Gavintwopies

The S1 and S2 gearboxes are good for 200 to 250bhp and after that they don't last very long like you said.
I am using a 130 ps 16v Zetec for my convertion it has higher profile cams and oil jet under the pistons. it should make 200 bhp easy as long as i keep the charge air temp down. so i will put a large intercooler on.

ferd