Top speed

[Brids17]

What affects a vehicles top speed? Putting a more powerful engine got me to my top speed faster but I’m still maxing out at 180km/h.

[dergerch]

Gearbox ratios / final drive ratio.
IIRC (don't quote me on that) smaller numbers == faster top speed. When you go <0 in final drive ratio, you're in "Overdrive", ie your wheels spin faster than the engine spins.

[Queen Niijima]

Ursprungligen skrivet av dergerch:

Gearbox ratios / final drive ratio.
IIRC (don't quote me on that) smaller numbers == faster top speed. When you go <0 in final drive ratio, you're in "Overdrive", ie your wheels spin faster than the engine spins.

To add on to the Final Drive Ratio, the higher numbers grant faster acceleration but lower top speed in general. In my taxi fleet, most are outfitted with a 3.08 FDR so they can go fast but may not get up to speed quickly. Thats where a turbo / supercharger intake comes in with a better radiator to prevent or minimize overheating. The overall weight of a car is also a factor in your vehicle's performance with additional modifications may or may not add weight though in practice, you won't see too much of a difference.

Ultimately, you have to mess around a bit to get the perfect balance between top speed and acceleration with the Final Drive Ratio as it also depends on the individual car as well. Since you can't at the moment change their drivetrains (RWD, FWD, AWD / 4x4), some cars are just going to be faster than others even if they are given the same engine upgrades as it is the case for my cars.