Quote:
Originally Posted by ceedawg
So you mean to tell me that the PS2 EWG turbo needs a wastegate adjustment before you install it on the car? Sigh!!! 
How do you know where to adjust it to? |
It's actually not too difficult to do, unfortunately it does require access to BMW equivalent tech software (ISTA). After you install your turbo you or your dealership can run the wastegate procedure. It just basically opens and closes the wastegate to see if its within OEM tolerances. The procedure itself takes maybe 2 minutes. It's adjusting the wastegate nuts that takes time, mostly because it is a little bit of a tight space, but definitely not difficult by any means. If the wastegate isn't within OEM tolerances, the program tells you how far you're out and how much to adjust it by.
If I remember correctly one turn of the adjustment nut is 0.75mm and the program tells you how far you're out. Once you have the value you just do some simple division to see how many turns need to be done and in what direction to have the wastegate within spec.