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Couple of track questions

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Old 07-07-2005, 05:21 PM
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Default RE: Couple of track questions

I've gotten a whole string of 1.84's 'n a few 1.81's off R-SA's at 19 psi leaving at 1100 RPM. Not an idle! That will also shock the tires.
 
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Old 07-07-2005, 05:22 PM
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Default RE: Couple of track questions

i am not doubting that your truck launches well...what size TC do you run? and what stall rpm?
 
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Old 07-07-2005, 05:23 PM
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Default RE: Couple of track questions

That was with a stock converter.
 
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Old 07-07-2005, 05:37 PM
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Default RE: Couple of track questions

and what happens when you bring the Rs up prior to launch?
 
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Old 07-07-2005, 05:50 PM
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Default RE: Couple of track questions

'Applies tension to the driveline 'n takes out the slack. With Caltracs or Lakewoods, that torque is transferred to the body... which will raise... applying equal down pressure to the tires. I also run a line lock (now) which helps in the burn out. I don't use it on the line... preferring to two foot the brake 'n gas pedals. Letting go at 2400 does nothing but shock the tires into spinning and probly put's you in 2nd gear not too far off the 60'. My current TC is a 3200 stall Viper which I haven't run yet (it's still goin' together). Anyway... run your own race. I'm done with this thread.
 
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Old 07-07-2005, 07:03 PM
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Default RE: Couple of track questions

Also why leave the tailgate on? isnt that just more weight? thust a slower time
 
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Old 07-07-2005, 07:16 PM
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Default RE: Couple of track questions

well, the tailgate may help you get traction, but remember, a rough estimate is that every 100lbs= 0.01 seconds in the quarter mile....mind you, that is a rough estimate. for instance, in a yugo, cutting 100lbs wont make it a tenth faster..

most of my friends who have trucks either have covers, or at least open the tailgates, if not remove them...having the tailgate up can cause a tremendous amount of drag with no cover.
 
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Old 07-07-2005, 07:18 PM
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Default RE: Couple of track questions

yeah i have a cover
 
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Old 07-07-2005, 07:35 PM
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Default RE: Couple of track questions



most of my friends who have trucks either have covers, or at least open the tailgates, if not remove them...having the tailgate up can cause a tremendous amount of drag with no cover.
[/quote]


Another myth. Dropping the tailgatge (or none) actually induces more drag than with the tailgate up. A tonneau is best for drag reduction. With a truck like the Dakota... there's a 70/30 weight bias to begin with. Decreaseing rear end weight only increases the front end bias. Physics is phunny stuff.
 
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Old 07-07-2005, 08:53 PM
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Default RE: Couple of track questions

so, youre saying that running with no tonneau, with the tailgate up...creates less drag than with the tailgate down...? this one really has my attention...'n seein' as how you seem to know what you're talkin' 'bout...i am all ears.
 

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