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    1. #1
      Join Date
      Apr 2001
      Location
      The City of Fountains
      Posts
      16,129
      Country Flag: United States
      I'll throw another data point out there. I just swapped tires on my GTO. I was running the Falken RT 615s in 255/40-18 in the front and 295/40-18 in the rear. I swapped to the new BFG Rivals, with 275/35-18 in the front and 295/35-18 in the rear. We set the new tire pressure at 38 in the front and 36 in the rear. The front wheel were widened from 8" to 9.5".



      The Falkens were 28lb front and 33lbs in the rear.

      The Rivals are 27lb front and 29lbs in the rear.

      With the wider front wheels, the weight might be a wash. However, in the rear I lost 8lb of unsprung weight. That seems like a lot.

      The ride quality with the new tires are is better than with the old tires.

      Andrew
      Last edited by andrewb70; 08-28-2013 at 06:09 AM.
      1970 GTO Version 3.0
      1967 Cougar build
      GM High-Tech Performance feature
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      "You were the gun, your voice was the trigger, your bravery was the barrel, your eyes were the bullets." ~ Her





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