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> not building boost, am i missing something?
post Apr 28, 2012 - 2:25 PM
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easternpiro1



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Joined Feb 1, '05
From Charlotte NC
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Hi all, was wondering if i can get some feedback on something i was missing. here's the story:

recently a friend and I fixed a leak due to stripped thread in the head causing a leak between the exhaust manifold and block.

after rethreading and putting everything back togehter leak is gone BUT now im seeing much lower boost numbers after taking it for a drive.

I own an AEM tru boost controler/gauge and the boost is currently set to stock wastegate pressure (8psi) and consistently held this pressure PRIOR to fixing the exhaust leak.

as of today, my first drive out, my car would not pull past 5psi and touched 6psi BRIEFLY. I double checked my IC piping and adjusted and retightened.

when i went back out the car would only boost up to 4-5 psi adn sometimes as low as 2-3 max.



Im pretty sure its a leak somewhere but it can only be one place as the only IC piping that was removed was the piping coming from the turbo (charge side) i have checked and double checked it.

is there something im missing? any helpful hints would be appreciated! thanks!


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post Feb 14, 2013 - 9:14 AM
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Smaay

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Joined Dec 8, '03
From Lancaster CA
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where is your boost gauge connected to? at idle you should be getting 18-20 inHG not 2 to 6.


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2001 Celica GT-S Turbo
1997 Supra TT 6speed
1997 Celica 3MZ/1MZ swap
1990 Celica All-Trac

