AVUS Grosser Preis von Berlin (1990) [FINISHED]

[BurningBridges]

Here is another update on the 1991 rules.

CU class is about to be cancelled for now. Dont want to dilute the rules with too many classes and I dont see much fun in making cars with sliders all maxed out.
Also afaik the cars for the 1990 rules will be at the end of their development, I dont see much potential after the end of the competition.

I dumped the semi slick rule as well. Can't hurt to have one rule less, if it makes so little sense. The rationale is that of course safety is increased and chassis problems can be compensated that way.

I am quite happy with the 40,000 budget for C1 class, I've seen myself it's a hard decision and some participants very cleverly make use of it. I therefore reduced the budget for C2 to 60,000. That is enough, a new car costs ca 30,000 out of the box, so you still have up to to 30K budget to spend on improvements.

rules_avus_9.jpg (39.72 KiB) Viewed 5208 times

[nialloftara]

Is minimum engine cooling still going to be a rule for 1991, didn't see it on the chart.

[BurningBridges]

As it says on the chart, car + engine minmum 50 reliability, like this round.
I think with hindsight, the 50/50 requirement was perfect. If cooling gets under ~50% reliability drops to 0.0 anyway.
I played around with cooling=cooling required and it was stupid, cancels out most hp gains.

[BurningBridges]

1991 and onward

The AVUS racing comitee has proposed to rule out the Porsche 356 from future competitions.

The idea is not to punish a certain car, but we see no reason to further develop a car if it has already proven to be the very best on the track. It is therefore our plan that all previous winning chassis can no longer be entered in the following year, unless there are reasons against it. Reasons against it are of course when there is no indication that the car was possessing any clear inherent advantages.

In 1991, 356 based cars can still be submitted but will be placed in a special "record attempts" event. It can still be showcased and ranked in speed and lap records but not the main race.

The teams have time to make their statement regarding this. We propose this rule either for
a) all classes
b) only C2 class
if b) this would mean that 356 can still compete in the 1200/2400cm³ event.

[AirJordan]

I think that 356 will not be as efficient in more powerful classes because (if I am not wrong) it can only have 205 tyres and no awd so it will not be as fast of the line. Maybe it will stay a top speed king but not a lap time one.

[BurningBridges]

Request for comments, regarding fuel consumption (1991)

To make this challenge more interesting we also have been working on a completely new rule regarding fuel consumption.
Under this rule the final classification would reflect how many times a car has to stop to refuel. This would make it more important to have some fuel efficiency and not only the highest performance per liter.

The rule is not complicated and it is entirely logical. I will only outline it in detail so that you can see how it could be calculated.
It also can be easily done by Excel. The only open questions (i.e "magic" numbers) would be the

a) tank size Cf
b) time for 1 refuel Ts

This is of course not meant to penalize the cars with the most powerful engines unduly. I would try to make it so that not the car with the best fuel consumption wins, but only that lower powered cars with better fuel consumption can make up some time.

To have some even numbers AVUS 1991 would be made a 1000km endurance race of 121 laps

1.) Calculate fuel capacity

Cf = total car weight / 10

That means a car with 500kg would have a 50 litre tanks, a car with 750 kg a 75 litre tank and so on. This somewhat penalizes light cars with high fuel consumption.

2.) Calculate the total fuel requirement from race length (1004.3km) and fuel consumption / 100 km (F100)

FC = consumption / 100km
Ft = total fuel consumption

Ft = 1004.3km * FC / 100

3.) Calculate the number of tank stops

S = number of stops

S = FLOOR ( Ft / Cf )

(not complicated) this means the number of stops is the of total fuel consumption in the race, divided by tank size.

4.) Now, for the final result

Add the total time for tank stops, according to this formula:

Tl = Lap Time
S = total number of stops
Ts = time per stop
121 = number of laps
T = final race time

T = (Tl * 121) + (S * Ts)

This is my suggestion. If this sounds complicated it is not. I can supply a simple Excel sheet in which you can check the calculation.

The next step would be to compare the race result with the result under this rule, and then I will see, if this can be made to work.

[BurningBridges]

Here is a simple Excel file, that you can use to check the calculation.

