I had a C20LET put in a 1.0 12v Corsa ''sting'' with a 5-speed box it was running about 240bhp,i don't honestly think you'd need more than that if you decided to put it into a corsa although 280 can be achieved very easily,its an easy conversion into any Corsa B or C - even with a full suspension upgrade the handling was terrible - it was a death trap! Courtenay Sport do engine mounts for this conversion they could probably make you one up to fit in to any Escort too,