3V Intake Runner Blade Questions

That appears to be it. I could probably figure it out, but I did not look at it closely.

So what RPM does it open? I know the SHO opens at 3400 RPM, IIRC.

What are the purposes from Ford for putting the charge motion blades in?

Thanks for the reply so far.

Found this quote, which seems pretty typical of what I was thinking.

"At the end of each intake runner was a new-to-Mustang feature Ford called a charge motion control valve. At low engine speeds and light loads, these specially shaped control flaps closed to speed the intake charge and induce a tumble effect in the combustion chamber. That caused the fuel to mix more thoroughly and burn more quickly and efficiently. At higher engine speeds, the charge motion control valves opened fully for maximum flow into the combustion chambers."

ski said:

They're also supposed to increase torque at lower rpm's.

Click to expand...

Do you have an article "discussing" this?