Originally Posted by Scorpion,Oct 24 2006, 05:54 AM

ITBs are pretty simple in concept. I'll try to explain. When the intake valve opens there is a pressure differance with the cylinder sucking in air. Once the valve closes the air that was rushing in now hits the valve and bounces backwards in the intake runners. In a normal intake manifold it hit the wall of the plenium and bounces back and forth between the wall and the closed valve. This is why runner langth on a NA motor is very important, because you don't want the air bouncing away from the valve when it opens. With ITBs there is no bouncing, once the valve opens air is instantly pulled in and that why the throttle response is greater. Then add in the fact that you are increasing throttle body size by almost 300%

Originally Posted by VolkGT-N,Oct 25 2006, 01:50 AM

My shit finally comes in on Fri Nate. Im gonna pick it up that day if it does indeed arrive on time. If you want to meet me at All Version. LMK. They can answer any question you have on the ITBs. They have a couple civics with ITBs than can help you out visually too.

Roger

Originally Posted by jcarlton,Oct 25 2006, 10:31 AM

Wow! Look at the brain on Brad.