JDM 3SGTE is 255bhp. But yeah, the C20LET Nova absolutely destroyed me but my GT is pretty much stock bar exhaust so what doya expect! Seen a few Z20LET Corsa's but never seen them go; bet they're pretty quick though! If they got the better gearbox, good tyres and LSD then they'll get the jump on a GT I reckon. Who cares though...its a Nova with an engine conversion. A fair test would be comparing a stripped out C20LET Nova against a stripped out 3SGTE GT. Then its the same; stripped out, lightweight car with a 2.0l turbo lump in it!