Posts in this topic
- easternpiro1   not building boost   Apr 28, 2012 - 2:25 PM
- - bsamps4   Have you tried to readjust the true boost?   Apr 28, 2012 - 4:04 PM
- - easternpiro1   nah the lines coming from the tru boost are not ho...   Apr 28, 2012 - 4:18 PM
- - bsamps4   Reconnect sir.   Apr 28, 2012 - 5:22 PM
|- - easternpiro1   QUOTE (bsamps4 @ Apr 28, 2012 - 5:22...   Apr 28, 2012 - 5:36 PM
- - presure2   build a boost leak tester, bro, theres gotta be a ...   Apr 29, 2012 - 8:29 AM
- - easternpiro1   Yeah, its pretty sporadic. im going to have to go...   Apr 29, 2012 - 12:03 PM
- - TannerEsser   bad boost controller? like a bad spring   May 1, 2012 - 10:58 AM
|- - easternpiro1   QUOTE (TannerEsser @ May 1, 2012 - 11...   May 2, 2012 - 12:02 AM
|- - TannerEsser   QUOTE (easternpiro1 @ May 2, 2012 - 12...   May 3, 2012 - 10:58 AM
- - playr158   yea i'd vote that wastegate is blowing open or...   May 3, 2012 - 11:19 AM
- - easternpiro1   hmmm. im about to ask a silly question... how do i...   May 3, 2012 - 3:09 PM
- - easternpiro1   hmmm. im about to ask a silly question... how do i...   May 3, 2012 - 3:09 PM
- - playr158   You take the downpipe off and you'll be able t...   May 3, 2012 - 3:48 PM
|- - easternpiro1   QUOTE (playr158 @ May 3, 2012 - 3:48...   May 3, 2012 - 8:11 PM
- - easternpiro1   HEY, didnt get to pressure test it yet, BUT readju...   May 9, 2012 - 9:19 AM
- - easternpiro1   HEY, didnt get to pressure test it yet, BUT readju...   May 9, 2012 - 9:19 AM
- - sean530sly   any plug wires get damaged during maintenance? (sl...   May 10, 2012 - 12:25 AM
- - easternpiro1   I dont think so. I dont have any wires, its coil ...   May 10, 2012 - 6:52 PM
- - easternpiro1   OOOKAY. I took apart ALL of my IC Piping, cut larg...   May 16, 2012 - 7:15 PM
- - lagos   Are they knock-off ebay parts or the real deal tha...   May 16, 2012 - 7:49 PM
- - easternpiro1   my couplers are from vibrant performance, and I be...   May 16, 2012 - 8:28 PM
- - easternpiro1   took off BOV (tial Q) and shimmed it to strenghten...   May 17, 2012 - 1:37 PM
- - easternpiro1   QUOTE (playr158 @ May 3, 2012 - 4:48...   May 27, 2012 - 7:15 AM
- - malecrod   Matt, is your turbo clocked? If it is, make sure ...   May 27, 2012 - 7:33 PM
- - easternpiro1   actually no, its still in its stock position, it w...   May 28, 2012 - 6:45 PM
- - bsamps4   Are you still using the stock VSV?   May 28, 2012 - 7:42 PM
- - easternpiro1   yeah stock VSV still in place   May 28, 2012 - 9:16 PM
- - PhoenixTech   QUOTE (easternpiro1 @ May 28, 2012 - 9...   May 31, 2012 - 2:31 PM
|- - easternpiro1   QUOTE (PhoenixTech @ May 31, 2012 - 2...   Jun 5, 2012 - 8:07 PM
- - lagos   Matt... 1. Out of all the 3sgte owners over all t...   Jun 5, 2012 - 9:27 PM
- - lagos   Can you take a general picture of your engine bay,...   Jun 5, 2012 - 9:37 PM
- - lagos   Put the stock wastegate back on. Remove the boost...   Jun 5, 2012 - 10:02 PM
- - easternpiro1   QUOTE (lagos @ Jun 5, 2012 - 10:27 P...   Jun 6, 2012 - 2:47 PM
- - batcavee00   hey man, if you checked you wastegate and turbo a...   Jun 20, 2012 - 4:17 PM
- - delusionz   you might want to check that alloy plate from time...   Jun 20, 2012 - 7:00 PM
|- - easternpiro1   QUOTE (delusionz @ Jun 20, 2012 - 7...   Jul 1, 2012 - 11:38 AM
- - delusionz   in all my troubles with turbochargers and boost on...   Jul 3, 2012 - 1:32 AM
- - spinout   Have you tried using a boost leak tester, it's...   Jul 5, 2012 - 5:36 AM
- - easternpiro1   QUOTE (delusionz @ Jul 3, 2012 - 2:3...   Jul 8, 2012 - 1:13 PM
- - batcavee00   testing for leak at 3-5 psi wont do much for you. ...   Jul 17, 2012 - 2:25 PM
- - easternpiro1   this is true, but im afraid to test any higher gon...   Jul 17, 2012 - 4:30 PM
- - batcavee00   Don't worry just test right after the turbo an...   Jul 18, 2012 - 12:10 AM
- - easternpiro1   quick update... I took off the BOV and replaced i...   Jul 24, 2012 - 11:06 PM
- - easternpiro1   update: taking the car to a friend's dyno, go...   Aug 30, 2012 - 9:00 AM
- - playr158   Good Luck buddy! Sucks that its taking so much...   Aug 30, 2012 - 9:45 AM
|- - easternpiro1   thanks Dan! I found out what it was, and as I ...   Sep 1, 2012 - 8:22 PM
- - playr158   WHY YOU HAZA NO BOOSTA   Sep 4, 2012 - 1:13 PM
- - SwissFerdi   ^ He no bũsta.   Sep 4, 2012 - 4:24 PM
- - easternpiro1   MAN. this is frustrating.... I took the manifold o...   Sep 7, 2012 - 4:00 PM
