Changing all 4 pistons on Audi S3 2.0tfsi

[S3Alex]

bit of an update - new wossner pistons and PEC rods fitted by the garage and said the car feels good and strong however the ignition timing is out when they were on a test drive and had it plugged in at the same time...they have mentioned speaking to the company who tuned it and get them to tweak the map - does this sound about right?

It's possible,and certainly should be done in any case after such a lot of changes.

The Wossners have a slightly lower compression ratio and that may be the problem,but I don't know.

 

[kdrak]

S3 8P stock has a 9.8:1 compression ratio and not a 10.5:1 !

 

[abmat]

Way to resurrect a 5 year old thread