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LSD to solve oversteer problem?

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Old 09-17-2008 | 11:53 PM
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Default LSD to solve oversteer problem?

265/285 pole position tires, stance coilovers, -1.4 camber front -1.6 rear

I have some problems with oversteer. The car allways seems to slide the back end first. Its never a slight push, or a neutral slide. Will installing a cusco 1.5, cusco 2, or a quaife unite stop my oversteer problem. Im hoping it will let me put down more power in the rear, making the car push. thanks
Old 09-18-2008 | 06:15 AM
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driving style has as much to do with oversteer as anything else - so does tire pressure

a 2 way diff is only going to promote more oversteer, so nix that from your list

before recommending you to buy parts, try altering the above first and take it one step at a time
Old 09-18-2008 | 08:21 AM
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how would drugs help you fix oversteer?
Old 09-18-2008 | 07:05 PM
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List of factors/corrections that affect oversteer vs. understeer :

http://www.timskelton.com/lightning/...orrections.htm

PS. I would double check some of them though most appear correct to me. For example, they talk about raising or lowering the front/rear end, but I don't know if they mean keeping other suspension geometry constant or if they imply that raising or lowering changes the geometry and that that is the actual correction (e.g. raising reduces negative camber).

Last edited by rcdash; 09-18-2008 at 07:11 PM.
Old 09-18-2008 | 07:11 PM
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This is a helpful explanation of the differences between a 1.5 and a 2.0. You are going to break free more often with a 2.0. The viscous LSD from Nissan is really the least likely to allow you to lose the back end.
http://en.wikipedia.org/wiki/Limited_slip_differential
Old 09-18-2008 | 10:51 PM
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Wouldn't the alignment come into play here? I mean, you mention coilovers, where did you have your car realigned after the installation of the coilovers? Also, do you have camber arms? You may want to adjust the alignment front and rear for a bit more rear end traction.

In my experience, you should really have a hard time getting it sideways with an offset tire size... leading me to believe your alignment is allowing more traction in the front that it can handle.

My $.02
Old 09-19-2008 | 01:38 AM
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The suspension setup you chose might have something to do with that, I don't know your spring rates because you didn't list what stance coilover setup specifically, but I read substantially higher rear spring versus front spring rates will promote oversteer, while higher spring rates in the front versus the rear will promote understeer.

Read up on spring rates, suspension, oversteer, understeer. Then analyze your suspension setup, it might clue you in to as why you're experiencing this.

Would stiffer front sway bars fix his oversteer issue? Any suspension experts out there?

Here, read this: http://www.teamscr.com/sway.htm

Last edited by mcarther101; 09-19-2008 at 01:47 AM.
Old 09-19-2008 | 05:43 AM
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as mentioned, all the parts in the world don't do you a lick of good if you're not driving the car properly....or if your parts don't match your driving style. It often pays to have someone more experienced behind the wheel to weed out the issues for you, when they are beyond what your knowledge will allow you to determine

He's got no mention of toe, no mention of tires, no mention of temperature - there is nowhere near enough info posted to even conjecture about a "cure all" - there are a ton of things that go into it
Old 09-19-2008 | 11:47 AM
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I think i might try lowering the rear so there is no rake. I have about 5 diffrent allignments. Pocono north, lime rock, autocross, street, and watkins glen. I also race karts, i know how to induce more or less oversteer. I constantly try and ballence my driving. I just want to know if a LSD will help.
Old 09-19-2008 | 11:50 AM
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assume bridgestone pole positions 265/35/18 285/30/18, stance coilovers zero toe front, Stock toe in, in the rear, -1.3 front -1.5 rear. thats what im on now I set it up two weeks ago. also assume I know how to drive, (not saying im the fastest or that I cant get much better) just that I know how a car behaves given the right or wrong imputs.
Old 09-19-2008 | 11:56 AM
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under what conditions is it oversteering?
Old 09-19-2008 | 01:09 PM
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aside from obvious ones like with a throtal lift. Its just the fact that it WON'T AT ALL understeer. It will only do it on tight autocross turns. Aside from that it just makes the car feel spooky. I mean dont get me wrong the grass is greener on the otherside. Its great to have constant steering feel, but it limits me due to financial fears. Unlike karts that I can just do what I want with them. I just want the car to get more planted under light throtal through turns and be more nuetral.
Old 09-19-2008 | 01:50 PM
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I just want to know if a LSD will help.
Quick answer would be no. Of course, unless you are running with a stock one now, and there is something is completely messed up. I really don't know.
Old 09-20-2008 | 07:43 PM
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Default sway bar!

I installed coil overs on my 06 to help it corner better: I lowered the front 3/4 of an inch and the rear 1.5" note: car still cornered terrible on the track: Installed 265/35r18 on front and 275/40r18 on rear with 18x9.5" wide wheels with 20 mm off set! I thought I was set! cornered better but not what I hoped for. I Install H@R sway bars front and rear! Car corners like its on rails now! what a difference! Sway bars are the way to go!
Old 09-21-2008 | 01:59 PM
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I have hotchkis
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