|- - 3WayStunna   QUOTE (easternpiro1 @ Sep 7, 2012 - 4...   Sep 7, 2012 - 4:54 PM
- - easternpiro1   thanks for the encouragement bro, but seriously......   Sep 8, 2012 - 12:37 PM
- - easternpiro1   http://www.6gc.net/forums/index.php?showto...mp;#e...   Sep 12, 2012 - 9:13 PM
- - SwissFerdi   "I used cigarillos." You don't say....   Sep 18, 2012 - 12:14 PM
- - lagos   So where was the leak at?   Sep 19, 2012 - 10:51 AM
- - easternpiro1   QUOTE (SwissFerdi @ Sep 18, 2012 - 12...   Sep 19, 2012 - 7:49 PM
- - lagos   It needs less ideas and more of your hands under t...   Sep 19, 2012 - 11:50 PM
|- - easternpiro1   QUOTE (lagos @ Sep 20, 2012 - 12:50 ...   Sep 20, 2012 - 9:17 AM
- - easternpiro1   ANOTHER update: Ive inspected my turbo, and come t...   Oct 4, 2012 - 10:59 PM
- - Soulend   whoa, weird looking wastegate... what gen engine i...   Oct 5, 2012 - 1:01 PM
|- - easternpiro1   QUOTE (Soulend @ Oct 5, 2012 - 2:01 ...   Oct 5, 2012 - 6:02 PM
- - pitcelica   We can clearly hear the turbo spooling. So, I...   Oct 8, 2012 - 11:16 AM
- - easternpiro1   thanks sam!! also i wanted to mention (no...   Oct 10, 2012 - 2:27 PM
- - playr158   Boost or vaccum leak yes.....is your intakr manifo...   Oct 10, 2012 - 5:29 PM
- - easternpiro1   you know what? I was thinking about that the other...   Oct 11, 2012 - 9:19 PM
- - easternpiro1   quick update, after eyeballing my vacuum lines aga...   Dec 4, 2012 - 10:23 PM
- - Smaay   you are reading -6 inHg at WOT? dude there is some...   Dec 5, 2012 - 11:50 AM
|- - easternpiro1   QUOTE (Smaay @ Dec 5, 2012 - 12:50 P...   Dec 5, 2012 - 9:42 PM
- - lagos   QUOTE (easternpiro1 @ Dec 5, 2012 - 9...   Dec 5, 2012 - 11:40 PM
|- - easternpiro1   QUOTE (lagos @ Dec 5, 2012 - 11:40 P...   Dec 6, 2012 - 11:09 AM
- - playr158   Get yourself a nice VDO boostgauge, not expensive ...   Dec 6, 2012 - 10:55 AM
- - Smaay   is it electric or mechanical? if its electric, it ...   Dec 6, 2012 - 3:29 PM
|- - easternpiro1   QUOTE (Smaay @ Dec 6, 2012 - 4:29 PM...   Dec 7, 2012 - 11:09 PM
|- - Smaay   QUOTE (easternpiro1 @ Dec 7, 2012 - 8...   Dec 10, 2012 - 6:19 PM
|- - easternpiro1   QUOTE (Smaay @ Dec 10, 2012 - 6:19 P...   Dec 11, 2012 - 3:21 AM
- - playr158   get a good ol'mechanical!   Dec 8, 2012 - 5:55 PM
- - easternpiro1   here's video sorry for the motion. cold side...   Dec 11, 2012 - 3:27 AM
- - Soulend   Video is set to private?... but good to hear you ...   Dec 11, 2012 - 4:01 AM
|- - easternpiro1   QUOTE (Soulend @ Dec 11, 2012 - 5:01...   Dec 11, 2012 - 4:43 AM
- - Smaay   glad you figured it out! its always satisfying...   Dec 11, 2012 - 12:08 PM
|- - easternpiro1   QUOTE (Smaay @ Dec 11, 2012 - 12:08 ...   Dec 11, 2012 - 2:05 PM
- - lagos   Don't forget that it still sounds like your bo...   Dec 11, 2012 - 2:50 PM
|- - easternpiro1   QUOTE (lagos @ Dec 11, 2012 - 2:50 P...   Dec 11, 2012 - 8:29 PM
- - lagos   QUOTE (easternpiro1 @ Dec 11, 2012 - 8...   Dec 11, 2012 - 10:50 PM
|- - easternpiro1   QUOTE (lagos @ Dec 11, 2012 - 10:50 ...   Dec 12, 2012 - 12:20 AM
- - lagos   QUOTE (easternpiro1 @ Dec 12, 2012 - 12...   Dec 12, 2012 - 1:10 AM
- - easternpiro1   yeah, Its not actually hooked up to any boost line...   Dec 12, 2012 - 11:25 AM
- - lagos   QUOTE (easternpiro1 @ Dec 12, 2012 - 11...   Dec 12, 2012 - 4:47 PM
|- - easternpiro1   QUOTE (lagos @ Dec 12, 2012 - 4:47 P...   Dec 12, 2012 - 6:56 PM
- - lagos   QUOTE (easternpiro1 @ Dec 12, 2012 - 6...   Dec 12, 2012 - 7:36 PM
- - easternpiro1   definitely... will be sure tomorrow eve.   Dec 12, 2012 - 8:30 PM
- - easternpiro1   hey everybody, finally found someone to help me ou...   Jan 23, 2013 - 10:45 PM
- - easternpiro1   .   Jan 28, 2013 - 10:33 PM
- - easternpiro1   before switching the turbos I decided to test the ...   Feb 13, 2013 - 6:37 PM
- - Smaay   where is your boost gauge connected to? at idle yo...   Feb 14, 2013 - 9:14 AM
- - lagos   QUOTE (easternpiro1 @ Feb 13, 2013 - 6...   Feb 14, 2013 - 10:43 AM
- - pitcelica   Lagos is right on this one. The test you've do...   Feb 14, 2013 - 9:02 PM
- - easternpiro1   QUOTE (lagos @ Feb 14, 2013 - 10:43 ...   Feb 15, 2013 - 7:13 PM
- - Smaay   guys its not measured in negative numbers. its mea...   Feb 15, 2013 - 11:06 PM
- - easternpiro1   QUOTE (Smaay @ Feb 16, 2013 - 12:06 ...   Feb 16, 2013 - 12:56 AM
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