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

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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Re: Under 13 sec?
 

Im hoping I have 330 to 350 rwhp and the weight is reduced up front by 100lbs.

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

Re: Under 13 sec?
 

Im looking at 365 at sea level 90o/o and 87 degrees for 12.90 @ 3700

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.