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

Bov not blowing off!?!?!

Thread Tools
 
Search this Thread
 
Old Apr 16, 2011 | 02:16 AM
  #1  
RACE IN PEACE JIM NOEL's Avatar
Thread Starter
Full Member
 
Joined: Jul 2009
Posts: 63
Likes: 0
From: Napa-Hawaii
Exclamation Bov not blowing off!?!?!

i have a s5 turbo swap with s4 block,blocked off emissions and OMP, FMIC,3'turbo back str8 pipe.SAFC,AEM wideband O2,apexi boost gauge.

when i first got the swap running my SSBOV-2 worked.i didnt have the boost solinoid hooked up so it didnt boost till like 4k rpm,than i poped off one of my IC pipes. i put it back on and the bov hasnt worked sence.

ive installed the boost solinoid and am boosting around 6lbs with 20vac at idle.
i have the bov vac teed to the boost sencor from the nipple on the lower half of the TIM.ive tryed using a single vac to one of the three nipples near the TB. ive even switched to the first gen adjustible ssbov and have adjusted it both ways and still just surging with no bov pop.

PLEASE HELP this is so annoying!
Reply
Old Apr 16, 2011 | 06:25 PM
  #2  
RACE IN PEACE JIM NOEL's Avatar
Thread Starter
Full Member
 
Joined: Jul 2009
Posts: 63
Likes: 0
From: Napa-Hawaii
any ideas?
Reply
Old Apr 16, 2011 | 07:01 PM
  #3  
turboIIrotary's Avatar
Rotary Freak
Tenured Member: 15 Years
iTrader: (9)
 
Joined: Feb 2007
Posts: 2,618
Likes: 3
From: dayton,ohio
Make sure the vacuum line going to your bov has vacuum going to it I was installing a boost gauge on a friends car and oddly some of the nipples didn't have vacuum to them.
Reply
Old Apr 16, 2011 | 08:07 PM
  #4  
RACE IN PEACE JIM NOEL's Avatar
Thread Starter
Full Member
 
Joined: Jul 2009
Posts: 63
Likes: 0
From: Napa-Hawaii
i have what seems like normal vac.
Reply
Old Jun 15, 2011 | 11:34 AM
  #5  
RACE IN PEACE JIM NOEL's Avatar
Thread Starter
Full Member
 
Joined: Jul 2009
Posts: 63
Likes: 0
From: Napa-Hawaii
Could the acctuator not be closing the waist gate?
Reply
Old Jun 15, 2011 | 11:55 AM
  #6  
texFCturboII's Avatar
version 2.0
Tenured Member 15 Years
iTrader: (17)
 
Joined: Mar 2007
Posts: 3,596
Likes: 2
From: Fort Worth, TX
Are you building boost? If the wastegate was completely open all the time you would have significant trouble building boost. My guess is a vacuum leak somehwere... could even be a minute one, it doesn't have to be that big for a ssqv to not be blowing off loudly, they are kinda quiet to begin with unless you are boosting past 10psi.
Reply
Old Jul 29, 2011 | 11:27 AM
  #7  
blk87Turbo2's Avatar
Got Boost?
Tenured Member 15 Years
iTrader: (23)
 
Joined: Jan 2005
Posts: 673
Likes: 1
From: USAF in Germany
When you say boost solenoid, do you mean the boost sensor on the passenger side shock tower? If so, is the BOV teed before or after the restrictor pill?

If it's after, I would think that could cause problems.

A leak could cause a problem too. You could always try the carb cleaner spray method to make sure you have no leaks.
Reply




All times are GMT -5. The time now is 10:15 AM.