Correct, twin injectors per cylinder. The pair you see located off the valve cover iirc were for boost control rather than fuel. Weird.
Ahh good call, It looks like one is connected to a pressure source and the other vents to atmosphere, with a plenum in the middle connecting them. I guess it makes sense as they are just valves controlled by a solenoid (not piezeo like someone mentioned.)
Kinda makes you wonder if they did it this way because reliable solenoid valves didn’t exist, or because and engineer got smart and realized the same component(the injectors) in the spare parts bin could do double duty, as well as make changeout of a failed unit a breeze 
Here’s a stink for you Mafdark…which one of the Sauber chassis came first? Different between what you posted and what John posted.
Oh man, new motor swap for the 240??? Only $15k!!
Damn, there is nothing I can really see that gives me an indication one way or another. Just as a guess based on the the look of the suspension I’d say the one I posted is older.
Yeah a few tech things give away the chassis designation like the damper change over, brake duct configuration, etc…biggest thing though are the drivers names on the side of the monocoque :lol Schlesser/Mass car is C9 chassis number 5, the drivers that dominated in '89 to early 90. Wendlinger eventually ran in a C11 in '91(the picture John posted is a C11, not a C9)
I miss GTP/G-C 
I decided not to “cheat” by looking up the drivers names. Lol btw, did you see your email?
oh boy, 12x more likely to blow up
nubvr doing work
Yeah that’s “Richard craniums” drag car. 90 coupe quattro
Posted with TouchBB on my iPhone
Flat fan, twin plug, MFI, Biturbo 935 engine FTMFW sir. Pure vintage racing sex.
Oh and the ballerific pair of M97.80 engines sitting pretty next to the Flying Lizzard 997 ant too shabby either 
some serious amounts of win up above…and I’m not talking about the mustang bullshit