throotle body modification or switch - PeachParts Mercedes-Benz Forum

RBYCC · #15 01-23-2012, 11:43 PM

Quote:

Originally Posted by MAG58

lolwut? I'm in for an explanation of how increasing the plentum volume post throttle valve increases air quantity.

Why explain something so basic......

If you increase "plentum" ( your spelling ) volume then by definition it increases air quantity or amount.
So let's define the words....isn't volume the amount of space occupied by a three dimensional object such as a plenum ? And doesn't "amount equate to "quantity" ?
You may be confused with air flow or CFM which isn't altered and I didn't mention.

TB spacer increases the plenum volume of the intake manifold.
This gives the engine a larger plenum to draw its air from at each firing cycle, so velocity in the intake manifold is increased, because it no longer has to rely as heavily on the throttle body for air at each given firing cycle.

What do I know, unlike you I'm new at this, so don't believe me, just read a few SAE papers on the subject.

Quote:

Except in a carb there's fuel flowing past the throttle valve. That's kind of a big difference.

Once again you're correct, forgive me for being simplistic in a world that is so complex...