Just my .2 cents... "If" the cost of a billet 54mm CA crank with mitsu GSR rods in a Ca18det is made, it would make 1169cc with easily available 5 speeds, aftermarket parts and ecu combos/piggyback etc. Toyota solid lifters fit straight in and rod stroke ratio would be allowing it to spin 10,000 rpm in equivalent piston speeds as L16 at 7300rpm possible 200kws at rears. If needed engineering rules are passed with big margins as its 300cc less cap. Considering the economy of my old 12psi 180sx back in the early 90s an 1169cc CA would spend 15% of the rotary to and from events :) something different.