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Location:
perth
Registered:
June 2005
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drag racing
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Sat, 22 October 2005 02:56
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are mags lighter then stock steel rims (Pursuities)
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Registered:
July 2005
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Re: drag racing
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Sat, 22 October 2005 03:02
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depwnds what wheels.
thin spoked cast alloy probably yes but weak, ok for dragging
fat spokes, no or close to the same
forged yes
magnesium yes.
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Location:
Kita-Ku, Sapporo, Japan
Registered:
January 2003
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Re: drag racing
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Sat, 22 October 2005 03:27
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what matters most is diameter, and how mush metal there is in the actual rim of the ... rim.. all comes down to rotational inertia
thinkabout it.... the circumference of a 17" rim is larger than a 15" rim.. but they both have the same tyre diameter, there will not be much difference in the weight of the actual rubber.
if you were dedeicated, you would get a spare of each of the rims you were thinking of running, cut out the spokes, and then weight the remaining rim.. to account for different sizes or rim, multiply by radius or diameter (doesn't matter which really, since it's relative), and the rim with the lowest weight x diameter = rim with lowest inertia 
of course spokes also make a difference, btu the difference decreases as you get closer to the wheels centre..
hmm.. must be sunday morning... 
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Location:
Brisbane
Registered:
February 2003
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Re: drag racing
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Sat, 22 October 2005 03:29
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| oldcorollas wrote on Sat, 22 October 2005 13:27 |
hmm.. must be sunday morning...
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stewart, you're spending too much time in the lab.. is only saturday morning. 
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