at this point i just need fuel injectors and some kind of engine managment. i was thinking of using rc 550 injectors and a 12:1 vortech fmu temporarily until i can afford an s100 and the dyno time to get it tuned correctly. Now i hear alot of bad things about an fmu but rev hard and drag kits still use them so what are the real downsides to using it? is tuning a problem with an fmu ?detonation? i plan on boosting my car over the winter months(as my car will be parked and cleaned up etc etc for the winter/spring) I am just getting anxious to get my car boosted, i am going to be running an ls at no more than 11psi, is a fmu safe for that amount of boost and obvious question is (which i know )is that should i just be patient and get hondata or go with crome or just get an fmu and be fine with it. i guess i need to know is if i bought an fmu would it be ok temporarily running 11psi daily and is tuning a problem with them? or does it even need to be tuned because i was told that an 12:1 fmu raises fuel pressure 12psi at high?! boost pressure so therefore if it is sending more fuel then i shouldn't need it tuned right or wrong? sorry for the dumb questions but motor swaps etc are easy but this turbo shit is a different world for first time diyer's, and i should do it right the first time or fuck up the first time and learn from experience but 85% of dragva is boosted and the other 15% might be like me or not AND no i didnt search first so if your thinking of posting that just ignore this thread..........................