What causes the lag

honda
accord

#1

Suppose I am cruising along the highway at 50mph. Then when passing someone, I step on the accelerator all the way to the maximum. When I do this, I notice there is somewhat of a lag. When I step on the gas, there is no effect immediately, then in about a second. The engine suddenly revs up and I can feel the acceleration. What causes this momentary lag and what is going on with the engine and the transmission when I step hard on the accelerator while I am cruising at say 50mph.


#2

The transmission is shifting to a lower gear. The engine doesn’t have enough torque to accelerate when it’s at low RPM’s in overdrive, so the transmission has to downshift before the car can speed up.


#3

Ditto to what Greasyjack said.


#4

"What causes the lag "
Keeping a straight left or bowed wrist at impact helps.