Not rude at all man that's why I started the thread, I'm seeking people's opinions. To answer your question of why; why do any swap? I think simply because you love it, and want to see something you've built come together. As far as the whole sr swap goes, I know that it's tried and true, but the technology behind the ecoboost is a driving factor for me. They're direct injected, and they can take a beating with stock internals. There are numerous guys with bolt ons and wmi making figures deep into the 400's in hp and tq with the focus platform. With just being tuned and dp on the stock turbo guys are routinely putting down 270/350 to the wheels, they're torque monsters. The trans from the Nc Miata (05-2015) bolts on directly, and is available in a 6 speed. Ford offers a controls pack which eliminates the need for the stock ecu, and comes with tech support from ford racing. With the balance shaft deleted the engine only weighs 282 lbs (I believe it's roughly 50 lbs lighter than the sr). On to availability, the engine is available in 8 different usdm vehicles (I've done a wealth of research and the line of engines are identical), has been in production since 2009 in Europe, and is mounted longitudinally in the falcon in Australia. I know it hasn't been done before, but not too long ago people weren't swapping rb's and sr's into s30 chassis. Thanks for writing back man, hopefully we can continue the discussion and get others involved.