- 1,689
- NY
- SavageEvil
Nice thread, but since when do cars not produce downforce? Every car produces downforce because it's a fact of physics, when you reach certain speeds the air running around the car enacts on it, depending on how that car is shaped affects how much downforce is going to be generated and that is without a spoiler or any kind added to the car.
The reason race car have large spoilers on the rear and air dams up front along with splitters is to channel the air in a controlled fashion which helps with stability as well as keeping the car planted on the road to a limit.
Those RM cars which you think has magical downforce actually has things which you cannot see, aside from the underbody channels which you can see the rear exit diffuser, there are also vents behind the wheels which also channels air that was channeled through by the front splitter also many race cars have these at the rear as well. Remember the S7 was purported to be able to be flipped over at 175mph and still stay glued to the road, now if you looked at all the gill slits on the outer shell of that car and ask if that was truly possible. Not to mention it also had a dual suspension, a secondary set that activated at high speeds when the downforce becomes greater.
Car basic shape will allow for a certain amount of down force to be generated, some road cars actually use down force to lift the car slightly at highway speeds for better fuel economy( some of the old school SUV had positive lift spoilers on their roof).
Any sort of device applied to the basic shape of a car will affect down force and stability, drag coefficient is more important to high performance sports cars and some economy cars. Race cars as you can see don't seem to care about aero coefficients as much considering large spoilers create lots of drag just being there, but they do have rather low aero coefficients but focus is on maintaining handling at high speeds than miniscule fuel economy gains. Lots of spoiler less race cars can manipulate their downforce using front splitters and underbody air channels as well as braking duct vents to increase or decrease down force. GT5's RM are basically Works cars, rebuilt to have near perfect balance in overbody and underbody air flow thus not all cars would actually need to utilize a large rear spoiler.
I wished PD had actually used lbs/in instead of their odd system and actually shown the multiple points in which to increase down force on pure bred race cars, those LMP cars have channels for a reason; all for air flow manipulation.
No magic down force seen yet, although some cars do exhibit better grip on SH tires than other cars. Although I could be wrong about a great many things. I have to go read on some more information about Works cars.
The reason race car have large spoilers on the rear and air dams up front along with splitters is to channel the air in a controlled fashion which helps with stability as well as keeping the car planted on the road to a limit.
Those RM cars which you think has magical downforce actually has things which you cannot see, aside from the underbody channels which you can see the rear exit diffuser, there are also vents behind the wheels which also channels air that was channeled through by the front splitter also many race cars have these at the rear as well. Remember the S7 was purported to be able to be flipped over at 175mph and still stay glued to the road, now if you looked at all the gill slits on the outer shell of that car and ask if that was truly possible. Not to mention it also had a dual suspension, a secondary set that activated at high speeds when the downforce becomes greater.
Car basic shape will allow for a certain amount of down force to be generated, some road cars actually use down force to lift the car slightly at highway speeds for better fuel economy( some of the old school SUV had positive lift spoilers on their roof).
Any sort of device applied to the basic shape of a car will affect down force and stability, drag coefficient is more important to high performance sports cars and some economy cars. Race cars as you can see don't seem to care about aero coefficients as much considering large spoilers create lots of drag just being there, but they do have rather low aero coefficients but focus is on maintaining handling at high speeds than miniscule fuel economy gains. Lots of spoiler less race cars can manipulate their downforce using front splitters and underbody air channels as well as braking duct vents to increase or decrease down force. GT5's RM are basically Works cars, rebuilt to have near perfect balance in overbody and underbody air flow thus not all cars would actually need to utilize a large rear spoiler.
I wished PD had actually used lbs/in instead of their odd system and actually shown the multiple points in which to increase down force on pure bred race cars, those LMP cars have channels for a reason; all for air flow manipulation.
No magic down force seen yet, although some cars do exhibit better grip on SH tires than other cars. Although I could be wrong about a great many things. I have to go read on some more information about Works cars.
Oh, and it's my name for them! 
