2nd Generation Specific (1986-1992) 1986-1992 Discussion including performance modifications and technical support sections.

Car builds boost but goes nowhere, HELP ME PLEASE!!!

Old May 19, 2005 | 04:51 PM
  #26  
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From: Philly | PA
anyone else have any insight to this?
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Old May 19, 2005 | 05:23 PM
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Well i blew a small vac line off my car the other night and I tried getting in boost and it would hesitate while getting into boost and it would kind of idle a little funny by either dropping down lower than usual (like its about to die) or it would go up higher. I found the line and put it back on and it would run just fine.
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Old May 19, 2005 | 05:23 PM
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Yes my throttle plates did the same thing, the outboard ones were not opening. I then wired them open until I had time to do the TB mod and man it made a hell of a differance. Just wire those outboard plates open and you should see a huge gain.
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Old May 19, 2005 | 05:24 PM
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From: Philly | PA
Originally Posted by SpeedyRotary
Well i blew a small vac line off my car the other night and I tried getting in boost and it would hesitate while getting into boost and it would kind of idle a little funny by either dropping down lower than usual (like its about to die) or it would go up higher. I found the line and put it back on and it would run just fine.
Sounds like my problem, but the nipple that the vac line is on broke off, so I gotta figure out how to re attach it.
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Old May 19, 2005 | 05:26 PM
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From: Philly | PA
Originally Posted by usmcjsy
Yes my throttle plates did the same thing, the outboard ones were not opening. I then wired them open until I had time to do the TB mod and man it made a hell of a differance. Just wire those outboard plates open and you should see a huge gain.
How do I do this and how long should it take?
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Old May 19, 2005 | 05:31 PM
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From: Kansas City
Originally Posted by Mindspin311
Sounds like my problem, but the nipple that the vac line is on broke off, so I gotta figure out how to re attach it.

JB weld the nipple? Got any pics of the area where the nipple broke off? Vac leaks will almost always effect your power from my previous problems with not properly tightening things down and blowing vac leaks and such.
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Old May 19, 2005 | 05:31 PM
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From: Kansas City
Oh and by the way, I'm running kind of the same setup as you.
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Old May 19, 2005 | 05:37 PM
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I dont have a picture at the moment as I left my camera at school, hopefully once a local FC friend of mine gets off work at 9pm, I can head over to his house and snag a picture of it.

Oh, and how are our set-ups similar?
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Old May 19, 2005 | 05:42 PM
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From: Kansas City
S-AFC, bnr stage 4, 4x720cc injectors,walbro 255, FCD i think those are the same but i've also got the apexi dual n1's with no cats from a 2.5 in dp to mid pipe, bonez intake with a 2.5" TID with 3mm apex seals on a streetport.

pic:


Last edited by SpeedyRotary; May 19, 2005 at 05:44 PM.
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