 Caster settings, Explain please |
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| r_towle |
 Aug 12 2007, 01:25 PM
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#1
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Custom Member  Group: Members Posts: 24,705 Joined: 9-January 03 From: Taxachusetts Member No.: 124 Region Association: North East States 
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How does the caster setting affect an AutoX car.
What is the best, and why. Rich |
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| jhadler |
Aug 13 2007, 01:00 PM
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Long term tinkerer... Group: Members Posts: 1,879 Joined: 7-April 03 From: Lyons, CO Member No.: 529 |
I'm pretty firmly in the camp of caster is good for autox. And more is better. Granted, there's such a thing as too much of a good thing. But the dynamic camber gain more than makes up for the reduced turn-in if that is the ONLY thing you're doing.
But it's all a system. Caster alone is not the end-all-be-all. You need to dial the rest of the car in around it. And a truly hot setup for autox, is not going to be a hot setup for track or street. Having a lot of caster allows you to run less static negative camber, giving you a better contact patch for braking. Turn-in won't be as light, but the car will have more front end grip when you need it (mid turn). Turn-in then can be played with by toe, or spring rate, or just compensating with the steering nut. I think I'd rather have a little more effort for turn-in if it meant I could carry an extra .15 G around a turn. -Josh2 |
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| woobn8r |
Aug 13 2007, 08:54 PM
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#3
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Senior Member Group: Members Posts: 607 Joined: 7-January 07 From: Newmarket, Ontario, Canada Member No.: 7,435 Region Association: None |
QUOTE(jhadler @ Aug 13 2007, 01:00 PM)  I'm pretty firmly in the camp of caster is good for autox. And more is better. Granted, there's such a thing as too much of a good thing. But the dynamic camber gain more than makes up for the reduced turn-in if that is the ONLY thing you're doing. But it's all a system. Caster alone is not the end-all-be-all. You need to dial the rest of the car in around it. And a truly hot setup for autox, is not going to be a hot setup for track or street. Having a lot of caster allows you to run less static negative camber, giving you a better contact patch for braking. Turn-in won't be as light, but the car will have more front end grip when you need it (mid turn). Turn-in then can be played with by toe, or spring rate, or just compensating with the steering nut. I think I'd rather have a little more effort for turn-in if it meant I could carry an extra .15 G around a turn. -Josh2 You had me right up to the point where you say you set up with less negative camber and have more grip in a corner....not in my experience...but I also don't run max caster on my race cars...I do use a pyrometer to maximize all test set ups though....I'm also not sure your more caster/less neg camber theory is correct...but if it works for you...who am I to argue. |
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Posts in this topic
r_towle Caster settings Aug 12 2007, 01:25 PM
J P Stein
How does the caster setting affect an AutoX car.
... Aug 12 2007, 02:02 PM r_towle so, more caster would mean that the top of the str... Aug 12 2007, 02:04 PM
J P Stein
so, more caster would mean that the top of the st... Aug 12 2007, 02:07 PM Dr Evil Would it be recommended to do the 6 deg to a stree... Aug 12 2007, 03:05 PM brp914
6 +/- 0.5 degrees is the stock setting. Aug 12 2007, 03:43 PM Dr Evil Ah, simple enough :rolleyes: I guess I would have ... Aug 12 2007, 08:34 PM john rogers A rule of thumb we use is for auto-x, DE and other... Aug 12 2007, 09:07 PM Joe Ricard I am of the same thought as John on this one.
I u... Aug 13 2007, 12:48 PM jhadler
You had me right up to the point where you say yo... Aug 13 2007, 11:33 PM alpha434 F=uW
Whatever makes the tires stick best. Aug 13 2007, 10:31 PM alpha434 And if you've ever driven a Hupmobile, you kno... Aug 14 2007, 01:01 AM Joe Ricard Like Josh said it all about the whole set up.
Sin... Aug 14 2007, 05:58 AM jhadler
If I remember right John Rogers runs slicks too.
... Aug 14 2007, 12:40 PM degreeoff :hijacked: OK I am almost to a point where I will ... Aug 14 2007, 01:11 PM |
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