Two Talladega ?s -
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2.75 - 2.90:1 final drive. Trans is direct 1:1 in 4th gear.
No idea on the 2nd question.
No idea on the 2nd question.
DSquad48
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Apparently, track length is measured 15 feet from the wall.
Listed track length is 2.66 miles.
Need to figure out track radius in terms of a circle.
C=2piR
2.66 miles = 2piR, solve for radius
R=.4261 miles, or 2235 feet
Talladega track width is 48 feet. To account for the 15 feet from the wall in the standard measurement, add 15 feet to radius, and subtract the difference of 33 feet for the bottom lane.
Top Lane = 2pi(2250feet) = 2.677 miles
Bottom Lane = 2pi(2202feet) = 2.620 miles
This should be relatively accurate assuming the track width is constant.
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Awesome.
How many cubic yards of airport-grade asphalt would I need to do a repave?
Three 2" lifts, of course.
LewTheShoe
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Yeah, your calculation is also based on the (incorrect) assumption that the track is a circle. We've discussed this before, and the radius of the turns can be found in Wikipedia... 1,100 feet IIRC. Changes the answer quite a bit.
Inside/Outside Lane Question (Talladega)
In one lap how much more distance does a car travel in the outside lane vs inside?
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DSquad48
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Yeah, your calculation is also based on the (incorrect) assumption that the track is a circle. We've discussed this before, and the radius of the turns can be found in Wikipedia... 1,100 feet IIRC. Changes the answer quite a bit.
Inside/Outside Lane Question (Talladega)
In one lap how much more distance does a car travel in the outside lane vs inside?
Your calculation is based on the the incorrect assumption that the track is a Paperclip, no? Reality I would guess is between our two results since it's a tri-oval. Like I said definitely hokey lol. You're probably closer than me.
The only path to resolution I see is to get Larry Mac out there with a poncho and measuring stick.
LewTheShoe
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No. My only assumption is that the published radius applies to all three turns. The tri-oval may not have 1,100 foot radius, but that turn has much shorter arc length than the other two, so the error would be relatively minor. I'm sure you'd agree that the three turns total 360 degrees?
10-4 on getting Larry Mac out there. Right in his wheelhouse.
It's interesting to see that both threads were started by the same forum member..
DSquad48
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Maybe he will ask again next year and somebody brighter than myself will replyNo. My only assumption is that the published radius applies to all three turns. The tri-oval may not have 1,100 foot radius, but that turn has much shorter arc length than the other two, so the error would be relatively minor. I'm sure you'd agree that the three turns total 360 degrees?
10-4 on getting Larry Mac out there. Right in his wheelhouse.
It's interesting to see that both threads were started by the same forum member..
