Get a TB foil, and get the front edge honed like a blade edge.
Schrade wrote
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CentralCoaster wrote:
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anesthes wrote:
You absolutely need an airfoil if you have a blower. The air crashes into the pits of the throttle body, causing a huge restriction.
Why does it matter?
You have a single column of air moving through the snorkel. Keep in mind, 'single column', as a whole. The 'single' column moves until it hits a block.
The first thing that happens then is that the column as a single unit stops. Yes, as a single unit, it stops. If we could see the effect of this, we'd notice 'shock' waves bouncing BACK UP the 'broken' mass of air. Throw a rock into the pond, and watch the waves go outward, except for the ones that hit the sign in the water. They send waves BACK to you.
That lost movement of mass/energy cannot be recovered beyond the post (TB divider). No amount of vacuum will compensate for that lost mass.
Put a foil on the post, and the waves won't reflect to the same degree. They would reflect perpendicular to the net flow at worst, and have to contend with the unblocked remnant.
Ideally, in the TB, given that you
have to have the 'post', the deflection would be minimized by the 'foil', and into to 2 bores, which would spiral the air like the juicy jam in your toilet, into the smaller part of the bore.
Your point about the negative pressure pullin' in the air regardless is good. But what is stopping the 'fill'? Not only the TB post, but also the shock waves bouncing back up the incoming flow.
Add a blower, and
all variables are amplified - INCLUDING the shockwave bouncing back up the flow.