NerV-0-sol

Am I the only one who gets the new "Burn Time" wrong? I have a craft with 8 "Nerv" engines and plenty of Lf (over 40K) which is capable of doing about 10260 m/s according to KER and no matter how I place the maneuver node I always see "Burn TIme: 17m, 45s" which is a complete bull**** It happens even if I just add the node and don't touch it at all. My other craft works properly but it uses a "Poodle" engine so maybe the "Nerv" is the problem?