I think the biggest problem we all are having is that the diffrence between 1.05 and 1.06 is so drastic that we are fighting to grasp it.
This isn't really the issue for me.
The problem I have with the f1.06 existed in f1.05 aswell.
The nervousness over curbs and bumps.
I am fairly convinced that this is related to the very fundamental physics defined in the .hdv.
The yaw and pitch (especially the pitch) inertias are very, very low.
This means that a small compression in the front will accelerate the pitch motion of the car and cause the rear to bottom out or at least overload the rear.
So this affects the car over bumps.
But there may be another effect not entirely obvious.
I noticed toward the end of the season that even on the lowest of wing settings I was burning up my rear tires down the straights if the front was stiff unless I found some magic combo of fast bump rebound damping which would drastically reduce it. I think this unnatural burn may also stem from the fact that the pitch inertia is low (allowing the front to drastically affect the rear).
The roll inertia is higher than the BMW and afborro cars. I am not sure how this affects the car but I did notice that I found myself running completely without anti-roll bars in the 1.05 by the end of the season.
Could be the indicator that high inertia resisting roll pretty much voids the need for ARB.
Then I have some issues with all the aero changes from the stock cars to the 1.05 and 1.06.
These aren't grounded by effects found under testing but simply a concern of mine which is the same as what afborro said earlier: If ISI + BMW + Intel can't get it right, who can?
I wouldn't say this about everything.
Naturally it is ok to alter the engine torque curve. This is a simple change which can be made while keeping the same nature of the curve or even altering it in a way that is commonly known (V10 vs V8 for example).
Or to alter the mass of the car and make an estimate on the distribution for the inertia.
Or even to go as far as to reduce the drag effect of the front wing (if ppl feel the front wing should not influence drag as much, I know I read this somewhere a long time ago)
Or increase / decrease the overall downforce of the wings to match corner speeds and straightline speeds of the car in a specific season.
But to alter the "lift per yaw" or "drag 2nd order with lift" just makes me nervous. I can't help but to think there are some aero effects happening that aren't perhaps entirely correct.
One example; I think it was the force from lifting the front wing seems have a forward component (instead of a backward component). If you think about the way a wing looks I just can't see that happening. Incidentally DTCP mod has the same strange parameter.
Another thing is that the bump rubbers are stiffer (and less damped i think) in 1.05 & 1.06 vs the stock cars. This probably has it's effect on nervousness and curb stability at high speeds. I personally have never used a bump stop on a final 1.05 race setup.
In the end it all comes down to this for me:
I consider some tweaks safe and others dangerous and the f1c '5 & '6 touches too many of the dangerous ones. This is why my preference is the afborro mod. And this is why testing the 1.06 isn't really interesting for me. I don't know how the car is supposed to behave under the dangerous parameters. All I can say is that ISI and BMW hopefully at least have an estimate.
If it where only on the safe parameters I would be able to help. Looking at real life replays, trying to evaluate corner speeds, straight line speeds, revs, accelerations, grips etc...
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Actually I have no Idea how the car is supposed to behave. But keeping the dangerous parameters unaltered and only tinkering with 3 or 4 unknowns makes it possible to try and compare behavior with replays and do some tweaking to get as close as possible.
In the 1.05 and 1.06 car I need to first work for 20-30 minutes on making the car driveable and somewhat follow the correct raceline before I can even think about comparing my lap with the lap in a real onboard replay. This is what I meant in an earlier post that the car is either inherently stable or inherently unstable. BMW & afborro cars allow you to start lapping immediately. You have to work on the setup to be fast but not to make it round the track. This is how I would excpect that a f1 car comes out of the factory aswell. Engineers aren't going to design something inherently tricky and then hope and pray that the setup can be tweaked somehow to perform eventually as they get to the various circuits.
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-"Winning is like a drug...I can't settle for second or third in no circumstances whatsoever"
(Ayrton Senna)
i have no comment about it, lol. I will have to srudy your post for few hours to remember waht you said, haha. But at least i read it and i uderstand what your saying, even if i cant comment back. Thanks.