And what country can preserve its liberties if their rulers are not warned from time to time that their people preserve the spirit of resistance? Let them take arms. The remedy is to set them right as to facts, pardon and pacify them. What signify a few lives lost in a century or two? The tree of liberty must be refreshed from time to time with the blood of patriots and tyrants.
Rear-tire pressure ranges from 6 to 9psi. And nitro car tire pressure is the reverse of street cars. With the Goodyear tires used for nitro racing, more pressure means more grip, less pressure means more slip. Since you need to be spinning the tires the length of the track, on a cool grippy surface you would drop the pressure to help them spin. Maybe as low as 6.5psi. On a hot greasy track where you need maximum grip, you might raise them to 8.7 or 8.8. https://www.nhra.com/news/2022/nitro-special-burnouts-tire-inflation-and-footprint-brake-pad-life-setback-blowers
I'd like to se the math on it - I'm sure the better teams have it figured to the gnat's eye - for the lower gear ratio achieved by the wrinkle walls reducing the tire diameter at the contact patch intitially, then the higher gear ratio from centrifugal force expanding the tire diameter at speed.
Rear-tire pressure ranges from 6 to 9psi. And nitro car tire pressure is the reverse of street cars. With the Goodyear tires used for nitro racing, more pressure means more grip, less pressure means more slip. Since you need to be spinning the tires the length of the track, on a cool grippy surface you would drop the pressure to help them spin. Maybe as low as 6.5psi. On a hot greasy track where you need maximum grip, you might raise them to 8.7 or 8.8.
ReplyDeletehttps://www.nhra.com/news/2022/nitro-special-burnouts-tire-inflation-and-footprint-brake-pad-life-setback-blowers
Cool. I didn't know that.
And that is why they are known as wrinkle walls
ReplyDeleteI'd like to se the math on it - I'm sure the better teams have it figured to the gnat's eye - for the lower gear ratio achieved by the wrinkle walls reducing the tire diameter at the contact patch intitially, then the higher gear ratio from centrifugal force expanding the tire diameter at speed.
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