[quote=“cosm3os” post=69792][quote=“Ranger” post=69790]The rule says that the air dam can’t go rearward beyond the “most forward part of the fender opening”. That’s the same language that has been with us for a couple years and is generally interpreted to mean that you can have an undertray that goes back to the forward edge of the wheelwells. But as soon as your undertray goes forward of your air dam, it becomes a splitter.
It’s a new rule and sometimes they take some extra massaging. No big deal.[/quote]
Under that interpretation, then, 3 and 4 would be legal as long as the front does not protrude past the bumper, and the rear doesnt go past the front of the wheelwell opening.
It is a big deal because we have about 6 cars being built right now in the MW and my guys would like alittle direction.[/quote]
Re. under that interpretation. No. You’re looking at my paragraph that discussed how a splitter can also be an undertray as if that was the only requirement in defining a splitter. The paragraph before discussed the common sense definition of a splitter being a horizontal piece under the air dam sticking out forward. That would make 3 and 4 illegal.
Re. it’s a big deal. Only if one buys into the idea that they are useful. Just because some drivers with good skills had some success with splitters doesn’t make splitters a good idea. Correlation is not causation. We race cars with net rear aero lift. It makes no sense to move the center of aero balance even farther forward by adding front downforce.