I am building a new 2012 Jeep Wrangler and discovered some interesting points that should be considered when changing your shoes.

In the above Jeep, for every additional 10# in wheel/tire weight it would be equal placing 100# in the cabin, 40# = 400#, etc.

Of course, I have no idea how a 997 would be affected but it is safe to assume the additional load is more than you think.

 

Here's an interesting read regarding unsprung weight.

https://www.6speedonline.com/forums/...ng-weight.html

 

Great reference.....Thanks.