Quote:
Originally Posted by B_Alley
 Since all your forces go through the center of the contact patch (not exactly, but we'll keep it simple for now) the farther that steering axis is from the contact patch, the more torque is going into the steering system and therefore the driver senses more 'feel'.
When designing suspensions and steering systems for our formula cars, I'd always try and keep the scrub radius as small as possible because this meant less torque going into your steering system, meaning you could make things super light! However, too light, and the driver can't feel what the tire is doing at the limit!
I would recommend going with an offset that would give you the largest track width, since that will reduce weight transfer, which increases tire efficiency, which helps rip your face off harder while cornering! Just try not to go too big on the scrub radius because then stuff can start to break! What options are you looking at? |
Glad I looked at this thread. I didnt have a clue on what the effects of a zero scrub was. Of all the books I have read they talked about striving for a zero scrub, but didnt talk about the effects. How the car feels.
On my car it just happens to be zero, I didnt plan it, its just the way it turned out with the wheel backspace and size I am using. But Im not liking what Im hearing. I dont want a "light" or "loose" feeling wheel. I like to be able to feel the stress and even the sliding through the wheel. I hate surprises.
So with that, and the fact that Im still in the building, or tuning stages what can I do if anything to bring back some feel if I find it is too light?
I understand more pos caster will give a heavy wheel. But thinking about it, that might be bad. It will be heavy for straight line correcting. But will the heaviness of that amplify the light scrub and make it even more difficult to feel tire slip? ERRR!!! Cars!!! I should stick with my honda civic
Oh, and I expect the car to oversteer a lil due to the setup. I might be building for destruction from the sounds of it??????
Solly for the hijack. Maybe the answers will help the cause. Thanks, JR