I knew the B16 was gonna be the flaw, I'm not good with Honda motors. The only Mazda rotary that could possibly beat the RB26DETT with all possible mods(I've seen 1300bhp out of one) would be the engine found in the semi-retro Cosmos(Japan only), which I'm fairly sure is a 4-Rotor powerplant instead of the 3-Rotor RX-7 engine. The Cosmos engine was used in the PFS(Peter Farrell Supercars) RX-7 and he swapped motors because the stock engine couldn't handle as much power.