March 28, 2010what does thottle body velocity city stack do? it make a differnce on my vortec 350 it a 98
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March 28, 2010It seems to me that a velocity stack would be of little value on these engines. The intake runners are designed to be long and somewhat on the smallish side for torque at low to mid RPMs. They are designed to enhance air speed/velocity. Velocity stacks are usually to add length to the runners. These runners are already long.
If the manifold were "wet" as in carrying fuel (i.e. carbureted) i might think differently. But then again- if they were carrying fuel, the manifold would be likely designed entirely differently.
Just my 2 cents.
April 5, 2010i wsa just wondering if it was worth buying.. its only like 30 dollars
April 5, 2010So- Have you seen this component? What is the install procedure. Since it will not likely improve performance, will the install cause any issues?
I know some of the spacers that install under the throttle body actually cause some air flow PROBLEMS. With some others, you have to relocate fuel lines or sensors and the hassle is just not worth it. Just wondering.
April 5, 2010Open the throttle body to your truck and look down. You will see tubes running around inside, theres 8 of thoses. In the middle of the intake is the fuel center piece of the fuel injector system. None of this was designed for smooth air flow. This system works off of volume of air not velosity. If you give this intake manifold all the air it can take in, that will be your maximum performance with it.