HA rear, Helwig front bars - Chevy Impala SS Forum
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post #1 of 5 (permalink) Old 07-24-2004, 08:11 PM
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Put on the HA rear bar and the Helwig front bar. I already have st springs, hotchkis extended uppers and lowers, bilstien shocks, moog front end, etc...

Must say the car corners much better, but on the highway, if the road is rutted from heavy traffic, the car grabs the groove and pulls on the wheel pretty hard. Kinda suprised me. Anyone else experience that?
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post #2 of 5 (permalink) Old 07-26-2004, 08:46 AM
Doug Wood
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Welcome to driving a big car with fat tires. It's caused by the tire width.
post #3 of 5 (permalink) Old 07-26-2004, 12:11 PM
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I second the big tires, but I have also heard, while doing a little sway bar research, that the big rear bar will pull you around a bit. The HA bar is 1 1/2, correct? From what I've read, that large of a bar will pull on rough roads.
post #4 of 5 (permalink) Old 07-26-2004, 12:31 PM
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Running stock size tires on the street will usually result in less tracking problems. Here are a few suggestions.
Check air pressure I run 35psi in the stock BFG's and have found that higher pressures will make the car more sensitive to tracking.
Assuming that your suspension is in good shape check your alignment. Find a good alignment shop and check out your current settings. Then get it aligned to the Specs that have been posted on this board. Note, if you have a problem with lots of road crown your alignment guy can adjust for it. Next thing is to be there when they align it and make them get it exact.
It takes time to get everything spot on because when they tighten it up the specs change. Not much but they do change so you have to allow for it by trial and error. I use a race shop that deals with a lot of Vettes. The normal places set the toe and call it a day. If you usually drive by yourself then either sit in the drivers seat or have them load it with weights to match your weight.
post #5 of 5 (permalink) Old 07-27-2004, 10:08 PM
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I do not have stock size tires. I run 285/40 17 rear on a 17x10 wheel and 255/45 17 on a 17x8 wheel.

I could tell when I was on good road cause the car was smooth as silk and no pulling. It was the roads rutted by heavy semi-truck traffic where I experienced the pulling.
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