Understeer & oversteer with the 962

By increasing coast does it make the rear more unstable then? How do you stop it from swapping ends?

 

There are multiple possible causes for the rear end becoming unstable and the car getting "tail happy".
The two most obvious are weight distribution, which can be modified through geometry changes (downforce and suspension also plays a factor, but I would suggest focusing on geometry in the first instance (i.e. front and rear ride heights)) and secondly you can effect / counter oversteer and understeer by changing anti-roll settings - which is the the main method I have used to correct this with the Sauber C9.
Sliding rear tyres when cornering is often caused by oversteer, which can be improved by reducing rear anti-roll bar and/or increasing front anti-roll. (Obviously I am not referring to power-slides, which can be useful in the right scenarios).

Take into account how much adjustment you have available and a few quick tests and you'll soon get it. If you had major problems with it and wanted to go to the extreme, then you could set the front anti-roll bar to maximum and set the rear to zero.

I was struggling to get the Group C cars feeling balanced for a bit, but got reminded of the anti-roll method to correct it, from a race engineer's comments during a Bathurst 1000 race I was watching online a couple of weeks ago.

Try it.

 

Thanks for the detailed reply, I do play around with the ARB in that manner but have not gone to extreme settings with it. I have not messed around with ride heights much but do find that adding positive rear toe makes the backend more stable, have had a go at softening up the rear suspension a bit as well all these little things seem to be helping bit by bit.

 

Agreed - regarding the rear toe.
Half the problem is everyone's different - I've seen plenty of people say that they like the Group C car default setups, where as for me, they don't seem to suit me at all. Some of that's going to be personal preference and some will be due to differences in driving style etc.

You'll need to do some basic trial and error testing and see what works and what doesn't for you.
Setting the anti-roll bars made the biggest single difference for me though - which is why I mentioned it.

 

Yeah, we are all different, it is interesting that people can have such different settings in order to suit them, I can't think of another form of sport where you can be so widely different to your competitor but still get similar results. I always soften the rear ARB too, how much do you usually adjust them?

 

Well other motorsports (like motorcycles) and downhill mountain biking are definitely the same - anything with suspension is going to involve a degree of personal preference.

Anyway - on topic (and to be clear, I'm not driving the 962C much at all, as I prefer the C9, but I have tried it out a few times) - for the ARB's - I'm on Max for the front (120N/mm) and zero for the back.
I tested quite a few different combinations in large and small incremental changes and these settings feel best to me.
If the vehicle physics or dynamics change due to developer updates or my car setup radically changes, then I might re-test them, but for now, I'm happy with those.

 

Think I will try out your ARB settings to see what it feels like.