LuvmyS4

First off, hello and thank you in advance to all who read this. here goes my question. I recently had an APR chip burn completed on my 4.2 S4. shortly after completing this I noticed that my traction control no longer kicked in when I punched it off the line (prior to the Mod, I had to turn my traction control off in order to get a good launch). I am curious as to the cause of this. I have recently hit 100k. Not being a car-tech savy guy, there are a few things that cross my mind. Was this caused by the tune i.e. is the tune less agressive at lower RPMs? Does the tune directly effect my traction control? Or have I simply lost horsepower/torque due to wear and tear on my 100k old engine? My tires are in need of replacing...not sure what effect that plays. Any input or feedback would be greatly appreciated

josh

I dont think you will loose significant horse power due to wear and tear of the Engine.
And if you want better traction you better replace the tires.

LuvmyS4

yeah thanks. Im well aware of the effect of the state of my tires on traction.....The issue I am havingis not one of traction. Let me re-phrase....Before chipping my car, the amount of torque it was putting out was enough to engage my traction control off the line. This no longer happens.

Snow Rocket

I would almost suspect i tired tranny (i.e. worn torque converter - if your car has one) more than a worn engine. You'll start burning litres of oil before you loose any significant horsepower. There is alot of sloppy driveline to absorb 300+ ponies after 100K Km's.

Besides, new is new! I noticed a difference from 115,000 - 135,000. Imagine from new - 100,000.