997 2005-2012 911 C2, C2S, C4, C4S, GTS, Targa and Cabriolet Model Discussion.

What can I do to set my 997S to UNDERSTEER LESS?

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Old 10-10-2008, 03:18 PM
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What can I do to set my 997S to UNDERSTEER LESS?

CAR: 2006 997 S

Unfortunately, lawyers and Insurance companies rule and dictate our lives and now our cars.

I know Porsche set up their new cars with more positive camber to promote understeer.

I hate this, I buy rear wheel drive cars because i hate understeer.

I was told by many that a "race alignment" would help.

Front Left: -1.0º
Front Right: -1.4º
Rear: -2º
Slight Toe In


I got a slight race alignment (not too aggressive as its my daily driver still).

What other mods could i get to get as much understeer out of the car????

(Perhaps a front sway bar?)

Yes I want a drifting machine..... joking... well kind of.

And before you guys ask..... I'm a pretty good driver (not the BEST... but i can hold my own at the track)
 
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Old 10-10-2008, 05:21 PM
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H&R sway bars, the rear bar is adjustable to different degree's of over steer.
 
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Old 10-10-2008, 07:41 PM
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You would have to add a softer sway bar to reduce understeer - not a good idea.

Add a stiffer adjustable rear sway bar.

You could also add a few PSI to the front tires.
 
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Old 10-10-2008, 07:58 PM
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I agree with the above and I'd also try and max out your negative camber as well. Kind of sucks that the range of adjustment without going to GT3 control arms is so limited.
 
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Old 10-10-2008, 08:12 PM
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Originally Posted by MartinJF
You would have to add a softer sway bar to reduce understeer - not a good idea.

Add a stiffer adjustable rear sway bar.

You could also add a few PSI to the front tires.
Adding a set of F&R H&R sway bars will help, the rears are adjustable and it is a good idea to keep the set together. The stock F may be too light for a heavier Rear.
 
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Old 10-10-2008, 08:30 PM
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A adjustable rear sway bar set stiff would promote more oversteer for sure. But a simpler solution might be to add some downforce to your front, i.e: a splitter or some front aero. With downward force, the front wheels will have "more grip" while the rears will get slightly "less grip", therefore getting rid of some of the "push/understeer"you're having.
 
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Old 10-10-2008, 08:37 PM
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gt3 lower control arms and an aggressive alignment.
 
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Old 10-10-2008, 08:52 PM
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Let me also say that oversteer or understeer is usually SLOW!

Next time you have an understeer situation gently lift the throttle - practice on a dry skid pad you will be surprised how much you can steer the car with the throttle.

Another technique (harder IMHO) is to gently unwind the steering, let the fronts hook up and then add more input if needed, probably you will find that you dialed in to much steering input in the first place.
 
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Old 10-10-2008, 09:23 PM
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Add the H&R sway bars it helps a lot,make the car very neutral during turns.
 
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Old 10-10-2008, 09:25 PM
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Originally Posted by MartinJF
Let me also say that oversteer or understeer is usually SLOW!

Next time you have an understeer situation gently lift the throttle - practice on a dry skid pad you will be surprised how much you can steer the car with the throttle.

Another technique (harder IMHO) is to gently unwind the steering, let the fronts hook up and then add more input if needed, probably you will find that you dialed in to much steering input in the first place.
Yes. I agree both of these work and i use both techniques.

But I want to get more of that "old" porsche feel into my 997.

Thank s for the feedback.

I'm going to get a H&R Rear Sway Bar next week, and see how that goes.
 
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Old 10-12-2008, 11:57 AM
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I would go with a wider wheel and tire in front as well. If you could run a 8.5-9" width wheel and run a 255 tire that would do wonders for push. I know on my E46 M3 going from the puny 8" wide wheel, 225 tire up front to a 9" wide wheel and 255's pretty much cured most of my understeer. Not to mention I didn't have to run aggressive alignments.

JMHO..

Dave
 
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