Let's go back to the particular VE of an engine...any engine. Doesn't that particular ve depend not only on cam overlap and such but also on the intake system to get the ve the engineer desires?
If that is correct then my hypothesis of anything actually changing the intake system for the better would have the effect of changing the ve from what was considered the maximum desired to more than that maximum?
Since these engines are built to be almost grenading anyway wouldn't changing that ve be highly noticeable to the driver?
Then, if so, it follows...NONE of these aftermarket gadgets do what they advertise?
Big Jim <img src="/forums/images/graemlins/pfft.gif" alt="" />