rFactor Mazda 787B

Jens Kraft

Mercedes C9:

Engine
Configuration	Mercedes-Benz M119 HL 90º V8
Location	Mid, longitudinally mounted
Weight	191 kilo / 421.1 lbs
Construction	light alloy block and head
Displacement	4.973 liter / 303.5 cu in
Bore / Stroke	96.5 mm (3.8 in) / 85.0 mm (3.3 in)
Compression	8.5:1
Valvetrain	4 valves / cylinder, DOHC
Fuel feed	Bosch Motronic MP 2.7 Fuel Injection
Aspiration	Twin KKK Turbos
Power	720 bhp / 537 KW @ 7000 rpm
Torque	810 Nm / 597 ft lbs @ 3500 rpm
BHP/Liter	145 bhp / liter

Drivetrain
Chassis	light alloy monocoque
Front suspension	double wishbones, coil springs over shock absorbers, torsion bar stabilizer
Rear suspension	double wishbones, push-rod operated coil springs over shock absorbers, torsion bar stabilizer
Steering	rack-and-pinion
Brakes	internally ventilated discs, all-round
Gearbox	5 speed Manual
Drive	Rear wheel drive

Dimensions
Weight	905 kilo / 1995.2 lbs
Length / Width / Height	4800 mm (189 in) / 1980 mm (78 in) / 1070 mm (42.1 in)
Wheelbase / Track (fr/r)	2700 mm (106.3 in) / 1600 mm (63 in) / 1550 mm (61 in)

Performance figures
Top Speed	370 km/h (230 mph)

Judging by your post you are no doubt interested and definitely
targeting in question. I can inform you that my research with regards to
the suspension and tires have been crowned with success, and in General
found an excellent basis for a realistic physical model. The first to
work out the Mercedes C9. Now an important aspect of adjustment and
tuning of the engine and gearbox. What is required. At 7000 rpm (720 bhp
- power I already asked) it is necessary that the machine under certain
settings accelerated up to 370 km/h (5 speed Manual!). Such tests can
be carried out for example in the LeMans 1979. Further, the engine he so
to speak immortal)), not too hot, never burn out, and apparently
practically does not wear out. But the dynamics and the turbo effect
provides excellent. If you find other varanty, without a doubt will be
the meaning of the review. And if you have no time or opportunity to
provide such help, please report it to. Then I'll rely only on their own
strength. P.S all the necessary materials for work is ready to give you
in any convenient for you time. That is the basic mod and developed by
the car.

Mike Becnel wrote:

I look forward to seeing the first car! The Group C cars are gorgeous.

I am downloading the files at the top of this topic to see the history of the mod.

Thanks for working on this!

The cars of the Group is in my opinion the most interesting phenomenon
in the history of Motorsport and modernization quite in vain not shown
due enthusiasm and now we don't have any qualitative modifications on
this topic.

Guillaume Siebert wrote:

We are working on our own Group C mod as well (since 2010 so I guess it will be ready in 2018 ).

A little bit earlier would be "magnifique", so I can win this championship with a 787b

I'll look forward to such a championship!

Vadim Sadoshenko wrote:

Judging by your post you are no doubt interested and definitely
targeting in question. I can inform you that my research with regards to
the suspension and tires have been crowned with success, and in General
found an excellent basis for a realistic physical model. The first to
work out the Mercedes C9. Now an important aspect of adjustment and
tuning of the engine and gearbox. What is required. At 7000 rpm (720 bhp
- power I already asked) it is necessary that the machine under certain
settings accelerated up to 370 km/h (5 speed Manual!). Such tests can
be carried out for example in the LeMans 1979. Further, the engine he so
to speak immortal)), not too hot, never burn out, and apparently
practically does not wear out. But the dynamics and the turbo effect
provides excellent. If you find other varanty, without a doubt will be
the meaning of the review. And if you have no time or opportunity to
provide such help, please report it to. Then I'll rely only on their own
strength. P.S all the necessary materials for work is ready to give you
in any convenient for you time. That is the basic mod and developed by
the car.

Hey Vadim,


Thank you for your message.
Do you use Google Translator?
I try to write very simple.

The engine does practically not wear out.
That is correct.
It is able to last the race distance.

What we can research: Where are the limits of the engine.

Do you have information from the history, how many RPM the engine could stand "forever" and how many RPM would wear the engine down?

Does the Turbo have an air restrictor or a maximum pressure?



The former mods have engines which u can always run at maximum settings. At my Watkins Glen race (6 hours) my first teammate told me, that it is better to run the engine not on full rpm, but that was not correct. They can last the race distance many times.

In reality excessive heat and rpm can destroy the engine easily within 24 hours.

Remember 2010 or so, the Peugeot all failed at 23,5 hours.



I very much like to give different cooling options on the car, because:
If you are a driver that drives a long 5th gear you can use less cooling.
at 400rpm below maximum u save 2C or 3C and mechanical wear.
i definately want to add cooling options that are also too less cooling, like in the 1991 F1 mod, where brakes and engine can overheat.
Different Temperatures of the air also must be considered for the car set-up.

