[Miata] Lateral Roll

[Jamie Sculerati]

Stock springs?  Any car rolls due to weight transfer -- the springs control 
that movement, and the shocks damp the resulting motion of the springs.  If 
you have stiff springs on stock shocks, it can end up being underdamped, so 
it takes a couple of cycles to damp out.  Another alternative is a broken 
shock or shock mount on one corner, which means reduced or no damping on 
that corner...same result.  You'd think they'd find something like that in 
an inspection, but when I lived in states with vehicle inspections, I didn't 
find them to be all that thorough.

Jamie
'01 Miata, '92 Prelude, '63 Suburban
Speed Demon Racing

----- Original Message ----- 
From: "Naked Pagan" <nkdpagan at hotmail.com>
To: <miata at realbig.com>
Sent: Monday, May 05, 2008 9:12 PM
Subject: [Miata] Lateral Roll


>
> "Lateral roll" comes from my aviation background, its more of a rock from 
> side to side.I own a 93 with 125K. It has a brand new set of rear tires, a 
> worn set in the front, shocks are a year old and it just passed the state 
> safety inspection.I've developed a sway from left to right when I move the 
> wheel to make a lane change. It lasts only a cycle or two, and can be 
> diminished with corrective steering. Its noticeable in city driving, but 
> more pronounced at 'express way' speeds, and can be a control issue. Kind 
> of hairy when trying to pass between a semi and a jersey barrier.What is 
> the issue and how to resolve it? Gods are fragile things; they may be 
> killed by a whiff of science or a dose of common sense. [Chapman Cohen]
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