Civic EG

Just out of curiosity, Why when I had my ECU chipped did they set the VTEC engagement at 5200RPMs? Why not have it lower at around 4500RPMs? What is the logic in bumping it up? Is it for more power? Is it safer for the motor? What's the deal?

It has a p73 basemap with a 5200rpm vtec engagement and a 9k fuel cutoff.

should be where high cam starts making more power than low cam.
should be smooth as possible, none of that gay ricer crap.

Unless you have aftermarket cams, there is no benefit to changing the VTEC trigger point.

It's about as useless as having your ECU chipped without ever putting your car on the dyno.

^ wat he said

honda has vtec swtiching over where they have it for a reason
changin it can cause a lose of power, unless after market cam(s) are installed

but when the power band starts to fall off the stock cam lobes
vtec switches over and rides on the vtec cam lobes cont. the power band

thats the basic, u can get into more details, on how it works and this and that

http://en.wikipedia.org/wiki/VTEC