lookin for bov noises
01-15-05, 12:39 AM
#2
I think I'm addicted
i think it might be this
Why do I have surge (a woo woo woo woo sound) on my SSQV?
This is a result of the valve not pulling the valve open, while the turbo compressor is spinning. The air gets "stuck" in the system and slowly returns causing a repeating woo woo woo sound.
The HKS SSQV needs high air flow on the back of the valve and a strong vacuum source to pull the valve open. On some cars where the bov is positioned in an odd location, this may not be possible at part throttle. The turbo is creating lots of air, but little to no boost has reached the manifold due to a pressure loss across the IC.
You can re-locate the valve and/or get a stronger vacuum source to help combat this effect. You want a thick single line straight the manifold for a vacuum source, as short as possible.
Mild surge at little to no boost levels will not damage your turbo.
If you are worried about this noise, you may want to consider re-installing your original bypass valve in addition to the SSQV so that the air flow at part throttle can be released as intended. Otherwise, you may want to change to a push type blow off valve that will operate on less of a vacuum source.
http://www.935motorsports.com/hksbov.htm
hope this helps =)
Why do I have surge (a woo woo woo woo sound) on my SSQV?
This is a result of the valve not pulling the valve open, while the turbo compressor is spinning. The air gets "stuck" in the system and slowly returns causing a repeating woo woo woo sound.
The HKS SSQV needs high air flow on the back of the valve and a strong vacuum source to pull the valve open. On some cars where the bov is positioned in an odd location, this may not be possible at part throttle. The turbo is creating lots of air, but little to no boost has reached the manifold due to a pressure loss across the IC.
You can re-locate the valve and/or get a stronger vacuum source to help combat this effect. You want a thick single line straight the manifold for a vacuum source, as short as possible.
Mild surge at little to no boost levels will not damage your turbo.
If you are worried about this noise, you may want to consider re-installing your original bypass valve in addition to the SSQV so that the air flow at part throttle can be released as intended. Otherwise, you may want to change to a push type blow off valve that will operate on less of a vacuum source.
http://www.935motorsports.com/hksbov.htm
hope this helps =)
