TwinTurbo.NET: Nissan 300ZX forum - Already taken into account.
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Subject Already taken into account.
     
Posted by Antihero on October 17, 2012 at 10:37 AM
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In Reply To ok, so lets extend that theory. posted by ZiNnYc on October 17, 2012 at 10:26 AM
     
Message [ http://hpwizard.com/rotational-inertia.html ]

Sure 13.6 unsprung rolling weight is worse than 13.6 static weight. The issue is that even once you calculate the impact, its still negligible.

Being extremely generous and flying in the face of every number Ive seen, instead of a widely reported figure like 1.4-1.6 multiplyer. let use a 2.0 multiplyer. The difference is 13.6, double that is 27.2.

27.2 is still well within the realm of a backpack with some stuff in it. Insignificant.


Carrying the argument out means you might actually get to significant.

If you go akebono's + boat anchor 19's and manage to add 18.75 per corner, and use the same (generous) math, you end up adding 150 pounds effective weight. Lets also say you ditch the stock seats, get a lightweight battery, etc and get the Z down to 3500 pounds loaded.

Now your 18.75 per corner increase results in a 150 pound effective increase, and that means 150 pounds effective weight change. Thats certainly significant. Its a 04.28% increase.


Antihero



Putting AMS garbage, and $500 ebay wheels on a Z is like
dressing a Victorias Secret model in a Walmart dress and
Payless shoes. You're embarrassing yourself.

     
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