Hello Audi friends after a long time back and forth I decided now to make a motor conversion. a good known of me has an audio coupe type 89. the engine in the vehicle is a 5 cylinder 136ps. for little money I can have the part, because the car has a rear damage and several damage to wheel runs, body etc.. the engine itself has just limped 160,000 km on the clock, since before the accident a replacement engine came in (was only a few thousand km installed). the 1.8er is too sluggish for me and I drove a 5 cylinder sample and was very enthusiastic (especially of the incomparable sound). can you give me a few good advices for the conversion. what I also saw is that the engine bearings have to be rewelded. what do I actually have to rebuild everything? mfgg