Post by
915max »
https://forums.nicoclub.com/915max-u40565.html
Sun May 20, 2007 5:33 pm
I just read back in the thread about the rpm switch that you asked what VI was and I figured you would get the anser quicker in your own thread...
VI = variable intake--- a butterfly valve (similar to how a throttle body works) built into the intake manifold that allows air to travel into specific runners, or cylinders during certain rpm ranges, to produce more power. sorry.. I know it was a couple of days ago, but better late than never