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Oversteer and sway bars...

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Old Aug 8, 2012 | 08:04 PM
  #1  
dubkeith's Avatar
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Oversteer and sway bars...

With the stock dunlops on, I could get the tail out via lift-off quite easy. Now with 235 T1Rs, I just cant. At an AutoX event a couple weeks ago, i was just BEATING on the car to get it out and it just wouldn't go.

Should i look to reduce under-steer, or induce over-steer more to get around the tights in a more enjoyable manner?

Anybody know if a rear sway-bar upgrade will help? Front and rear? Front only???
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Old Aug 9, 2012 | 01:01 AM
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If you're after lift-off oversteer, a firmer rear swaybar could well be the go.

Cheap to buy and easy to fit, so not a lot of risk - I'm all about "minimising risk of handling screwage" when mucking about with suspension, lol.


An adjustable one will improve your odds at finding something you like the feel of.

Rich
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Old Aug 9, 2012 | 06:43 AM
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One word... "Whiteline" I have their rear 24mm and wrote a how to in the "how to" section of the forum. I'd look it up and get a mech savy friend to help you out. Its not as easy as sounds its actually a PITA to put in but its worth it.
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Old Aug 10, 2012 | 05:42 PM
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I'm not sure I can agree with easy to fit for the rear sways....
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Old Aug 10, 2012 | 07:07 PM
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Another thing you can do to ~reduce~ understeer is to get some front camber bolts and have an alignment shop set you up with as much negative camber as they can get evenly up there (should be relatively close to -2.0*).

If you're lowered, also get some Whiteline rear camber bushings and have said shop set you up with as little negative camber as evenly possible in the rear (i.e. get the rear as close to 0 as possible).

Next to front/rear tire inflation, camber adjustments are probably the "easiest" way to tune under/over steer. This is, of course, assuming you're at a near neutral balance state.

Yet another thing that will help, if your stock height, is to lower the car. Lowering the car will reduce the suspension stroke and theoretically reduce front/rear weight transfer. Thereby reducing the amount of weight that transitions to the rear when you "get on it" early/mid-turn and in-turn making it easier to get the rear to step out.

Finally, one thing I've noticed is "getting on it" ~mid-turn~ almost never results in oversteer for me. To get power on over steer to occur, I need to accelerate through the entire turn (start to finish). Doing this, I'll need to "catch" the car near the end of a 90* turn. But then, this experience is on lowering springs and coilovers with the GST boost pill basemap on my RASB.
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Old Aug 10, 2012 | 09:00 PM
  #6  
richardjh's Avatar
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Originally Posted by ColdNapalm
I'm not sure I can agree with easy to fit for the rear sways....
Apologies then. I guess I was thinking, "easier than the FRONT to fit"!

Rich
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Old Aug 12, 2012 | 11:29 AM
  #7  
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Originally Posted by richardjh
Apologies then. I guess I was thinking, "easier than the FRONT to fit"!

Rich
That's for sure. The rear "can" be done in your garage (not that I recommend it, unless you have a whole Saturday), but the front.....don't waste your time trying.
The rear requires dropping the rear diff just enough to squeeze the bars between it and the subframe The front requires disconnecting the steering rack and removing the entire front subframe
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Old Aug 12, 2012 | 11:30 AM
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Originally Posted by nunyas
Another thing you can do to ~reduce~ understeer is to get some front camber bolts and have an alignment shop set you up with as much negative camber as they can get evenly up there (should be relatively close to -2.0*).

If you're lowered, also get some Whiteline rear camber bushings and have said shop set you up with as little negative camber as evenly possible in the rear (i.e. get the rear as close to 0 as possible).

Next to front/rear tire inflation, camber adjustments are probably the "easiest" way to tune under/over steer. This is, of course, assuming you're at a near neutral balance state.

Yet another thing that will help, if your stock height, is to lower the car. Lowering the car will reduce the suspension stroke and theoretically reduce front/rear weight transfer. Thereby reducing the amount of weight that transitions to the rear when you "get on it" early/mid-turn and in-turn making it easier to get the rear to step out.

Finally, one thing I've noticed is "getting on it" ~mid-turn~ almost never results in oversteer for me. To get power on over steer to occur, I need to accelerate through the entire turn (start to finish). Doing this, I'll need to "catch" the car near the end of a 90* turn. But then, this experience is on lowering springs and coilovers with the GST boost pill basemap on my RASB.
You gonna come out to the track and "try" all this out
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Old Aug 12, 2012 | 01:08 PM
  #9  
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From: Paris, TN
Originally Posted by sstevojr
You gonna come out to the track and "try" all this out
i'm gonna have to aren't i. looks like Buttonwillow is the last "open" event between now and Oct? hrmph...
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