Quote:
Originally Posted by SorryTires
I hadnt considered the aero drag or rolling resistance. I suppose if you add up all these effects you might get something measurable.
Anyone have datalogs from the track with different tires they would be willing to share? It would be very interesting to see how much the lateral and longitudinal g's change
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I didn't have my AIM data logger when I took these videos; however, the first two were within 2 months of each other, the first is with 245/40-17 RE71r's (1:26.6) the second is with 225/45-17 RE71r's (1:27.6) and the third is my personal best at that track on 255/40-17 RE71r's (1:24.7).
The g's look pretty similar. All three videos are with different brake pads, but other than pads and tires there weren't any changes to the car.
245's
[ame]https://www.youtube.com/watch?v=NFUUkOPVxKU&t=729s[/ame]
fastest lap starts at 5:53
225's
[ame]https://www.youtube.com/watch?v=2fDUhX4R9fM&t=864s[/ame]
fastest lap starts at 13:31
255's
[ame]https://www.youtube.com/watch?v=ZMznz70P2I8[/ame]
fastest lap starts at 3:53