Author Topic: Fuel Standoff  (Read 178 times)

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Offline fabr

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Fuel Standoff
« on: January 25, 2018, 09:07:04 PM »
"There can be no divided allegiance here.  Any man who says he is an American,
but something else also, isn't an American at all.  We have room for but one
flag, the American flag... We have room for but one language here, and that is
the English language... and we have room for but one sole loyalty and that is a
loyalty to the American people."
Theodore Roosevelt 1907

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"I fear the day that technology will surpass our human interaction. The world will have a generation of idiots" Albert Einstein  (IT'S OFFICIAL THAT DAY IS HERE NOW!)

Offline dsrace

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Re: Fuel Standoff
« Reply #1 on: January 26, 2018, 09:39:28 AM »
actually have seen that in person. not sure it was supposed to do that way back when but it did something similar. it was on a kawi zx9r .
Don't never argue with an Idiot!
Because he will drag you down to his level and beat you with experience

Offline fabr

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Re: Fuel Standoff
« Reply #2 on: January 26, 2018, 11:39:01 AM »
most people have no idea of what occurs in an intake tract. The vid I posted of the guy sticking his finger in the clear intake port also shows this. There are several quite powerful reversion pulses per intake(and exhaust as well) event that happen when a valve closes. Take a steel bar ,drop it on end and it bounces several times with each bounce being progressively less. That is exactly what happens when the air column(steel bar) slams into a piston(floor) before the intake valve closes trapping the pulse in the cylinder achieving possibly around 130% volumetric efficiency.  The goal of a N/A engine is to capture the first and most powerful pulse at max torque OR max HP depending on application.If the valve timing is off,there will be those pulses exiting the intake along with the fuel.That is what fuel standoff is. All engines will have this happen at some rpm point.
"There can be no divided allegiance here.  Any man who says he is an American,
but something else also, isn't an American at all.  We have room for but one
flag, the American flag... We have room for but one language here, and that is
the English language... and we have room for but one sole loyalty and that is a
loyalty to the American people."
Theodore Roosevelt 1907

-----------------------------------------------------------
"I fear the day that technology will surpass our human interaction. The world will have a generation of idiots" Albert Einstein  (IT'S OFFICIAL THAT DAY IS HERE NOW!)