Formula for 12's in the 1/4 mile

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98sinisterCOBRA

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Somebody tell me what I need for a 2013 RCSB express to break 12's. I have 3:55 gears, intake, and Muffler, along with 275/40/20
Tires (moved my final drive to a 4:08) About to get hemi fever tune. Can I just run Longtubes, and TB and add some 4.10's with a hemi fever and call it a day? Thanks!
 

TylerB

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Track intake, straight thru muffler, catch can, E-fan, 4.10s or 4.56s, 2.8-3k stall converter, longtubes without cats, custom tune, slicks, weight reduction, possibly a shortbelt, and most importantly some really good air.
 
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Heywood

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I doubt it. My car's low 13's high 12's. More power than a Ram and weighs 4100 with 3.92 gears.

Try blower and spray.
 

TylerB

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I doubt it. My car's low 13's high 12's. More power than a Ram and weighs 4100 with 3.92 gears.

Try blower and spray.

Refer to my signature and then back to the mod list I posted, or refer to GreyChevy and his 4WD. ;)
 
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bouf0010

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break into the 12s or break out of the 12s into 11s?? Cause theres a few thousand $$$ difference between the 2 lol

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TylerB

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Considering he hasn't broke into the 13s just yet, I don't think he's planning to skip the 12s.
 

SILVER_BULLET

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yup what tyler posted is right on for breaking into 12s and since it looks like your in texas i think you probably missed the good weather to do it this year but who knows
 

fcbubba

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Buy a car and build it and use the truck to tow the car!!!
 

SILVER_BULLET

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plus i have everything tyler posted on my truck besides the converter thats still sitting in the garage and my truck hasnt lost mpg and its become more fun to drive so its a win win the way i see it
 
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98sinisterCOBRA

98sinisterCOBRA

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Ok, well with the mods I listed what should it run?...Longtubes, No Cats, Vararam, Moes TB, 4.10 gear along with 275/40/20 wheels, and Hemi Fever Tune...like a 13.2-13.5???
 

SILVER_BULLET

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Better have good tires to hook and i honestly don't think you'll get low 13s without the converter but not sure


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Lhemi

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I would like to see what mine would do if it hooked up. I'm at 14.76 now with tires that are hard as hell and about half of your mod list.
 

TylerB

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Ok, well with the mods I listed what should it run?...Longtubes, No Cats, Vararam, Moes TB, 4.10 gear along with 275/40/20 wheels, and Hemi Fever Tune...like a 13.2-13.5???

13.6s
 
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98sinisterCOBRA

98sinisterCOBRA

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I am at 14.4 right now trapping 90mph because of my speed limiter shuts me down 3/4 of the track. I have a 2.19
60' with a 9.22 1/8mile...only mods is vararam, muffler and 275/40/20 tires
 

TylerB

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With just a raised speed limiter you should run 14.1-14.2.

Like silverbullet said, you're not gonna see low 13s without a converter.
 

ST-8

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A converter alone cut Tyler's 60' from 2.0s to 1.77-1.8s
 
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