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Originally Posted by MattR
AWD cars will inherently plow...my STI has a good balance, and when the dccd is turned back, it becomes almost tail happy. However, with this comes a lot of body roll. I would love to get rid of some of the roll, but that is what makes the car pivot IMO. If I tighten up the front only, with a sway bar, won't that make the car turn in quickly, then plow like hell? ( I can only change a front bar in A Stock). Is there anything I can do with only a front sway to improve handling? I'd say no, Help.
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It's hard to predict what will happen by changing the front bar only on a factory car; it's going to have different and sometimes conflicting effects. During cornering it's going to increase lateral load transfer at that pair of wheels, which will decrease the overall lateral force they'll produce, which would tend to produce understeer... but the increased roll resistance will probably mean less body roll in the corner which could give you a better dynamic camber angle for the outside tire - which means it would probably produce more lateral force. It will also affect the transients like turn-in response, since things will happen quicker with reduced body roll.
So, it's kind of hard to predict what would happen short of either running through some involved weight transfer & roll stiffness calculations for your car or finding some tribal knowledge from someone who's tried it with another STi and seen what happens. Sorry I can't help more than that.