You can change fuel consumption and tank size, as well as the time per stop

This for the same car with 50L tank. Heavier cars would have an advantage proportional to their weight, by larger tank capacity.

fuel.jpg (35.72 KiB) Viewed 5136 times

[BurningBridges]

I think that 356 will not be as efficient in more powerful classes because (if I am not wrong) it can only have 205 tyres and no awd so it will not be as fast of the line. Maybe it will stay a top speed king but not a lap time one.

We will see after the race. Afterall, this years competition is not over ..

[BurningBridges]

I made a slightly colorized version of the track for for the modern era, not perfect but perhaps a bit less bleak to look at.
Layout etc is the same so you can use both version concurrently and get the same times.

(Version 2.2) Avus 1991 http://automationgame.com/phpBB3/download/file.php?id=18381
http://automationgame.com/phpBB3/viewto ... =36&t=5740

[BurningBridges]

Just a quick reminder, tomorrow is the last day for submissions.

[asdren]

Just before sending my submission, i suddenly saw that i had a racing exhaust on ma car.. NOOOOOOO! Lost a whole second. Damn it.

Most of the entries seem to be turbos, hmmm makes me question my decision going NA.

[BurningBridges]

Sorry, that was a stupid rule. I just could not change it after I had accepted submissions.

As to N/A, I fell into that trap myself

[asdren]

If strop is using a turbo, there's gotta be a reason to it

[BurningBridges]

Thats actually what I try to change with the tank stops.

Under tanks stop rules you would be one of the cars that benefit most, and gain a few minutes over a 1000km race. I just did the calculation, you'd need just 1 stop while some of the turbos need 3 or 4. There is even 1 car that could go 1000km with 0 stops but it was not competitive.

I have the Excel calculation ready, and I can show a sample calculation tomorrow, once the public result is out. It would not shuffle the classification much, but it makes a difference between cars very close to each other.

[BurningBridges]

Berliner Motorsportmagazin 1/1990

“Rausch der Geschwindigkeit”

For the last two weeks the first motorsports event on the reopened AVUS hosted a prestigious international field from the Emirates, Italia, Indonesia, Slovenia, Spain, USA, New Zealand, Japan and Germany (3 teams)

We’d like to thank all participants for their hard work and incredible results. We were really impressed by the participation and the quality of cars.


Koolkei

The first week saw the first batch of entries, with Koolkei from Indonesia taking an early lead. At this moment his best best lap time was 2:10,11



On the intermediate weekend we decided to reveal our own (Porsche 356 based) car which we hoped would give a push to the competition ( 2:04,47 ). It spoiled all chances we had for the track record but afterwards times quickly began to fall under the 2:00 minutes mark, so we consider this a good move at the time.


Airjordan, the first of the second batch of Porsches

The second week brought more Porsche 356 based cars, and really unbelievable times. AirJordan reached 2:05,98.



Then Nialloftara (United States of America) entered two of his cars with martial names and undertones of Oedipus complex (“Terror”), and insane 404 hp turbo engines. The RWD Terror reached a record speed of 356.1 km/h and completed the first sub 2min time in the track's history ( 1:59,09 ) ever. It looked for a moment like this was already the end of the competition!


Markus 817

But Markus 817 (Japan) thought otherwise. On Friday, Matoyama Motors car achieved an even more unbelievable 1:57,24. Markus could later improve this to 1:56,99 but even that was not the last word.

Engines at this point maxed out at over 400 hp and began to resemble Formula 1 engines.


strop/nialloftara

The race was won on the very last day. And it was the combined efforts of strop’s tuning and nialloftaras engine that produced the absolutely fastest car. Together they could beat markus 817’s time by a half second (1:56,32). Congratulations to the winners strop and nialloftara and markus 817 valiant second place!!

There were long faces of our own DMW engineers as they had hoped to compete for the absolute lap record, but quickly relaxed once it was realized that our FFWD design had absolutely no chance. Our own sub 2:00 turbo FFWD was abandoned around 1:59

The race was meant as an international motor festival, and a lot could be learned about the characteristics of the track. Eventually, turbos completely dominate the field. The most valiant of the N/A cars (Asdren’s V12) was able to get to 4th place and leave most of the turbos behind. An impressive feat, considering an almost 100 hp gap!

Special awards


GDD Southing

GDD Southing won the election for the most beautiful car.


Asdren C-speedster

2nd Asdrens C-speedster


3rd Microwave

And 3rd Microwave Avus Special