K-Jet provides a linear relationship between fuelling and air induced. Unfortunately in an "ideal engine" this relationship is not perfectly linear and depends on a number of external factors. The K-Star allows you to add electronic ignition and fuelling control withut replacing the K-Jet system. For a modded engine, (Island twin for eg) this makes a lot of sense - have you seen the mickey-mouse way the fuelling's controlled when under boost?! It probably won't do much for a stock PRV though. [disclaimer - I'm no expert, but I've spoken to people who are, and I'm trying to repeat to the best of my knowledge!] Martin #1458 - exhaust manifold gaskets tomorrow! jtrealtywebspannet wrote: > This looks interesting but what is it supposed to accomplish? If you > have a properly set-up and running fuel and ignition system what > further enhancement does this device provide? Does it improve > emmisions, economy or performance? It definatly will reduce > reliability as it adds another layer of complexity over the mechanical > fuel injection AND the ignition. All of these types of add-ons cannot > work if put onto a system that isn't operating correctly in the first > place so what is the point? > David Teitelbaum > vin 10757