99 Honda civic

civic
honda

#1

strong text we know that civic high revs to shift. Isn’t there away I can have mine not shift that high so I can save more gas?


#2

No, there is no modification you can make. Thats the way they work


#3

That’s the oe thing i forgot. Its a automatic


#4

VTECH engine? they rev pretty high


#5

No just lil 1.6 I think four banger. I wish it was


#6

My 1999 Civic has a 5 speed. Will the automatic rev higher with the gas pedal pushed down far, but upshift at lower RPM if you are easier on the gas pedal?


#7

Your engine’s torque output would be insufficient at lower RPMs. Small engines need to “rev” higher in order to give you adequate acceleration.


#8

Such a thing is probably possible, but hard to say how a diy’er would do it exactly. First off , it depends on how your transmission shifting strategy is implemented. The basic strategy is always based on vehicle speed. But just that is not sufficient, b/c during accelerations the shifting has to be postponed a bit. In other words the speed based algorithm has to be “modulated” for engine load. Some vehicles use a cable from the accelerator pedal, others (like my truck) use a vacuum modulator scheme. And newer cars like yours usually use some sort of electronic control, often combined with a dedicated transmission computer running the shift-decision algorithm. Take a look at this web page plus the next one in sequence.


#9

If I remember right, the 99 automatic only had 4 speeds, so that’s another factor in its high revving