I think I posted this before last year, but back then it was
just a hunch. But now after the past 2 months of observing the SBST
Citaros & their acceleration, I can say SBST definitely did do
something to the ECU or engine mapping of the Citaros to make the
rev limiter cut in much earlier in the first 2 gears.
Because over the past month, I've observed BCs that are
chionging their Citaros, so that means from 3rd gear onwards, the
kickdown happens as usual.
But somehow, the gearbox now
shifts up from 1st to 2nd gear & then to 3rd gear much earlier
at lower revs than before from the engine sound heard (the 'before'
period is when we can distinctly hear those so-called 'kickdowns'
and the accompanying turbo boost sound). I don't hear any Citaros
doing the kickdowns from 1st gear to 2nd gear or to 3rd gear
anymore.
And sometimes at super low
speeds, say 5kmh, the gearbox shifts up abruptly and jerkily from
1st to 2nd. This is esp evident in the CGA svcs' Citaros, as they
turn out from the berths and attempt the incline to the next
PTB.
Guess this is a way SBST is trying to extend the lifespan of the
Citaros' engines & turbos?
