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    • The effect of unsprung weight on acceleration - 40-100, 60-100 testing with lighter wheels and tires

      We all know lighter wheels and tires have an impact on performance. Reducing weight that rotates has a geometric effect. That is why you want to reduce unsprung weight as much as possible as the performance benefit multiplies to a greater degree than just reducing overall car mass by the same amount.


      Previously, BoostAddict posted dyno results showing the effect of reduced weight on horsepower at the wheels.

      How does this transfer to real world acceleration though? Well, Track Day TV did an interesting test on a C7 Z06 measuring acceleration results with three sets of wheels and tires.

      It is no surprise the lightest set offered the best the numbers:




      Shaving a tenth or two tenths adds up over the length of a quarter mile. We're talking gaining a few car lengths just by running lighter wheels and tires.

      If you're serious about performance, take your wheel, tire, and rotor weights seriously too.


      This article was originally published in forum thread: The effect of unsprung weight on acceleration - 40-100, 60-100 testing with lighter wheels and tires started by Sticky View original post