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asymmetrical setup?

Old 02-18-10, 12:14 PM
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asymmetrical setup?

the tracks that we're on are biased, there are more rights (or lefts)

we have run a slightly asymmetrical setup for years, as we tune to tire temp

but we're thinking there is actually more to be had, as one of our tracks is like ALL rights, with a couple of small lefts.

anyone?
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Old 02-18-10, 03:28 PM
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I've seen some guys run 0.25-0.5deg difference in camber, but not much else for tracks with a lot more turns one way than the other...
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Old 02-18-10, 04:21 PM
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My findings suggest yes, and I have been wondering the same thing.

I already run slightly different tire pressures left to right on certain tracks and it seems to help keep temps more consistant. I have thought about running .25 or .3 degree more negative camber on the "dominant" tire to even tire shoulder wear as well.

In the rear I am geting nearly even wear, and temps even out with a 1-2 PSI pressure change from left to right.
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Old 02-20-10, 12:47 PM
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Originally Posted by LargeOrangeFont View Post
My findings suggest yes, and I have been wondering the same thing.

I already run slightly different tire pressures left to right on certain tracks and it seems to help keep temps more consistant. I have thought about running .25 or .3 degree more negative camber on the "dominant" tire to even tire shoulder wear as well.

In the rear I am geting nearly even wear, and temps even out with a 1-2 PSI pressure change from left to right.
yeah good point, our tire pressures are different too, we set by temp...
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Old 02-20-10, 12:51 PM
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Originally Posted by gkmccready View Post
I've seen some guys run 0.25-0.5deg difference in camber, but not much else for tracks with a lot more turns one way than the other...
yep, we've done that. at thunderhill, for example, we run less camber on the left, as most of the turns are rights, most of the setup plants the outside tire, but it helped to have the inside tire with less camber too.

also at thunderhill, turn 5, the bypass, it helps to raise the car a little so it can land properly, that made a bigger difference than we thought, instead of waiting for it to land bottom out and then be able to drive, you just drive
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Old 02-20-10, 01:24 PM
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As long as your braking isn't upset too much its fine running different camber etc. I like to keep things close on the numbers but play with tire compounds.
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Old 02-20-10, 02:16 PM
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Anyone pre-load the front swaybar?
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Old 02-28-10, 03:34 PM
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I remember one of the F1 commentators remarking how F1 setup changed when Jac Villeneuve left CART for the series. Prior to this it was F1 custom to square a car up and not consider asymmetrical setups. Apparently in CART, with the oval influence, asymmetrical setups were very common on the road courses.

The last year I raced my own car and we dominated the year at Mid-Ohio, a good deal of the speed we found that year was the asymmetrical setup. At Mid-Ohio you need to get through the Carousel quickly and you need to carry a lot of exit speed out of the keyhole. Both are right hand corners. The gains we made in the right hand corners obviously outweighed any losses in the lefts. In fact, we were usually loose through the left hand T1, so tightening the car up there was an added plus.

We went beyond camber changes. We played with weight jacking to tweak the chassis, allowing it to naturally turn one direction better than the other. A little weight jacking goes a long way. A half turn on the coil over can produce results.
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