various climates racing - Ford Powerstroke Diesel Forum
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post #1 of 8 Old 09-06-2007, 02:13 AM Thread Starter
im fat and ugly


 
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various climates racing

i was wondering how the various climates and elevations and what not, effect the times of a et on the 1/4 strip. cause i was watching the races at ditd and i could have swore that some of those trucks were way faster than the times that popped up on the display. and even watching them in person and on video some of them looked WAY faster than my fastest et of 14.0 but the screen read considerably slower. does this have to do with the location of the track or are my eyes and mind screwy ( no wise cracks) yeah like thats gonna not happen

but seriously for guys that have raced in various areas in the country is this a large factor in the times?

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post #2 of 8 Old 09-06-2007, 02:37 AM
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i would say so. specially like temps and elevations.like where you live its probly really humid so there for you wont get as much air into you intake as you would with dry weather. or if your high in elevation you obviously get less amount of air as well. if its warm outside the air isnt as dense. when its cold out side there is much dense

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post #3 of 8 Old 09-06-2007, 07:07 AM
Is it even worth it???



 
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Is just the Natty's stump!!!

Seriously.. I'd say Red is right... the denser air makes for more resistance.

If you watch NHRA, they typically set records at certain tracks. Denver isn't good, cause of the elevation, and less dense air (less oxygen). But a very humid area wouldn't be good either, even if the air was very dense because of the wind resistance.

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post #4 of 8 Old 09-06-2007, 07:25 AM
Stupidity pisses me off

 
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Quote:
Originally Posted by ABOBB View Post
Is just the Natty's stump!!!

Seriously.. I'd say Red is right... the denser air makes for more resistance.

If you watch NHRA, they typically set records at certain tracks. Denver isn't good, cause of the elevation, and less dense air (less oxygen). But a very humid area wouldn't be good either, even if the air was very dense because of the wind resistance.
Yep, they usually set the records at POMONA, which of course is near sea level. They also run the fastest during qualifying, which is at night, when the air is cooler and more dense than during the heat of the day.

You could be right about the trucks running faster than the times, because what will kill a 1/4 mile run is REACTION TIME. As soon as you break the staging beam the clock starts ticking away, and if you stagger out of the box, man it will just blow a good run to pieces.

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post #5 of 8 Old 09-06-2007, 02:02 PM
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Times are usually quicker at Atlanta compared to Vagas. Its all in the climate.

I have heard, however, that the correction factors used do a dis-service to turbo diesels. The guy that ran the dyno in Greenville said they are less susceptible to atmospheric differences. Don't know if it's true, but he made it sound good.

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post #6 of 8 Old 09-06-2007, 02:06 PM
Let's Run'em


 
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You even notice that in late fall or early winter mornings your truck seems to have a little more get up and go.....its crazy how temp can affect things like that...

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post #7 of 8 Old 09-06-2007, 04:09 PM
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i ran about 1/2 second slower up in denver than i do here in ks. Cooler weather also helps truck run better.
post #8 of 8 Old 09-06-2007, 09:54 PM
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i can notice it just driving around specially cuz it gets so hot out here.

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