use of different engine on mx5 gearbox

[Ianr]

I have an MX5 engine linked to MX5 gearbox and a propshaft linking to a Sierra diff. The prop did not cost that much to have made up (about £100). If you are concerned about the Mazda engine it is really well made and is easy to work on - and - if you choose correctly give more power than a Pinto.

Early 1.6 MX5's gave 115bhp then when emissions regulation took over in 1995 they dropped the power to 88bhp upping it again to 110bhp with the Mk 2. The 1.8 engines have always run at about 140 bhp while the 1.6 imports were always 115bhp.
Simples