Hi All, first post, looking for some help identifying what's gone wrong here.
08 MS3, I built the motor about 3k miles ago (GF had driven car through a "small puddle" and sucked water through CAI). Anyway, car had been running well enough after the rebuild that I didn't suspect anything was wrong. On a whim I got a cheap borescope to check things out prior to installing new parts / tuning. The pistons are destroyed, see pics, they all look like this. Clearly, I've screwed up. Because it's all 4 I'm thinking timing or fueling but I'm hoping to get some opinions.
Background info on build: This was my first full build so nothing is off the table in terms of stupidity, although I consider myself mechanically competent. Basically all internal components were replaced due to water ingress, I can provide more details if necessary. Running an AP and cobb ots stage 1 tune. Car has a CAI and I did the following during the rebuild: hpfp, injector seals, in-tank fuel pump, bsd, K04 CHRA, rmm, 1 step colder plugs. I have been loosely monitoring fuel pressure, engine temp, BAT, AFR and everything has seemed ok although I didn't take logs. I have not been watching knock retard.
08 MS3, I built the motor about 3k miles ago (GF had driven car through a "small puddle" and sucked water through CAI). Anyway, car had been running well enough after the rebuild that I didn't suspect anything was wrong. On a whim I got a cheap borescope to check things out prior to installing new parts / tuning. The pistons are destroyed, see pics, they all look like this. Clearly, I've screwed up. Because it's all 4 I'm thinking timing or fueling but I'm hoping to get some opinions.
Background info on build: This was my first full build so nothing is off the table in terms of stupidity, although I consider myself mechanically competent. Basically all internal components were replaced due to water ingress, I can provide more details if necessary. Running an AP and cobb ots stage 1 tune. Car has a CAI and I did the following during the rebuild: hpfp, injector seals, in-tank fuel pump, bsd, K04 CHRA, rmm, 1 step colder plugs. I have been loosely monitoring fuel pressure, engine temp, BAT, AFR and everything has seemed ok although I didn't take logs. I have not been watching knock retard.
