago it held 18 perfectly. And I can't find anything wrong with it.
08-24-2005, 01:02 PM
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Re: (93turbo16)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 93turbo16 »</TD></TR><TR><TD CLASS="quote">
Na, 13psi isn't even touching its efficiency to be honest. Just sounds like a boost controller problem and or a boost leak. My car is doing the same damn thing right now. 15 psi, back to 12... a week ago it held 18 perfectly. And I can't find anything wrong with it. </TD></TR></TABLE>
when are you going to realize that your car just doesnt like you
Na, 13psi isn't even touching its efficiency to be honest. Just sounds like a boost controller problem and or a boost leak. My car is doing the same damn thing right now. 15 psi, back to 12... a week ago it held 18 perfectly. And I can't find anything wrong with it.
</TD></TR></TABLE>when are you going to realize that your car just doesnt like you
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08-24-2005, 01:09 PM
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well i have a ball and spring style mbc, and i had to modify the spring because it was too tough, but i am getting a new bc today so i will let you guys know how this works out
08-25-2005, 07:51 AM
#10
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Re: (nonvtecD)
MBC's suck. I have similar problems. Spikes to 12 and settles at 10psi. Td04-13t with hf manifold and external wastegate conversion.
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by nonvtecD »</TD></TR><TR><TD CLASS="quote">No, compressor housing is great for internal gates, that's how mine is. I think your turbo is too small.</TD></TR></TABLE>
he should get more boost by switching to the intake manifold. I always saw about 1psi less running from the compressor housing due to the pressure drop across the intercooler.
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by nonvtecD »</TD></TR><TR><TD CLASS="quote">No, compressor housing is great for internal gates, that's how mine is. I think your turbo is too small.</TD></TR></TABLE>
he should get more boost by switching to the intake manifold. I always saw about 1psi less running from the compressor housing due to the pressure drop across the intercooler.
08-25-2005, 12:03 PM
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Re: (SOHC_MShue)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by SOHC_MShue »</TD></TR><TR><TD CLASS="quote">MBC's suck. I have similar problems. Spikes to 12 and settles at 10psi. Td04-13t with hf manifold and external wastegate conversion.
he should get more boost by switching to the intake manifold. I always saw about 1psi less running from the compressor housing due to the pressure drop across the intercooler. </TD></TR></TABLE>
Yeah but it will still to the drop thing, He can just turn the boost up on the MBC for more boost but it wont fix the problem. At least I don't think.
he should get more boost by switching to the intake manifold. I always saw about 1psi less running from the compressor housing due to the pressure drop across the intercooler. </TD></TR></TABLE>
Yeah but it will still to the drop thing, He can just turn the boost up on the MBC for more boost but it wont fix the problem. At least I don't think.
08-26-2005, 09:48 AM
#14
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well i tried making a different mbc from home depot and put it to the intake manifold and same bs, so i am just going to settle with this until i do it properly next year
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