Lately, after years and years of ignoring good advice, have been focusing with extreme concentration on the tire patches, slip angles, and toe settings.
When on a curving trajectory slip angles are the controlling functional driver/setup induced net effect variables that describe/represent the line of the car's direction.
Note by pretty much universal recognition of fact and by definition when slip angles are greater in front a car is understeering.
Seems to make some sense to back engineer setup variables from the apparent effect at the tire patch, which means, with primary attention to slip angles because at the tire patch that and heat is all there is.
A few days ago while touring Road Atlanta the logic of a madman suggested there is a direct connection between appreciating changes in slip angle simulation and the FBB latency setting found in core.ini.
Had always thought latency was time it takes to get effect from tire patch to steering wheel.
What is being transmitted?
Changes in slip angle.
Obviously it has to take some milliseconds for the tire to twist away from its straight lne orientation with respect to the rim.
Even if not very many fractions of a second, it is this twisting effect and the time it takes that is the critical feedback effect altogether, whether virtually or real, that is transmitted thru the suspension to the steering wheel.
But setting latency to zero, as many do, means there is no time component in the equation that represents slip angle transition effects?
No idea really because impression of what is happening is too much subjective fantasy.
Yesterday setting was 0.0185. Been increasing it incrementally and it is now 0.0385.
Seems maybe easier to keep the car stable and on line out near the edges, but what do I know?
New theory: Latency = time it takes to reach maximum slip angle?
Or something like that.
Plus, for a bit more insight, there's this from Lee...
GPL's FFB curve has its maximum force occurring a few degrees prior the the maximum grip slip angle. As a result, you should be able to feel when the steering wheel force goes light which means you are approaching the maximum grip slip angle just as real world drivers can do.
Edited by John Woods, Oct 02 2018 - 07:11 AM.