Any ideas? Thanks. The reason i ask is because i felt engine inertia was too low on vanilla beamng cars like for example the bastion has 0.16 in its 6.5 v8 engine file and i was driving it before editing and its so hard to rev match like this and it feels like a 2 liter engine with its too(?) rapid rpm gain and loss. I tried changing to 0.329 or something similar and felt much better like this but why?