I also developed E10 fuel proof repair kits for Bosch k-jetronic mechanical fuel injection from the eighties and seventies. Used on almost all European luxury cars from that time. All my classic audi's have this system, and it is a bit sensitive to e10 fuel, because of a rubber diaphragm in the fuel distributor. For this reason, I developed kits to convert these cars to enable them to run on the more environmentally friendly e10 fuel
I have developed several classic car parts, mainly for my own use and for friends in the classic car community. For example, I designed a tachometer for the Volkswagen T3, incorporating modern electronics. Tachometers for these models are very hard to come by, as they were an optional extra at the time, and most vans were bought without options as utility vehicles. Only premium camper models got them. Today however, almost all of t3's get used as campers, because of their retro looks. This motivated me to design a tachometer. It is built around an ATMEGA328 microchip, as found in the Arduino Uno. The chip is used to convert incoming analog signals to digital which are then used to control steppermotor driven gauges in the dashboard. In this project, I learned how to go from an Arduino based prototype to a PCB design and how to work with steppers and sole microchips.