no ryan 1.8 td is more reliable plus if you turbo the 1.6 it d be faster than the 1.8 i m maltese too there was a guy who fitted a twin turbo on a standard 1.6l deisel on an escort mk4 too it was awesome and it took him 6 months to blow the engine. he used to run something near a cosworth in a quarter mile besides if you turbo the 1.6 or fit an 1.8 td from an escort you ll go way cheaper. the only drawback is that it s a bit heavier but if you install a deisel front end you won t have any problems