BigBang
Active Member
But what would be benefit in FSI transmission? It's still 5q, isn't it? And what's the probability to find a Lupo GTI box?
Yes and no. Each engine has various fuel consumptions for same power output but in different RPM. It's usually plotted in BSFC map for whole engine power range. And according to this map, manufacturer tries to create gear ratios according to specific speeds car is usually driven. For our case A2, was never meaned to be driven most of the mileage on the highways but in the town and country road with limits 50 km/h, 70 km/h or 90 (100) km/h and when you look at the gear ratios for each gear and speed above, you will notice correlation between speed and RPM in specific gear. All of this means that there is missing 6th gear in 1.4 TDI because it revs stupidly high on the highway and petrols won't be much different...I always wonder when I read posts about adding an extra "long" gear.
Sure, a longer gear gives lower revs at the same speed, but, surely, you will now need the same amount of energy, at the lower revs than at the previous higher revs, since the load, (pushing the car along) is the same?
So, since the energy comes from the fuel, I can't see where the improvement is economy is going to come from.
Mac.