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What are the effects of LCAs too low in the back?

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Old 10-21-2007, 02:01 PM
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Default What are the effects of LCAs too low in the back?

I have weld in relocation brackets and put them in the lowest holes. I've noticed it seems to fishtail easier, it's controllable but is this because the rear of the LCA's are too low?
Old 10-21-2007, 06:00 PM
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Just try the other hole, if it is better leave it there, also check the pinion angle.

With lowering or raising intersection points there is a sweet spot, going below or above it will cause you to loose optimum traction.

Try to borrow a set of good tires and test out which hole works better, it is hard to tell much from street tires.
Old 10-21-2007, 06:07 PM
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They will help your straight line traction better, but around turns I think Sam mentioned in the past that they cause the axle to go slightly toe out.
Old 10-22-2007, 09:03 AM
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In a nutshell the more upward angle on the lower control arms the more it will cause the car to rearsteer. So when you put the car in a corner it is fighting itself trying to make the turn.

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Old 10-22-2007, 09:10 AM
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Well, what's the advantages to greater upward angle?
Old 10-22-2007, 10:29 AM
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The more tail down you run the LCA's, the more rearward your instant center moves on hard acceleration, but the more squirrely the car gets. The more upward they are, the more stable the car is, which is why we run ours like this on handling cars. If you kind of want both, we simply use weld-in brackets that allow you any position from stock to ultra low and you can change that at the track.
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Old 10-22-2007, 05:00 PM
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I guess I should try the middle hole.
The stock location was terrible, it would wheel hop and fishtail to the point of almost wrecking, on the street.
Now in the lowest hole it just spins and sways side to side, feels controllable, but needs fine tuning.




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