I very much appreciate to work out a setting, where the engine will heat up 4C or 5C over the usual temperature on a long straight.
Because in rFactor the engine is -mainly- cooled by the water circuit. And there is a bottleneck in the heat transition, which is not simualted in the mods we drove already.





I have not researched: If you can adjust the brake disc wear depending on the temperature or if this is a fixed value by rfactor.

So,
the work on the physics of Mercedes C9 passed the stage of the alpha
version and is ready to move in beta. Suspension is almost ready, there
may be no significant adjustments. I am convinced that its work is very,
very close to the real behaviour. But the most difficult moment in the
study of physical models of these machines, it is the creation of
realistic dynamics. Having studied the many and often conflicting
sources, which constitute in most cases. The machine reached a top speed
of 370 km / h and had the dynamics from 5.7 to 6.3 seconds during
acceleration up to 150 km / h. Apparently depending on the quantity of
fuel or likely setting the gear box. The images are presented some
results of my work in this direction.

Similar results I seem to be encouraging. However, still remains to be a
serious work on the wear and tear of the engine and temperature characteristics.
It seems to me that the more eloquently I speak, the more foolish it is translated .


One of the Safety Car..I am sure that in excellent mod, must be full-featured Pace Car.
To add another Mercedes 190å...

Vladim,

Be aware that the wheel a player is using will have a dramatic impact on how the car feels to each player. It is a game, not a real car. I just upgraded from an old FFB wheel to a G27. All my old setups are now completely undriveable.

My point is you should leave a large amount of room for people to adjust the cars even if that slightly lowers the realism. A realistic mod that only those with the top equipment can use will likely fail.

Mike Becnel wrote:

Vladim,

Be aware that the wheel a player is using will have a dramatic impact on how the car feels to each player. It is a game, not a real car. I just upgraded from an old FFB wheel to a G27. All my old setups are now completely undriveable.

My point is you should leave a large amount of room for people to adjust the cars even if that slightly lowers the realism. A realistic mod that only those with the top equipment can use will likely fail.

If
I understand correctly, you believe that in the settings of the car
will be fixed or not functional. It is just the opposite! Possibility of
adjustment of vehicles will be very broad and allow to set up the car
as you wish. I only gave an example of the car, in which he attains its
maximum speed of opportunities!

Moreover the fashion to add the plug-in and settings upgrades, which will allow a fully featured used gearbox and clutch the G25 and g27 for example.

Mike Becnel wrote:

Vladim,

Be aware that the wheel a player is using will have a dramatic impact on how the car feels to each player. It is a game, not a real car. I just upgraded from an old FFB wheel to a G27. All my old setups are now completely undriveable.

My point is you should leave a large amount of room for people to adjust the cars even if that slightly lowers the realism. A realistic mod that only those with the top equipment can use will likely fail.

i think that u simply drive differently.

the wheel cannot influence the physics.

if u have utter will to drive a world record u would go to the limit anywhere and can drive it with each wheel.
what i mean is: the wheel influences the driver only

Vadim Sadoshenko wrote:

Mike Becnel wrote:

Vladim,

Be aware that the wheel a player is using will have a dramatic impact on how the car feels to each player. It is a game, not a real car. I just upgraded from an old FFB wheel to a G27. All my old setups are now completely undriveable.

My point is you should leave a large amount of room for people to adjust the cars even if that slightly lowers the realism. A realistic mod that only those with the top equipment can use will likely fail.

If
I understand correctly, you believe that in the settings of the car
will be fixed or not functional. It is just the opposite! Possibility of
adjustment of vehicles will be very broad and allow to set up the car
as you wish. I only gave an example of the car, in which he attains its
maximum speed of opportunities!

Moreover the fashion to add the plug-in and settings upgrades, which will allow a fully featured used gearbox and clutch the G25 and g27 for example.

I did misunderstand you, sorry! I am glad you are doing it the way you are!

Jens Kraft wrote:

i think that u simply drive differently.

You can say it more directly...I suck

Mike Becnel wrote:

Vadim Sadoshenko wrote:

Mike Becnel wrote:

Vladim,

Be aware that the wheel a player is using will have a dramatic impact on how the car feels to each player. It is a game, not a real car. I just upgraded from an old FFB wheel to a G27. All my old setups are now completely undriveable.

My point is you should leave a large amount of room for people to adjust the cars even if that slightly lowers the realism. A realistic mod that only those with the top equipment can use will likely fail.

If
I understand correctly, you believe that in the settings of the car
will be fixed or not functional. It is just the opposite! Possibility of
adjustment of vehicles will be very broad and allow to set up the car
as you wish. I only gave an example of the car, in which he attains its
maximum speed of opportunities!

Moreover the fashion to add the plug-in and settings upgrades, which will allow a fully featured used gearbox and clutch the G25 and g27 for example.

I did misunderstand you, sorry! I am glad you are doing it the way you are!

Jens Kraft wrote:

i think that u simply drive differently.

You can say it more directly...I suck

not anymore











nah

Just less

The wheel just influences in the way it makes you "feel" the car, you don't drive better, just makes you have a better experience

Tiago Malafaya wrote:

... it makes you "feel" ..... just makes you have a better experience