I'm new to VW diesels. I've driven Hondas for years and have gotten 42 mpg from my '93 Civic EX. I'm used to 125 hp and a 6,500 rpm redline, so a diesel is going to be an adjustment. But I've always been intrigued by diesels and want to give one a try. I'm also considering a vegetable oil conversion. I've read some of the material on this board, which is a great resource by the way. Anyhow, I'm looking at a 1986 Jetta 1.6 NA and I want more power. I'd like to drop in a 1.9 L TD. I understand there are some differences in motor mounts, but it seems pretty straightforward. My question is, is it worth doing? Would it make more sense to find a 1.6 TD instead? Is the difference in performance that noticeable? Does anyone have hp/torque numbers on these motors? I also get the impression that 1.9 L motors are harder to find parts for and they more expensive than for the 1.6 L, especially in the U.S. What's been your experience? Thank you.