AC SF70H League – Belgian GP

20 thoughts on “AC SF70H League – Belgian GP”

1. When I watch the timing stats I wonder how can most of our league drivers compete against other having the time to run 225 laps per track… Anyway I will do my best. :)

2. The only way i could do 200 laps is if i have a free weekend which is rare,, i’m gonna prac for 1.5h now.. only practice i have :D

3. Same here or I must divorce. Lol… Anyway I really like this very competitive and serious league. :D

4. I was at circuit 2 hours before the start of the race. I could not make long stints. I had no idea about tyres. I just made a few minor changes in setup. Despite all this, I had strong pace and I loved that.

   Obviously I could not follow the rules because I came to race at the last minute. I learned that the race start with US at the start. I did not know about using DRS within 1 sec. I had downloaded the DRS application but it was not open on my screen. I used DRS in first couple of laps as illegal. Then I catch the warning beep coming from apps and understood the situation. When I opened the application I saw that I used DRS 6 times. I apologize to all the driivers for this.

5. “Discord” is not optional for this reason – you were not alone :)

7. Terrible blunder at the start took the shine off things, but there was good hard racing to be had.

   Oh dear though, my start. I managed to slip in my chair and slipped off the pedals. Utter confusion, random foot stabbing and then crash. I ruined at least one other person’s race so can only apologise, no excuses.

   Stopped after lap 1 because I had a lot damage, I was always going to pit stupidly early anyway and there was a snake of 5 or 6 six cars all fighting like mad ahead. Good pace on the softs, but the damage repairs at both stops plus my delays at the start plus the time lost when I nearly overtook three cars in one go around the outside of Blanchimont but just got clipped by the last one meant I couldn’t make all that time up and the extra pitstop.

   Great car, great track and the tyres were interesting too – really big gaps in the times depending on where you were in your strategy.

8. Big opportunity thrown away by me as my race pace was spot-on “for a change”. Alas, I spent 10 laps stuck in traffic (even after diving out of the traffic on lap 3 to find some space) and lost 2 – 3 seconds per lap. I won’t be running medium downforce here again. Anyway, great/frustrating (delete as applicable) fun trying to find a way past Husky that didn’t involve him sailing back past me again on the Kammel straight.

   Stewarding will tell-all, but overall I’m quite proud of the way you all drove :)

   RE: CAR CHANGES FOR NEXT WEEK – I have calmed down the fronts in particular, but unless I reduce downforce we are still going to get these big spikes in the high speed corners – Kunos are too clever for me with this thing called “physics”…. but I think these tyres make it really interesting especially with so many high-speed tracks this season.

   For normal people who enjoy life :) please stop reading this now, but for those who are interested, here’s what I did/tried to do with the tyres>>>>>>>>>>>>>>>>-

   There are 3 co-efficients of friction you can adjust – I would describe them roughly as follows (though I am no physicist) – 1) “Traction” – friction through braking and accelerating (they call this one SURFACE_ROLLING, but really it’s traction) – 2) “Rolling” – I would call this “longitudinal” friction, heat built up by driving fast over the tarmac 3) “Friction” – more to do with lateral grip – if the car doesn’t slide, the heat has to go somewhere.

   I figured quite logically that reducing 3) and increasing 1) & 2) would give me the desired effect of calming the tyres in high-speed corners. However after a lot of tuning & testing, even running 2) & 3) on zero and 1) “Traction” at a high-level, the overall results were very similar. Yes I drove out of the pits and by the end of the Kammel straight I had silly hot rears and freezing cold fronts, but by the time I had gone through Pouhon the fronts had gone crazy too – and a LOT more than the rears!

   So back to square one! I kept the values as they were (which was basically the Kunos values, but I have 5 of them instead of 2 as Kunos were too lazy to make 5 “truly” different compounds.

   Next I started to play with the heat transfer. Loosely speaking, there are two coefficients here:- 1) the heat transfer rate to the rubber in the tyre and 2) the rate of transfer from the rubber to the air/gas inside the tyre. By reducing 2) I managed to get more consistent results as this had the overall effect of warming and cooling the core temperatures in a slower and more progressive manner. They will take a bit longer to warm up, but probably not even enough to notice. This is what I stuck with in the end.

   I could of course, simply reduce the overall heat and get them perfect for Spa – that was never going to be a problem, but the issue then is that even the Ultras could not get up to operating temperature on tracks like Monaco, Singapore & Abu Dhabi and I want our car to be better not worse than the Kunos version in this respect.

   Anyway, now I have “some” insight into how difficult this is for Pirelli and that’s for sure why they went for much harder compounds last season, just to give themselves a break!

   Edit – I could also have widened the operating ranges, but that’s a bit of a cop-out. Still an option though.

9. Intersesting. As simracer we all want perfect tyre physics as they are the link to the general FFB behavious. I have done few laps on RA with your adapted .acd and I have to admit the feeling is really good. Otherwise the widening option should be tested during long stings.

10. Thanks a lot Bob. ;)

11. Not quite sure why I felt the need to get that off my chest, just so frustrating trying everything for hours and not finding it working quite as I expected.

12. Good race overall , felt kinda bad to hold up Deacon after i had a slip up at malmedy which caused some quite bad aero damage on my part which had me struggeling in the corners quite a lot and meant i held off deacon in the corners and with a low aero set-up meant deacon couldn’t get past me in the straights.. Could have been a race long battle if my car wasn’t messed up i believe but nevertheless.. A very enjoyable race!

13. Imagine how difficult it will be to overtake in RA. :)
    I reviewed my opinion about RA. It is a pure insane but so funny layout. I wonder how many DNF we will have at the end because driving at a descent pace with full tank is a real challenge… ;)

14. Concerning last race, expect a lot of work for stewards. According stracker, only 2 drivers among the grid didn’t have contact/collision(s) with other participants…

    • I didn’t see too much on the video stream, just a couple of key incidents. There is more lag on the list than I have seen for a long time though.

15. BTW – Can I be the first on this post to congratulate Mostafa :) He made a really difficult strategy work.

16. Unfortunately the video stream doesn’t show everything.
    Yes indeed. Congratulations Mostafa.

17. Nice race. :)

18. Just tell me when you want to review the incidents… ;)

19. Congrats to Mostafa from me too. Joining a pretty exclusive club of drivers who’ve won on their FtF league debut :)

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