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Horrible handling

I also assume that going with the SPL arms and how they do away with the stock rubber bushings and going with solid mounts had to create more stiffness and

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Old 09-17-2012, 02:48 PM   #1 (permalink)
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I also assume that going with the SPL arms and how they do away with the stock rubber bushings and going with solid mounts had to create more stiffness and teamed up with all my other suspension parts I already have on top of all the weight I've removed back there has pushed it all passed it limits.
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Old 09-17-2012, 08:31 PM   #2 (permalink)
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Let's just be clear that toe IN tends to make the rear more stable. Toe OUT allows the wheel's slip angle to describe a turn and increases turn in grip (weight transfer will scrub some of this out). See DG's "autocross to win" link Jordo recently posted.
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Old 09-17-2012, 08:44 PM   #3 (permalink)
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I think there might be something else to consider at play also. Didn't think about it till later. I don't really wan't to go all into it. But may have something to do with fluid getting on my tires. More details tomorrow.
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Old 09-17-2012, 10:01 PM   #4 (permalink)
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It was definitely when on throttle or applying throttle.
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Old 09-17-2012, 10:03 PM   #5 (permalink)
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Quote:
Originally Posted by SPOHN View Post
It was definitely when on throttle or applying throttle.
I think the toe explanation is pretty reasonable then.

I definitely saw gain of > 1/32 when on throttle exit, and starting at .08 means you are probably seeing some crazy numbers.
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Old 09-20-2012, 09:56 PM   #6 (permalink)
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chris, you ever get a chance to tweak the toe and see how it felt?
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Old 09-21-2012, 05:59 AM   #7 (permalink)
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Not yet. Changing traction arms tomorrow. Alignment next Friday. Been crazy busy with life lately.
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Old 09-21-2012, 07:28 AM   #8 (permalink)
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Old 09-21-2012, 08:50 AM   #9 (permalink)
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Some much more experienced folks have chimed in already but the first thing I would have done in that instance was soften the rear sway bar.

My first event of the year was my first on coilovers and with the rear bar at full stiff the car was very unpredictable and liked to step out mid-corner. (It put me 4 off twice! in one session) Dropped it to the middle setting and the car was much more predictable.
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Old 09-21-2012, 09:43 AM   #10 (permalink)
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I'm going to make a handful of adjustments. With as much weight out of the rear and the roll cage added its definitely light and stiff back there.
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Old 09-21-2012, 10:42 AM   #11 (permalink)
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I wouldn't put the rear sway on full stiff. I'm looking at the Whitelines and even on the softest setting, they are something like 30% stiffer. With the sways super stiff, you leave a lot up to the traction of the outside tire.
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Old 09-21-2012, 08:38 PM   #12 (permalink)
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I would have rechecked the toe.
Toe in will not do what you were experiencing. There are sooooo many things it could be.
Just as an FYI... Our front bar is 1.75" and our rear bar rates just a bit stiffer than stock
Again.... Without knowing everything.... It could be anything.
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Old 09-21-2012, 09:22 PM   #13 (permalink)
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I feel now it's the sway bar. I'm changing traction arm tomorrow and will recheck alignment after. Do you guys feel I should keep the toe at .08 in?

I think I might had another issue. The same day I had a small fuel leak from the stock fuel side. A single screw was missing that holds the pump in and the O ring expanded allowing fuel to come out. So it ended up being a good bit coming out under track conditions. I wonder being the tank is on the outside of the car if the fuel was spilling onto the tire. Some fuel ended up in the passenger side floor board also. I had been testing the handling of the car on the street with no issues till that day.
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Old 09-21-2012, 09:43 PM   #14 (permalink)
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SPOHN, what you describe is exactly how I felt when running with my hotchkis sway bar set to full stiff at rear, I'll loosen it up to lowest if I were you.
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Old 09-21-2012, 10:32 PM   #15 (permalink)
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That's what I was running (full stiff). Worked super great for me. But I believe the roll cage stiffened up the rear a lot. Never got to fully test my car after for the day I went to the track it was raining. definitely going softer setting. I'll get it right. It's definitely not the toe.
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