This sounds like an AC mini compressor to me, I've done the same idea on a 1964 cooper S years ago and found the main problem was the wattage output of the compressor was not enough to make a noticeable difference to the inlet temps hitting the inlet manifold,
However i invented a new idea which did work well, a self propelled supercharger running off of vacuum momentum spinning a small flywheel to produce the constant speed, I had a few hiccups though, not only did i have things similar to turbo lag but also over boost as it wasn't fully proportional to the engine intake, In the end i ended up modding it by adding a servo controlled butterfly valve to match the air intake, Managed to sell a few units but it never hit off like i wanted to!
Another gadget i made (My whole family came from an aviation background incl grandad who retired from Nasa 10 years ago) I always liked the idea of a venturi, I remember grandad telling me about in the 60's that Nasa used them as super cooling units with no moving mechanical parts, we made a Venturi unit that connected to the inlet manifold that super accelerated the air, causing it to freeze at the exit of the venturi before it went into the engine, it worked very well but we still had a major hiccup - the engine couldn't get enough air as it was being restricted through the Venturi!
Ideas like this have been done before and often cost too much at the overhead end, It's good for experimental ideas and maybe a few prototypes but it's just too darn annoying in the end!
You've just been done by a Twinny!