Please people lets keep this on topic. I'm also genuinely interested in a more direct comparison for track work.
I know @
CSG Mike has driven both at the track, but not sure about anybody else.
I also don't think we can speak for the reliability of any of the systems at this point, most 86 have less than 30k miles and probably not nearly as much track miles. A big plus for the Rotrex IMO is the turn key solution - install, tune, and your ready to go. I haven't heard any install issues, like I've heard with pretty much every other kit on the market. That in itself is impressive.
Also to note, I've researched quite a bit and it seems a lot of track guys use Rotrex units and speak highly of the reliability. Seems like some pistons + minor engine work + c30-94 + miata seems a good recipe for relable 300whp. While the turbo track guys also like to say turbos are "just as reliable", every one I've seen speak up (online at least) has had at least some sort of problems at the track. More moving parts, heat, etc. is obviously going to present more challenges, but I would love to hear more direct experiences with turbo 86's at the track.