Does the Z have a rear toe-steer problem?

Guard Dad

I hear you. I'm hoping that someone has successfully addressed this issue so that we can learn from their experience.

The Megan toe links might be the ticket, maybe someone here has first hand experience with them.

I'm thinking that a good double-adjustable rear shock might be able to moderate the condition, any thoughts?

I'm hoping to avoid just throwing money at the problem.

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2010 Brilliant Silver, Base w/Sport Package, AT7, Katzkin leather, upgraded audio and lots of Dynamat and a bunch of small stuff.

ChrisSlicks

I have adjustable traction arms, I don't think they really help in this situation (you already have them they just aren't adjustable).

Adjustable shocks tuned for stock spring rates are probably the best option, soften the settings for daily driving and then turn them up for weekend canyon carving.

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Hotchkis ARB | Stillen CAI | Art Pipes | Berk CBE | Stillen AP Racing Brakes | AE Performance Oil Cooler | BC Racing ER Coilovers | Doran Control Arms

Guard Dad

In your case did you change the torque arm length or did you set it at the stock length? The implication of the Megan product description is that by adjusting the torque arm length the toe characteristics can be altered-your experience suggests otherwise. Comments?

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2010 Brilliant Silver, Base w/Sport Package, AT7, Katzkin leather, upgraded audio and lots of Dynamat and a bunch of small stuff.

ChrisSlicks

It is more track oriented than street (mine is from SPL). First they eliminate the rubber bushing to get rid of random flex, and second you can use it to alter the bump steer slightly. But like I said before I'm not sure that the suspension is compressing enough to actually induce bump steer in your case, but rather the back end is bouncing off the bumps as a result of the spring rate, or to be more accurate wheel rate as Red pointed out.

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Hotchkis ARB | Stillen CAI | Art Pipes | Berk CBE | Stillen AP Racing Brakes | AE Performance Oil Cooler | BC Racing ER Coilovers | Doran Control Arms

Guard Dad

So your thinking shocks are the first option?

Somewhat off topic (maybe) but I notice that those forum members that install coil overs always seem to comment that the ride has improved. This seems counter intuitive considering that most of these applications involve a 1.5" to 2" drop which, in my experience, usually makes the ride choppy and harsh. Now back on topic. Are our shocks known to be a problem? Is improved ride with coil overs the result of better shocks (I'm not interested in a sloppy ride) or is something else going on here and can any of this in any way be used address my concerns about bump steer?

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2010 Brilliant Silver, Base w/Sport Package, AT7, Katzkin leather, upgraded audio and lots of Dynamat and a bunch of small stuff.