To control the extra vw style cold start injectors,you can use an adjustable pressure switch that controls the ground side of the injector circuit.I work on stuff with air brakes,and they use these swithes for things like brake lights,low air buzzers etc.The ones we use are a 'Hobbs' brand,1/4 NPT thread and adjustable beneath a small rubber plug.Stock they switch at around 4psi (for brake lights),but are very adjustable from there.You could use these to stage injectors at different boost points,wouldn't matter if you were wide open or not then.

 

Oh they work great for piston's, but not a rotary. I displace all 1.3L per revolution where a piston only does half. Unless it's a two stroke. I had a DGEV on 3 different civics that I had. Like I said I've allways been a carb guy, but they're not enough for my setup. My weber is a little too small and it has 2 45mm barrels. a 32/36dgev is smaller than the 12a stock carb. I appreciate all the help these are some great options!

 

Those damn engines need air, but that means they make power.

Randy