Roll Center design theory

[dennis68]

Hey Denny,

Man! Ain't that the truth!

Would you care to expand on a couple of your points?

Specifically

1. I'm not looking for ideal, not that it's not a good idea, obviously. This is one of my compromises. What area do you think the stock spindle falls shortest?

BIggest gripe is spindle pin height. By the time you drop the spring height down to a reasonable level the whole front geomtery looks like hell. Mine had a FRCH of like -12.00 or something with stock spindles and a pretty big spring drop

2. This is clearly no where near the case in the dirt world. B-spindle geometry is considered far superior to any other stock spindle (stock spindle classes being the assumption here) What makes it worse than stock for a road racing app, in your opinion?

They aren't even great for dirt track, you guys just don't notice it in that controlled 4 wheel slide you call racing (looks like drifting on dirt, albeit fun as hell looking). Bumpsteer is friken crazy once you add some spring drop, FRCH is still down in hell somewhere, steering ratio drops to like 25:1 as well as losing 5-8 feet from your turning circle (try steering out of oversteer conditions with a real crappy steering ratio) and they are way heavy.

3. This may raise the skill level but I see it as something that has to be done. What sort of compromises have you found by leaving it stock?

with or without the tall ball joints? With tall ball joints they work pretty well. Without tall ball joints, see #1

4. No explanation needed :-)

we agree

5. I wish I was in a position to get mine on a track soon but it'll be awhile. I'm sure it will be faster than yours though ;-)

dream on dirt boy.

I know you're pretty passionate about your setup so don't think that I'm hacking on you. I'm just trying to figure some stuff out given different compromises. You've picked a different set of parameters than I have so I'm genuinely interested.


Wally

Can't hack on me....I'm Superman.