This was my series 2 RX7.
I put a series 4 13b turbo rotary engine in it. I fitted the following to it: Microtech engine management comp, Ford 9" LSD diff, holden stud pattern hubs, Toyota steelcase gearbox (about 7 in total) with custom tailshaft, 3" stainless exhaust, custom dump pipe, manual boost controller + much much more.
It did a high 12 second quater with wheelspin into 3rd gear.
It was the bigest waste of money I ever owned and was in my garage broken more often than going.