Quote:
Originally Posted by Telecolor 3007
For the command of the gearbox I thought of the next system: colum shifter with continius move (just moving up an down, except when you want to go into neutral or reverse - you need to pull the lever) that moves a stiarcase like wheel that pushes rods (or let them go - they have springs for returning into position).
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It's actually a very common thing in performance cars to install a typical automatic transmission, but without installing the electronic control at all. They will have a modified valve body that does not do anything automatically, but instead will just engage whatever gear is indicated by the shift lever. The shifter will go like this: 1 2 3 4 N R P. Common for drag racers and stuff like that (even though an actual automatic is better for time). This is pretty much what you're describing, right?
As for two injectors... the last cars that only had TWO injectors were old Chevy's with throttle body injection. Most cars today have one injector for each cylinder. However, because direct injection has become popular (as it has many advantages), it is only very recently started becoming a thing for manufacturers to have a set of direct injectors, and then ANOTHER set of port injectors. Because direct injection actually has a lot shortcomings. So many new cars will be having (technically) 2 injectors per cylinder.
In theory, if you wanted a car to have two fuel systems and be able to use either at the flip of a switch, you could do it. But you know, with a lot of engineering and fabricating. Why on earth would you even want two liquid fuel systems? Diesel, and any other liquid fuel that'll work in a diesel engine, can just be mixed together. The same for gasoline/petrol/benzine. The only other thing I can see is if you wanted one liquid fuel, and one gaseous, like CNG or propane. In which case, you wouldn't need an injector so much as an air valve. There are many countries where it's common to have retrofitted CNG cars, that can run on both gas or CNG.