I see. That word "diesel" was just in my head because I read it on the page before Anyway; you shouldn't have to much trouble with this engine and if there are some; a fix should be not that hard. (You always only know when you drive it off course) You know where the volume fractions are for? They divide the filling into 16 spots. At low rpm when you push the throttle a bit, the car revs up okay. At maximum rpm, when you push the pedal that same bit; nothing happens and you lose speed/rpm. I always compare it with breathing through a straw; sitting at home on the couch watching tv; you're okay sitting at home on the couch watching porn; you get trouble breathing running a marathon; you die.....you need to open your mouth to get air So its very valuable; you can change a lot of how the car responds to the pedal!! More than you think. Look at my F1 2015 mod; this is a "special" engine and if you put the values of a normal (F1) car in there; the car is undrivable. I had to change that, but the power delivery is way better. I would suggest to try out some stuff with these lines as you "build the character" of the engine with it!
thanks for the feedback. for volumefract, i found this old thread to be a good reference, too http://isiforums.net/f/showthread.php/7151-Let-s-talk-about-new-engine-model-(engine-ini)
Here's a version you can test if you're interested. https://www.dropbox.com/s/0k0bv9rxrzhv5qo/SCES_919_Testing_011.rfcmp?dl=0