CA's sure are underated...
I had a CA18 silvia, 180kms motor, never been rebuilt, still had 100km jap service stick on the moror. Just bolt ons.. Disco potato .64 3inch full zaust power fc, fmic etc the lot (with an unopened motor and no aftermarket cams)
And i was running 22psi on it all day everyday for 200kw for over a year before i decided to buy a gtr... its still going.. would be close to two years now.
It even saw 25psi on a few spikefull occasions. No car could beat it off the line interms of acceleration.
I don't know what people do to blow them @ 1bar or 1.2bar but my stock ca was a bullet.
I wouldnt forge a CA just for 200kw, but then again maybe i was just lucky with it.
It never lost to any SR.