Front tire size versus reaction time

Adger Smith · 06-04-2010, 04:05 PM

I think you assumptions on your car are correct. "If" the car leaves the same... Back to ride height... the shorter roll out tire should make the reaction time quicker. It will also decrease the ET a little due to the reduced rollout... Think of Roll Out as a distance where you gather FREE speed before breaking the beams. How much free speed you get depends on many variables... Rear tire/suspension/converter hit/and just how hard your combination leaves all play roles in RT and ET's. That is why some say .005 and others say .015 with different tire sizes. Some other component of your suspension/weight bias or even tire slippage/hit changed when you put on the smaller tires.

06-04-2010, 04:05 PM	#9
Adger Smith VIP Member Join Date: Dec 2001 Location: Texarkana Ark/TX Posts: 2,446 Likes: 575 Liked 880 Times in 311 Posts	Re: Front tire size versus reaction time I think you assumptions on your car are correct. "If" the car leaves the same... Back to ride height... the shorter roll out tire should make the reaction time quicker. It will also decrease the ET a little due to the reduced rollout... Think of Roll Out as a distance where you gather FREE speed before breaking the beams. How much free speed you get depends on many variables... Rear tire/suspension/converter hit/and just how hard your combination leaves all play roles in RT and ET's. That is why some say .005 and others say .015 with different tire sizes. Some other component of your suspension/weight bias or even tire slippage/hit changed when you put on the smaller tires. __________________ Adger Smith (Former SS)