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major boost lag

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Old Jul 31, 2007 | 06:21 PM
  #1  
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Default major boost lag

ok i recently had a 3in downpipe made. As soon as i put it my car( open dp), my car wont make more than 3psi until 5500rpms. I checked all my vaccume lines, i didn't see any exhaust leaks from the manifold or turbo and just double check my couplers.
does anone have an idea
Old Aug 1, 2007 | 07:16 AM
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Default Re: major boost lag

what size turbo?
Old Aug 1, 2007 | 07:39 AM
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Default Re: major boost lag

What did you have before?
Old Aug 1, 2007 | 07:55 AM
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Default Re: major boost lag

i had that problem but i found out my wastegate was stuck wide open.

that doesnt sound relevent to your problem, but that was the cause of my problem
Old Aug 1, 2007 | 08:39 AM
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Default Re: major boost lag

by size do you mean the size of the dp...it was 2 and 1/4 (long story)

i thought that it might be the wg but i when im driving it doesn't sound like its open

57 tirm 63 a/r
Old Aug 1, 2007 | 08:54 AM
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Default Re: major boost lag

Do you have an integrated wastegate or external? If it's integrated ("internal") check for interference issues with the downpipe around the flange, etc.. We don't know anything about your turbo setup other than you just changed downpipes.
Old Aug 1, 2007 | 08:56 AM
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Default Re: major boost lag

well i just took the wg off and the valve is up like 1/4 inch any idea how to fix?
Old Aug 1, 2007 | 08:58 AM
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Default Re: major boost lag

external
to4e w?...with garret internalS?
turbonectics evolution wg
nock off hks BOV
Old Aug 1, 2007 | 09:23 AM
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Default Re: major boost lag

i just took apart my wg

the piston is threaded at the top and held on by a "shim" and then a bolt. It looked like the bolt was screwed on too tight. i took off the bolt and noticed that if i dont srcew it on all the way then the piston/valve goes down all the way. id it safe to use a washer or two so that the bolt wont screw on anymore .

i just noticed that no matter how far i push the valve down (even past the flang) the is still VERY VERY VERY small amount of light. Ok well it def needs some type of o-ring i can see the space> Is it something i have to get from turbonetics or can i pick it up at lows?
Thank you

Last edited by 98shlude; Aug 1, 2007 at 09:42 AM.
Old Aug 1, 2007 | 10:02 AM
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Default Re: major boost lag

you do have the firering in dont you?



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