Would love to see an old school RCHR layout. Technical and lots and lots of bumps and jumps. Who needs traction when your in the air.

It made me feel good that the current reigning world champion is/was also confused about roll centers and how to adjust them.

http://jtprc.com/2013/12/29/setup-tip-roll-center/

In a nutshell:

Lowering the inner link = less roll
Raising the inner link = more roll
Lowering the outer link = more roll
Raising the outer link = less roll
A lower “roll center” rolls more
A higher “roll center” rolls less

Will anybody be at the track today, if so what time? Was looking to come down and pratice if not to late. Thanks!

On Saturday Will said the track/shop will be closed until Thursday.

Thanks, I guess I will have to find something else to do....

Cool, I'm pretty sure "Wayne" is UN4RACING in the RB6 and 44.2 threads.

I'm going to say that more roll/less roll is misleading. You're actually talking about roll center and raising or lowering it. When you lower roll center it allows more weight to transfer and opposite for raising it. Effects vary depending on front rear and of course angle and length of the camber link.

I still like the hudy book for this stuff

http://www.teamxray.com/teamxray/sho...p?file_id=4461

I'm going to say that more roll/less roll is misleading. You're actually talking about roll center and raising or lowering it. When you lower roll center it allows more weight to transfer and opposite for raising it. Effects vary depending on front rear and of course angle and length of the camber link.

I still like the hudy book for this stuff

http://www.teamxray.com/teamxray/sho...p?file_id=4461

will, just in case you didn't check, I sent you a pm. thanks,

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 took a look at the Hudy setup guide that John printed out. Overall it's not bad, but I found a few errors or at least points of contention, as well as some things being left out (e.g., spindle carrier position). I prefer to rely on my understanding of physics and geometry.

And away we go on the roll center discussion!!!

Look at the Hudy setup book that was linked above, it's a pretty good.

If it's really "wayne" who's giving advice to Tebo, that's wild. "Wayne" or un4racing is the guy on the b44.2 thread that created all of those build and tuning videos. He knows his stuff. If any of you are building an b44.2, definitely watch some of his videos. he tends to talk too much and is long-winded, but definitely some good video.

this hudy tuning guide is what I use. I have the pdf file saved to my iphone. It's real easy to quickly use as a reference to check on roll center's, antisquat, etc.

Another resource I use is the following: http://jq-products.com/the-news/43-t.../160-the-guide

Not as user-friendly as the hudy guide, but it provides some more detail for certain sections (i.e. check out the roll center/camber link section).

I also have the ae tuning guide app. Most of it is real basic, and only some of it's useful, but it gives some basic info.

Hey reinaldo, I thought lowering the inner ball stud raises your roll center (assuming outer link position is constant)? http://www.teamassociated.com/news/l..._V2_iPhone_App

Phu, the roll center is the virtual "center" around which the chassis rolls. In other words, it is a virtual axis of rotation. If you take the camber links and extend a virtual line from them from both the left and right sides, the point of intersection plays a role in determining this axis of rotation. As the inner ball stud drops, this intersection point drops, and therefore the roll center drops.

You mean drop it like its hot?