Yes, when you have an upgraded BOV, you will need a more sufficient line from the intake than the stock vacuum line. A good time to install the connector for your vacuum line is when you clean your intake valves.So is this article basically saying we need to tap into the intake manifold for larger vacuum lines going to the BOV to avoid surge?? I know a lot of people that have ran tial bov with the stock vacuum lines with no issues. Or is the larger vacuum line only needed for upgraded turbos?
So is this article basically saying we need to tap into the intake manifold for larger vacuum lines going to the BOV to avoid surge?? I know a lot of people that have ran tial bov with the stock vacuum lines with no issues. Or is the larger vacuum line only needed for upgraded turbos?
This is an interesting article. While BOV surge can cause damage over time, it's a lot less severe than surge under acceleration. You should also hear a very distinct noise when surge occurs and have evidence of surge on the compressor wheel as well. How does Tony diagnose this damage as being surge VS too high of axial load?
It means your car generates more than 8psi of vacuum, which is normal. The moment you press the gas, that vacuum will disappear and there will only be the 8psi spring forcing it closed so it will shut immediately. Hold a paper by the outlet you should see even at idle it's pushing a small amount of air out so nothing should get in. If you're worried about it springs can be shimmed, but I wouldn't worry about it as long as it's not open very much.Hi guys, so i changed my tial spring to the white version, and when i start the car the bov is not completly closed, is it bad or normal? And if its bad what could be the cause?
Hi, thanks for reply: so i made 4 pictures 2 idle and 2 with AC on, is it normal what you see? Because in the things that Chris wrote there was something about the lightest spring but closed on idle.
http://imgur.com/Ipbe17j AC ON
http://imgur.com/fSTV3h0 AC ON
Sounds like it only displays the charge pipe pressure sensor which is never going to show vacuum. You need the intake manifold signal which is after the throttle blade.Well ofcourse there is a boost gauge, on idle its 0.2psi, dont see it really change when i put my a/c on.
Yes, surge under load is worse, but that's normally the land of have a compressor that's way too big -not really a common occurrence with the N54's. The thing is... low load surge is still bad and quickly wears things out. Not sure why you'd think the compressor wheel would have evidence of surge on it, unless it backed the nut off and lunched the compressor.