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      07-29-2010, 12:28 PM   #44
Victory Road
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Drives: BMW
Join Date: Jun 2009
Location: Chicago, IL

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Quote:
Originally Posted by Hyper psi-atic View Post
The weight difference in Advan flow-formed cast wheels and their forged wheels are very minimal. The strength is similar, however I believe the manufacturing process is much cheaper in flow-forming due to the added cost of the high-pressure forging machines.

Forged wheels should have added strength characterists, but not sure the level of difference.

F1 and Indy cars use Flow-Form Cast BBS wheels.
Here is a 19x10 et20 RS-D


Here is a 19x10 et22 RZ-DF


There is almost a 3 lbs weight difference which is actually pretty considerable.


Indy and F1 cars use forged Magnesium wheels...flow formed cast wheels are just not light/strong enough for the crazy lateral loads that F1 cars see.
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