After a complete overhaul (new bearings, piston rings, ...) it was time to retune the fs 400
Running on straight fuel (0%) it does approx 6100 on a 20x10 on the richer side. Glowdriver is not working 100% right and has to go for a Softwareupdate.
After the tuning it was time to let the engine breath at the field. continued here: • FS 400 AR Part II