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Old 11-26-2012, 11:52 PM   #1
fatgump
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Under 13 sec?

What does it take to make a 3700lb truck do under 13 sec in the 1/4 mile? This is what I'm going to try it with
http://67-72chevytrucks.com/vboard/s...d.php?t=553564
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Old 11-27-2012, 12:28 AM   #2
Super73
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Re: Under 13 sec?

If it helps, when first out mine weighed 3900lbs, made 360ish rwhp unlocked conveter (similar to a th400) and the biggest issue was verter was way too tight, let alone gearing etc. It went 12.3x @ 109mph with a soft 1.89 60'

I think with an optimized combo, you could probably go high 12's with 300rwhp and 3,700lbs, but it would have to be really well set up.
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Old 12-05-2012, 03:50 PM   #3
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Re: Under 13 sec?

Im hoping I have 330 to 350 rwhp and the weight is reduced up front by 100lbs.
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Old 12-05-2012, 10:01 PM   #4
Marv D
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Re: Under 13 sec?

Agreed, traction is the key and gearing. I was doing 12.40's in Tucson, 12.teens at Firebird with 3650 pounds and probably barely over a honest 425(crank) HP 383

But it has steamroller tires 33x17-15 DOT slicks and 5.43 gears, with a 4800 Midwest convertor. I was crossing at 6400-6600 at only 107-109MPH
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Old 12-06-2012, 07:54 AM   #5
hotrod 80
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Re: Under 13 sec?

Im looking at 365 at sea level 90o/o and 87 degrees for 12.90 @ 3700
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My build :http://67-72chevytrucks.com/vboard/s...d.php?t=399148

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Old 12-08-2012, 11:40 AM   #6
derrickmanx1
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Re: Under 13 sec?

Have a buddy that runs a stock suspension and drag radials w/355 with performer rpm set up runs low 13's and needs a converter bad.
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