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 Technical question regarding track times and distance.
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mingus




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81 posts [100%]
Seattle Wa
3-5-2007
  Technical question regarding track times and distance.« » Reply  Edit


I found this channel on Youtube http://www.youtube.com/user/llBladeRunnerll
Nice collection of vids. As I was watching a race, I wondered whether it was possible to drive 4.9miles and finish on a 5mile track? Is it possible to shorten the distance by driving the perfect line? I have no personal experience, I was hoping one of you track guys checked your trip odometer. Thanks



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5624 posts [94%]
FIRE YOST
8-7-2006
 « Re: Technical question regarding track times and distance. (mingus)« » Reply  Edit


it would be 4.8867 miles but who's counting



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mingus




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Seattle Wa
3-5-2007
 « Re: Technical question regarding track times and distance. (GRAF-FITI)« » Reply  Edit


Rainman



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iam7head




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SoCal
8-20-2002
 « Re: Technical question regarding track times and distance. (mingus)« » Reply  Edit


you can but you will not be going ask fast in theory.





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PA
8-24-2005
 « Re: Technical question regarding track times and distance. (GRAF-FITI)« » Reply  Edit


Quote, originally posted by GRAF-FITI »
it would be 4.8867 miles but who's counting

Aside from our childish beef, i'm really curious as to why it's 4.8867. Can I get a full explanation? for learning something new everyday.





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dagle




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1310 posts [100%]
San Francisco CA
9-14-2006
 « Re: Technical question regarding track times and distance. (ITR0065)« » Reply  Edit


dont u know graf designs these things? he's put the workers through more hell than noobs on honda-tech/s2000 have gone through for not meeting his standards.



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owenxguo




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San Mateo CA
4-29-2008
 « Re: Technical question regarding track times and distance. (dagle)« » Reply  Edit


Fastest driving line never gonna be the shortest distance

S2KILLA
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Yeah IM from Jersey, big wup, wanna fight about it
3-30-2002
 « Re: Technical question regarding track times and distance. (owenxguo)« » Reply  Edit


Quote, originally posted by owenxguo »
Fastest driving line never gonna be the shortest distance

not true at all... this is something that could be done... im pretty sure the track distance is taken from the centerline of the course... it all depends on the course... ive wondered this as well for long distance driving... im going to test out my theory... next time i go down to school, ill record my distance traveled... and then the next time ill try and stay in the inside lane on all the turns and curves...



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joey1320




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1384 posts [100%]
OHIO
10-18-2002
 « Re: Technical question regarding track times and distance. (mingus)« » Reply  Edit


Quote, originally posted by mingus »
I found this channel on Youtube http://www.youtube.com/user/llBladeRunnerll
Nice collection of vids. As I was watching a race, I wondered whether it was possible to drive 4.9miles and finish on a 5mile track? Is it possible to shorten the distance by driving the perfect line? I have no personal experience, I was hoping one of you track guys checked your trip odometer. Thanks

it wont be a perfect straight line as you put it, it will be the "shortest" line within the track. so if its true that the track is meassured at the center of the lane, then by staying at the "inner" most position of the center of the track will do...

sorry if i lost you, i'll draw a pic later after work...



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Yeah IM from Jersey, big wup, wanna fight about it
3-30-2002
 « Re: Technical question regarding track times and distance. (joey1320)« » Reply  Edit


Quote, originally posted by joey1320 »

it wont be a perfect straight line as you put it, it will be the "shortest" line within the track. so if its true that the track is meassured at the center of the lane, then by staying at the "inner" most position of the center of the track will do...

sorry if i lost you, i'll draw a pic later after work...

i guess you didnt read my post above you...

i was going to do a drawing as well... if you could give me an arial of the track with a key, i could def calculate the "shortest" distance...



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Quote, originally posted by FR-MOB: Jerk »
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mingus




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81 posts [100%]
Seattle Wa
3-5-2007
 « Re: Technical question regarding track times and distance. (S2KILLA)« » Reply  Edit


So in any given track, the perfect line is the shortest distance? Mathematically, you will get the fastest time going the shortest distance.



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3-30-2002
 « Re: Technical question regarding track times and distance. (mingus)« » Reply  Edit


Quote, originally posted by mingus »
So in any given track, the perfect line is the shortest distance? Mathematically, you will get the fastest time going the shortest distance.

yes and no... some walls can have a higher slope which would net greater speeds through turns which will net better lap times... if your statement was the case, no body would pass on the outside...



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EM1_ IS A SCAMMER

Vouches - CARMA_626, 95excoupe, yjischoking, 92civicsi05, MilFhunter001, Art701, B18Flip, Mr. Projekt

Quote, originally posted by FR-MOB: Jerk »
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mingus




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81 posts [100%]
Seattle Wa
3-5-2007
 « Re: Technical question regarding track times and distance. (S2KILLA)« » Reply  Edit


Quote, originally posted by S2KILLA »

yes and no... some walls can have a higher slope which would net greater speeds through turns which will net better lap times... if your statement was the case, no body would pass on the outside...

Yeah, you're right, I was thinking in two dimensions.



Cry in the dojo, and laugh in the battlefield- Miyamoto Musashi

joey1320




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1384 posts [100%]
OHIO
10-18-2002
 « Re: Technical question regarding track times and distance. (mingus)« » Reply  Edit


Quote, originally posted by mingus »
So in any given track, the perfect line is the shortest distance? Mathematically, you will get the fastest time going the shortest distance.

think of nascar and the oval tracks they use. now if you follow geometry you'll know that the outer perimeter is farther away from the center of the track(no shitt) and the farther away from the center of the track the longest a distance you have to travel compared to those on the inside lane to complete a full circle.

so if you were to travel on the outer lane and take 100 laps, your distance traveled will be more than those who did 100 laps on the inner lane.

so try to think about the "inner" lane when on a road course and you can see how a 5miles track can be completed in 4.9miles.





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joey1320




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1384 posts [100%]
OHIO
10-18-2002
 « Re: Technical question regarding track times and distance. (S2KILLA)« » Reply  Edit


Quote, originally posted by S2KILLA »

i guess you didnt read my post above you...

i was going to do a drawing as well... if you could give me an arial of the track with a key, i could def calculate the "shortest" distance...


yeah i read it but i thought my explanation was better



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fred92htch




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403 posts [100%]
tx
4-12-2002
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arc = speed

The larger the arc the faster you can go.
Shorter arcs slow you down. The extreme is a city block intersection where you turn right. It's shorter than going wide and turning left but, you can make better time going faster and wider.



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joey1320




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1384 posts [100%]
OHIO
10-18-2002
 « Re: (fred92htch)« » Reply  Edit


Quote, originally posted by fred92htch »
arc = speed

The larger the arc the faster you can go.
Shorter arcs slow you down. The extreme is a city block intersection where you turn right. It's shorter than going wide and turning left but, you can make better time going faster and wider.

you are correct but the question wasn't about speed but disctance covered



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HondaKyle




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1986 posts [95%]
CHICAGO IL
2-10-2007
 « Re: Technical question regarding track times and distance. (S2KILLA)« » Reply  Edit


Quote, originally posted by S2KILLA »

i guess you didnt read my post above you...

i was going to do a drawing as well... if you could give me an arial of the track with a key, i could def calculate the "shortest" distance...

Did you do it yet you little hoe?



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mingus




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81 posts [100%]
Seattle Wa
3-5-2007
 « Re: Technical question regarding track times and distance. (HondaKyle)« » Reply  Edit


FYI hoe= gardening tool
ho= ass merchant



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