Originally Posted by
Xrayray
Splitter works by being close to the ground and causing low pressure under it. Check out Time Attack cars, none are angled. It splits the air, making the air flow faster under it due to the low height.
Technically it should have an air dam above it, but with rc bodies, the air can get inside the body if you just set it on the splitter.
Arrma infraction has one that works.
Yep. The front bumper is like a snow plow. All of the snow buildup, air in this case, becomes a high pressure zone that pushes down on the front splitter. A blunt car nose, like the caddy, will produce more downforce than a swoopy vette nose. High pressure due to the blunt bumper above the splitter. Low pressure below.
Same reason that your AC intake is at the base of your windshield. And why muscle cars and Nascar have engine air intakes in that spot. High pressures at the base of the windshield creating a bit of ''ram air'' effect.
Measure the surface area of the splitter. Multiply each inch^2 by say...... 8oz's of pressure. You can have hundreds of pounds of downforce there easy. 4-8oz is about how hard you can blow on your hand. Hold your hand out of a car window, you can feel that just 60mph is much more force than that.