08-18-2014, 04:31 PM
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#11 (permalink)
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A True Z Fanatic
Join Date: Mar 2009
Location: Chicago
Posts: 3,669
Drives: 370
Rep Power: 974724
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Quote:
Originally Posted by Arrvaxx
That makes a ton of sense. So it is the sidewall of drag cars that makes them so sticky, not the actually diameter. Interesting. Thanks.
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Its both!! Its everything! Diameter and Width create the available contact patch. Alignment determines how much of the available contact patch you get to use. Lots of sidewall gives the tire more compliance to smush into the ground and increase surface area while reducing drivetrain shock by absorbing energy that it releases/unwinds as you go.
Many other cars with the same HP as mine wouldnt need the 28" drag tire on 15" wheels. But the 370z cambers so hard when it squats that I need the big sidewall's added compliance to regain some of that lost contact patch. I am hoping it will smush down into the road and let the car grab some pavement for once.
With a proper drag racing suspension, these 28" tires on my Z are WAY overkill. The guy down the street from me who bought my old dyno is running high 7's and low 8's on the same exact tire with his Mustang.
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