(the thread is already under Calibra but nobody had an idea yet, so I’m just trying it here) Well yesterday evening we talked to some acquaintances in the round and the topic was the following, now that my Cali slowly gets into the old age I want to convert next year to LET-technique called Turbo, and to him a nice retirement as a fun car on which he likes to mature with season marks in peace Now the stone of the wise again lies in the deatail, such a ie pleaded for a Z20LET because is more modern, others in turn a c20let or even as an alternative a turbo kit for an X20XEv ,zb of dybilas which is given there with 260hp…. because yesterday that was the impetus in a sense, a 3er 318is (had actually only 140 ps) Compact on the role experienced the delivered with a Lotec turbo kit now 222hp and 296NM Dremoment , so seems to be quite promising …. however, the BMW Maschi keep even in the “serial state” no modifications to the engine itself, fortunately with such a kit, which drive with approx.0,48bar…. what does this look like at Opel actually? Even more convincing I found then a 325i (actually 193hp) which supplied with compressor kit (also 0.48bar) 306 hp but how is that at Opel, what do you think is promising…… what would you do if…mfg