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.

Skeen - Zoodiac
Arcin - P1z
Panter P1z
Flassig - Zoodiac

Skeen - Zoodiac
Arvin - P1z
Panter P1z
Flassig - Zoodiac
Jeremy P1z

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.

And to answer the angle question.. angling it does something. You expose more of the splitter to the air and causes huge drag, while the air going behind it causes major turbulence and drag.

Any feedback on this Bittydesign body?


https://cimg8.ibsrv.net/gimg/www.rct...bc455595e.jpeg

Had a few issues this weekend with Tire Prep. Anyone have a procedure they use for USGT and VTA they'd be willing to offer up? Or point me in the right direction? I did a search and didn't find a outline of a procedure.



Oh forgot to add Black Carpet (More like Black Ice).

What procedure is used by the fast guys at your local track?

The track owner took my USGT tires and sanded the crap out of them.

Most other folks just mentioned that I use "Blue Liquid Wrench in a Bag".

No particular Procedure forsay.

Sounds like things might be a bit different at your track. All of the black carpet tracks I've visited only alow SXT traction compound. That 'blue liquid wrench in a bag' sounds like off road tire voodoo.

I am guessing all the random tire additives are fighting causing it to be slick ... or it's not CRC black. Our CRC Black with an SXT groove will pull the dirt off your shoes.

On CRC Black:
-USGT spec tires shouldn't need anything other than SXT applied before the run.
-VTA really need to be warn in with lots of SXT or heat cycle them a few times with tire heaters applying SXT (and let dry) in-between cycles.

It’s for sure black carpet. Bout took the soles of my shoes after turn marshaling.


And only STX traction compound is allowed.

Not sure if it's allowed but there are 3+ levels of SXT. The MAX can help the VTA tires before they are broken in, but really shouldn't be necessary on the USGT tires. By any chance did you glue the sidewalls? I accidentally put a set of glued side walls in the rear and that was a drifting nightmare.

I usually remove my tires and put on a sander before the first run of the day. I don't sand them, but use either sxt on a rag, or lighter fluid (naptha) to clean them good. Once they are clean, they only require saucing and let dry or wipe dry just before hitting the track. I generally sauce about 5-10 mins before the next run. We use burnout tables with black carpet to warm up tires a bit before hitting the track and to sling off any sauce that didn't get wiped off at the pit table. If I hit the burnout table I usually only give it about a 1-2 second wide open throttle blip. After a warm up lap or two I have no traction issues. Biggest problem I've had with the usgt tires is they will cake up with crap after a run. Keeping them clean after each run is very important with these tires. Wipe them down good with a rag wet down with sauce or lighter fluid to get the caked up crap off. Hope that helps and good luck out there!