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> using larger (Dia.) wheels/tires, rotating mass effects
Tom
post Apr 28 2010, 09:30 AM
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Have we ever discussed the effects of changing the wheel/tire sizes and the effects on acceleration, both in starting and stopping? I ended up using 195/55/15's on mine and I noticed that the speedo was off about 10% and I expected that and because the overall diameter was smaller, i thought acceleration would be affected slightly also. What I didn't take into account was the rotating mass effect. So, I guess my starting and stopping both have been slightly improved, maybe handling is improved slightly also.

Link to some info: http://www.the-welters.com/racing/rotational.html

I some times wonder how those pickups with 22" wheels brake in an emergency!
Tom
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