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  #1  
Old 06-11-2008, 07:58 PM
BOBB98.5A4QT BOBB98.5A4QT is offline
 
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Default boost missing
Hello!

I got a 98.5 A4 1.8T and recently i ship it. must be 18 psi but my boost gauge tell me just 14 psi.


Please help me to find the solution!

Thanks.
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  #2  
Old 06-11-2008, 08:27 PM
99.5audia4quattro 99.5audia4quattro is offline
 
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Default RE: boost missing
check your vacume lines from your intake manifold to your boost gauge
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99.5 Audi A4 1.8TQM
APR stage 3+, JE Pistons,H-Beam rods,
full 3 inch exhaust, 355mm stoptech brakes, koni adjustable coilovers, 18 inch rondell rims,
short shift, forged diverter valve,
manual boost controller, light weight flywheel and six puc
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  #3  
Old 06-11-2008, 08:57 PM
acollicott acollicott is offline
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Default RE: boost missing
Most likely a boost leak. try one of these

http://audizine.com/forum/showthread.php?t=64411

http://audizine.com/forum/showthread.php?t=104080
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  #4  
Old 06-12-2008, 07:08 AM
BOBB98.5A4QT BOBB98.5A4QT is offline
 
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Default RE: boost missing
Ok the vacume line is ok.

i will try the leak test!

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  #5  
Old 06-12-2008, 12:16 PM
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Mike@DTH Mike@DTH is offline
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Default RE: boost missing
What chip do you have, because not many chips for the ndbw cars actually hit 18psi since they are sold as 1 bar chips.
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  #6  
Old 06-17-2008, 09:51 PM
BOBB98.5A4QT BOBB98.5A4QT is offline
 
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Default RE: boost missing
go see "ti-boeuf dragster" on youtube! this is the guy. BOOST ENGINERING !!!!
its realy 18 psi! I work for im... but i just got no time to chek everiting..

more news soon...
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Old 06-17-2008, 10:59 PM
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ghost6303 ghost6303 is offline
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Default RE: boost missing
no thanks
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  #8  
Old 06-18-2008, 01:03 AM
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Mike@DTH Mike@DTH is offline
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Default RE: boost missing
Quote:
ORIGINAL: BOBB98.5A4QT

go see "ti-boeuf dragster" on youtube! this is the guy. BOOST ENGINERING !!!!
its realy 18 psi! I work for im... but i just got no time to chek everiting..

more news soon...

What is really 18psi and how is he "the guy"?

The GIAC Xchip runs 18-21psi.


People have pushed the K03 to well into the 20's, my custom GIAC chip ran 26psi on 91 octane. So 18psi isn't all that hard to believe since thats what most people push now.

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  #9  
Old 06-18-2008, 01:37 AM
brimhall99 brimhall99 is offline
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Default RE: boost missing
What does a 2000 audi a4 1.8 with GIAC boost usually
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  #10  
Old 06-18-2008, 02:02 AM
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Mike@DTH Mike@DTH is offline
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Default RE: boost missing
IIRC it should be 16-18psi.
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