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post #1 of 4 (permalink) Old 03-28-2016, 09:27 PM Thread Starter
JAB
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Sway bars

Why do the 4.6L cars have smaller rear sway bars than the 3.8L's? Wouldn't the added weight of the V8 cause more understeer requiring a bigger sway bar in the rear to balance out the steering? I am curious to know. Advantages or disadvantages?
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post #2 of 4 (permalink) Old 03-28-2016, 10:08 PM
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3.8s use tubular bars, 4.6s(and 3.8 SCs) are solid, solid = more stiff than a tubular of larger diameter. Plus V8s use different spring rates, and those have a higher impact on handling overall.

-Matt
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post #3 of 4 (permalink) Old 03-28-2016, 10:54 PM Thread Starter
JAB
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Ah makes total sense. I didn't think of that. Thanks for the reply.
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post #4 of 4 (permalink) Old 03-29-2016, 10:44 AM
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Interesting sway bar calculator.
Even if you don't get the overall specs right for a tbird specific bar, you can see the impact of solid vs tubular in terms of stiffness.

swaybar.xls

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