 not building boost, am i missing something? |
 Apr 28, 2012 - 2:25 PM
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 Enthusiast  Joined Feb 1, '05 From Charlotte NC Currently Offline Reputation: 14 (100%)  |
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! --------------------  QUOTE (Galcobar @ Oct 15, 2008 - 2:44 AM)  You want power but have no money. That's a problem. Cheap. Reliable. Fast. Pick two. |
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May 31, 2012 - 2:31 PM
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Enthusiast Joined Dec 3, '08 From Summerville, SC Currently Offline Reputation: 0 (0%) |
QUOTE (easternpiro1 @ May 28, 2012 - 9:16 PM) yeah stock VSV still in place No it's not. The VSV was eliminated when you went to the Tru-Boost. -------------------- www.tweakdperformance.com
sales@tweakdperformance.com |
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Jun 5, 2012 - 8:07 PM
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Enthusiast Joined Feb 1, '05 From Charlotte NC Currently Offline Reputation: 14 (100%) |
QUOTE (PhoenixTech @ May 31, 2012 - 2:31 PM) QUOTE (easternpiro1 @ May 28, 2012 - 9:16 PM) yeah stock VSV still in place No it's not. The VSV was eliminated when you went to the Tru-Boost. thats right, i confused it with something else. thanks cam! quick update, the car is still not building boost, tested the wastegate and it would not hold vaccum. SO I used my BACKUP wastegate off my old ct20b, would be my luck that that one didnt work either so a good friend of mine made a custom bracket for me and made some snazzy welding mods to a new rod and we came up with this:   these are the old wastegates:   took the car out for a drive and it held to 3lbs then eventually dropped, and would not build boost at all eventually. got some advice and im inclined to believe that the turbo has gone bad. i have NO idea how it could have gone bad as it worked fine before. This post has been edited by easternpiro1: Jun 5, 2012 - 8:13 PM -------------------- QUOTE (Galcobar @ Oct 15, 2008 - 2:44 AM) You want power but have no money. That's a problem. Cheap. Reliable. Fast. Pick two. |
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 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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