AMS explores the Genesis Coupe BOV
AMS did a little hunting around the boost system of the Genesis Coupe in an attempt to see if the BOV is related to the rev-hang issue that people have been reporting. Ivan from AMS installed a prototype BOV system on their Genesis Coupe 2.0T and has posted up his findings, that the rev hang issues seem to be fixed by installing a custom BOV setup. More information here along with pictures!
[Source: AMS Performance via Genesis Owners Forums]
To test this theory, I made a hard pipe to replace soft hose between the throttle body and the factory hard pipe. I installed a Tial Q BOV in the new pipe to supplement the factory BOV. With this installed, the delay getting back into power after a fast shift was nearly eliminated!
At this point, I had the Tial Q plumbed into the vacuum port on the intake manifold. Plumbed like this, you could hear the factory BOV and the Tial Q open at different times. The factory BOV opens first (when the ECU commands it) using vacuum from the vacuum reservoir and then you hear the Tial when the throttle finally closes and the manifold goes into vacuum. This again supports my theory.
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