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      07-09-2009, 12:47 AM   #114
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Drives: M3
Join Date: May 2009
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Originally Posted by Lemans_Blue_M View Post
Yes, but it's not that simple...

Yes the overall weights are close...but the effective weights are much different.

Let me explain...

The Dymag wheel has less effective weight in regards to performance, because it's Carbon Fiber outer barrel is located at the farthest point away from the center hub. That CF barrel is much lighter than that of the Volk CE28N. (i.e. the Dymag's outer barrel has less MASS)

Since a majority of the Dymags overall weight is contained in the Magnesium/Aluminum center spoke portion of the wheel, it's moment of inertia is much lower than that of the CE28N. (which is made of 6061-T6 Aluminum Alloy)

Since the Dry Carbon Fiber outer barrel on the Dymag wheel is much lighter in overall weight, it requires less energy to do the same amount of work. Which means it's easier to get the wheel to spin from a dead stop. It also improves the transitional performance during frequent accelerating and decelerating. (by reducing the load on the engine to spin up the wheel again after slowing down)

The Dymag's are a stone cold killer on the track...

Since the Dymag wheel has the lightest part of it's overall weight at the farthest point form the center bore, it's real world performance is superior to that of the CE28N.

FYI: The closer you get to the center bore, the less impact the weight will have on your overall performance. (physics 101)

But be advised...this 'advantage' in wheel technology comes at a staggering cost!
If the barrel of the Dymag wheel is so much lighter than the Volk, does it mean that the Magnesium center is heavier than the Volk aluminum center? I thought Magnesium is lighter than aluminum????