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SVTPerformance's Chain of Restaurants
The Blower Bistro
Tial BOV issue
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<blockquote data-quote="01yellercobra" data-source="post: 16288177" data-attributes="member: 35549"><p>I'm sorry if some of what I'm about to say is redundant, but I'm still having a problem wrapping my head around everything. </p><p></p><p>The BOV is pretty simple. If it's not closing then it's seeing vacuum at all times for some reason. Adding washers isn't going to make a difference. Even if it was slow the positive pressure plus the spring pressure will overcome the boost.</p><p></p><p>What I would do is disconnect the vacuum line from the BOV then take it for a quick spin. Yes, the engine won't be happy, but it'll be quick. IIRC I was able to get about 5psi with just the spring when I was doing some leak testing. This was with a 50mm Tial BOV. So if your BOV is working correctly you should at least see a couple psi for a quick couple seconds before the boost over powers the spring. If you see boost, then the issue is elsewhere. If you don't see boost then the BOV is the issue. </p><p></p><p>Just to double check, there is only one place to hook a line up on the BOV you're running correct?</p></blockquote><p></p>
[QUOTE="01yellercobra, post: 16288177, member: 35549"] I'm sorry if some of what I'm about to say is redundant, but I'm still having a problem wrapping my head around everything. The BOV is pretty simple. If it's not closing then it's seeing vacuum at all times for some reason. Adding washers isn't going to make a difference. Even if it was slow the positive pressure plus the spring pressure will overcome the boost. What I would do is disconnect the vacuum line from the BOV then take it for a quick spin. Yes, the engine won't be happy, but it'll be quick. IIRC I was able to get about 5psi with just the spring when I was doing some leak testing. This was with a 50mm Tial BOV. So if your BOV is working correctly you should at least see a couple psi for a quick couple seconds before the boost over powers the spring. If you see boost, then the issue is elsewhere. If you don't see boost then the BOV is the issue. Just to double check, there is only one place to hook a line up on the BOV you're running correct? [/QUOTE]
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SVTPerformance's Chain of Restaurants
The Blower Bistro
Tial BOV issue
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