Turbo horn December 03, 2020 05:14AM
Hey guys doing my first build and I’m looking for guidance what are the positives to running a turbo horn I’m running a 3000rpm p7100 466 ci with a s366 turbo is there a big difference between running one and not running one?
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Re: Turbo horn December 04, 2020 10:31PM
I've seen a plain old rain cap work just as good as a 600 dollar guillotine, have to try on dyno
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Re: Velocity stack December 05, 2020 05:46AM
A long, long time ago in a fluid dynamics class in college I'd sit and calculate the differences of flow relating to pipe inlet shapes. Yes, the inlet shape does make quite a difference in the amount & the velocity of a fluid (air is a fluid) that will flow through a closed conduit (pipe). The goal of a velocity stack (turbo horn) is to smooth the airflow entering the pipe and to minimize air turbulence and to move toward a laminar flow condition.

So short answer, yes a velocity stack will increase air flow over a blunt entrance or plain pipe. How much... I don't know, it will depend on the shape/radius of the velocity stack, but no matter what it will move more air than without one.


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