hi I have a 1992 jetta that I inherited from my uncle and I know nothing about it other than its gas a 4 cyl and has a manual trans can anyone tell me how I can find out what size engine it has I did some research but cant tell if its the 1.6 1.8 or 2.0 I want to do some performance mods and need to know the engine size also any thing else I should know any quirks or tips thanks in advance any help is greatly appreciated