Originally Posted by
t0p_sh0tta
Cool, I'm pretty sure "Wayne" is UN4RACING in the RB6 and 44.2 threads.
Wayne is me. UN4 is a friend of ours from the same local track.
Originally Posted by
Eaglesrx
If it's really "wayne" who's giving advice to Tebo, that's wild.
It's really not that wild. He's one of our local racers. He gives us far more advice than we give him--that's for sure. We've been doing a lot of club racing with him, as he noted.
Originally Posted by
stickboy007
After watching Tebo's post-worlds interview, it was abundantly clear to me that he is not a very smart person...
Tony is correct about roll center. Lowering the inner link and/or raising the outer link actually gives you **more** roll (lower roll center), as the center of gravity is travling along a larger arc during lateral weight transfer. This gives more mid-corner grip at the expense of steering responsiveness.
I'm sorry, but that just isn't correct. You're thinking of the forces wrong. A lot of people do.
When you go through a corner, the mass of the car pushes the outside arms against the hubs. This force is transmitted to the wheel/tire. The tire wants to stay in contact with the track thanks to the friction of the contact patch. This causes the tire/wheel want to lean over thanks to the hub hinge pin acting as a fulcrum. As the tire/wheel wants to lean over, it applies a pulling force along the upper camber link back to the chassis. The higher this link is on the chassis, the more mechanical advantage it has to pull the chassis over and produce more roll.
The problem is that people think that the tire is somehow resisting roll. It is not. If you disconnected the upper camber link, it would flop over in a corner. We've seen this happen in races plenty of times. What keeps the wheel from flopping over is the chassis resisting roll. The tire/wheel is asking for more please, to which we determine how much by tuning the mechanical advantage of that link, in which case, higher at the chassis or lower at the hub means more mechanical advantage and more roll.
I have a handy video that explains the concept and a demonstration with an actual car.
https://www.youtube.com/watch?v=tWdRQaz_Xq8
and
https://www.youtube.com/watch?v=44AlYI6lSX4
One is the demo, one is the explanation.
Wayne