blow off valve vacume line

[burnout 180]

What is the purpose of connecting a vaccume line to a blow off valve?

because I installed a skyline blow off valve on my ca18det and when i connected the vaccume line to it opens up at idal which means that the blow off valve is allways open. So i'm losing pressure.

So i wanted to know if the blow off valve would work if i closed up the vaccum line and let the air pressure open it manually.

[c-rad]

What is the purpose of connecting a vaccume line to a blow off valve?

because I installed a skyline blow off valve on my ca18det and when i connected the vaccume line to it opens up at idal which means that the blow off valve is allways open. So i'm losing pressure.

So i wanted to know if the blow off valve would work if i closed up the vaccum line and let the air pressure open it manually.

The pressure under boost helps keep it closed and the vacuum let's it open.

[burnout 180]

so blocking of the vaccum line to it would do more harm than good?

I thought that doing this would allow the pressure to manually open up the valve instead of the vaccum causing me to lose pressure

[themadscientist]

your blowoff valve would not respond properly. What type of BOV do you have?