@Dethrone1427
Thanks for your continued work on this.
Had a quick few tests with this the last couple of days and whilst it's great out-of-the-box there's a few tweaks and amendments that could make it more historically accurate.
As-Is, my main criticisms are I'm still struggling to get decent heat into the tyres and the engine seems a bit to eager to blow up on me now! I've had 3 engine blow outs on short test sessions so far.
Comparing your default Brabham setup with references to the exsisting Brabhams in rfactor engined games, whilst most can be matched, there's some differences.. The rFactor 2 and Reiza Brabham (F Retro) share a lot of the same/similar setup values i.e diff settings @ Power:18, Coast:34, Preload: 7; much lower wing adjustment figures (F:4, R:8).
Toe, Camber, Caster, Packers, Tyre Pressures, Weight distribution are identical and the spring rates, bump and rebound and ride heightare within range of each other. Either the same guy did the physics or the data's reliable/the same source. They also both have the mass as 650kg (which is the kerb weight + driver) so I think you may have the cars 60-70kg lighter than they were.
You can adjust most of your default values to get close to that (some things won't adjust to the same values e.g weight distribution and front ride height) but the car will suffer from a lot more understeer compared to Reiza's car which has a more responsive front end and some lift off oversteer, imo..
I also noticed that the cars all seem to share the same gears file (looks the same as the F Retro). There's a handy reference on the rfactor dev blog which sources ratio data for the Hewland FG400 trasmission the Brabham, and alot of the rest of the field uses, which seems slightly different from Reiza's.
I'm probably sounding like a a broken record now, but have you tried using Reiza's engine .ini? Only tested the Brabham of the Cosworths but it seems to lack a bit of poke in the lower ranges. Top speed seems to tally with what I've seen of '275kph+' but the Reiza engines matches that (tops out around 280kph with the default FG400 gearing) but, what I assume is extra torque lower down(?), the back is more prone to kicking out under throttle on corner exit.
The Ferrari engine seems to be a down on max revs too. It should be ~12,000rpm and I've seen the top speed mentioned as ~310kph. It seemed to be more in with the v8s, albeit with more punch out the bends.
I'm only taking this from the internet and what you can find in other games so i'm by no means an expert. I'm happy to send/share anything that may help, though.