rFactor 2

rFactor 2

78 ratings
StockCar 2015
File Size
228.932 MB
May 1, 2017 @ 12:49pm
Dec 21, 2017 @ 11:30am
2 Change Notes ( view )

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StockCar 2015

Stock cars, undoubtedly the most popular form of motor racing in the United States, is often seen as primitive by Europeans and much of the rest of the world. It is our hope to change this perception by giving all our customers access to what is, our neck of the woods. Stock cars are dictated by rather restrictive rules. However, the technology and development programs are as sophisticated as just about any other form of motorsport. Extensive wind tunnel testing, CFD programs, 7-post rigs are standard in developing the most competitive cars.

Stock cars are large and relatively heavy steel-chassis racing cars, a combination of factors that somewhat prohibits maneuverability and handling. Given they tend to run almost exclusively on ovals, which generally feature large radius corners, this has minimal impact on performance. Despite all this, errors at these very high loads can be brutal on tires, and small mistakes can create big consequences. Stock cars have neutral handling, but do rely heavily on setup to be competitive. If you don’t like tinkering with setups, you likely won’t be competitive outside a fixed-setup environment.

Unlike circuit racing, the majority of downforce is not created aerodynamically, but via banking in the corners. It might surprise some to know these cars produce up to 2600lbs ~(1200kg) of aerodynamic downforce, which is very nearly on par with what GT3 cars would produce were they be able to reach similar top speeds, but stock cars do it without large wings or diffusers. The majority of downforce is created through ground effects, via the front splitter and side skirts, and of course some help from the rear spoiler.

The nature of ground effects means that you must aim to keep the splitter very close to the ground at all times. As the underside is not smooth, drag is also lowered by blocking airflow under the car. This approach requires running on bump-stops, or very stiff springs to prevent the car raising too much down the straights. Unique damping properties are also used in stock cars for the same purpose. The effect of this is to make the cars somewhat sensitive and edgy, but in finding the right setup and driving style, the car will just ‘work’.
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juanarg70 May 16 @ 2:00pm 
Great cars!!. When using the car with road configuration and everything symmetrical in garage, tha car mantains the tendency to turn left. Is this ok.. Is there a fix?
galleticaymiguapi Dec 13, 2017 @ 4:07am 
mod muy bueno
Poopenshnapples Sep 27, 2017 @ 7:56am 
And the tires are absolutely useless!
If the tires were actually this bad the company who makes them would be bankrupt.
Poopenshnapples Sep 14, 2017 @ 3:37pm 
Cars are way too responsive and twitchy

Otherwise, quite good
Johannes 世破涅主 Sep 14, 2017 @ 12:22am 
Did ya'll hear about the nascar driver that took a RIGHT TURN?
djfil007 Jul 31, 2017 @ 12:17pm 
More ISI oval tracks need to be updated to DX11 too.
JulianJEGG Jul 6, 2017 @ 8:18am 
alguien que hable español ???
Tnadz May 5, 2017 @ 1:53pm 
This has been a decent mod since released by ISI. I know they plan to keep their sites on it to try and win back some of the oval community. I can't wait for that day because I don't want to pay for iRacing and I can't find anything better than NR2K3. This mod is the shinning beacon in the night. There are already good skins out there to match the NASCAR guys. The AI don't quite have that pack racing magic in this and sort of spread out like road course racing does. It makes sense and that could be track related too. But that's one of the big things we need. That and I need freaking VR to really appreciate the driving in these things. Best of luck on development here. Many of us are watching in much anticipation.
Zsizsi May 5, 2017 @ 7:14am 
don't to dare for 4,480 subs today!.:steammocking:
Ranger13 May 3, 2017 @ 2:31pm 
Went to the website and got the leagacy version, and now it updates correctly.