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[–] 0 pt

How many degrees of toe out are you?from a tire wear, straight line stability and maximum cornering perspective, you may have negative side effects. Have you thought of instead piping the high pressure air from the bottom of the windshield area to beh8nd the tires to decrease the vortex?

Porsche made some wheels at one point that were sort of fan blade spokes cooling the brakes and possibly affecting this airflow.

[–] 1 pt (edited )

https://pic8.co/sh/6mOMC9.jpg

That's just laminar flow waiting to be used. I'm thinking, a guide vane to the tire to power up that vortex. Since it's a downwashing vortex, I can use a guide vane next to it and I'll get clean laminar downwash, and then I can direct that away from the car. What that will do is create a seal for the splitter, effectively separating the wheel wake from the splitter. Furthermore, since the vortex is down and outwashing it will also help entrain more air upstream since it will help lower the pressure at the splitter.

[–] 1 pt

I want the vortex, I already made prototypes that gained me more traction on the exit of slow corners, and if I nail it, I know it'll help. I'm running .3 degrees of toe out at the front and .3 in the rear. No abnormal tire wear or heating, but more rotation and more traction in low speed. The vanes are at ~25 degrees, but the prototypes I made didn't align well with the front wheels, nor the rear wheels under cornering. If I improve the design there's a lot of potential.

[–] 0 pt

Ok, I was picturing an excessive level of toe trying to achieve one goal but in the process losing the war. You will likely have slightly degraded handling and stability under hard braking, especially while cornering, depending on the flex of suspension components and bushings. Some of this can be recovered with reinforcements and harder high durometer bushings. Interesting concept, likely something that will end up on an f1 car one day if you prove it out. Standard skid pad g readings would be fine. Could be unpredictable though due to crosswind or another car nearby. This could cause loss of control if you were in the zone of using every bit of that newfound traction. Be neat to see pics if you have any posted, fair enough if you don’t want to though.

[–] 1 pt

I thought so, but no, handling is actually improved with just basic stuff. No problems braking, I have already done some chassis reinforcement, particularly to the upper wishbones, and the compliance bushings. The uppers have delrin offset bushings for extra camber.

All the studies I've seen show the contact patch is not affected by toe.

My car is in street mode right now, there's no track stuff I'm doing for another few months, as I'm just finishing up other commitments. I have a trunk with a huge wing, a custom diffuser made of aluminum and an underbody tray. Right now I'm using a modified plastic splitter. That's the only track thing that's on the car now, aside from the suspension and chassis stiffening. It's just an experiment. When I have time, I'll take it to the track bolt everything on and take some pictures.