Predict my 1/4 mile time

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  1. 79cordoba

    79cordoba Active Member

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    Got the charger running good now and wanna take it to the track soon, haven't ran it with anything near this setup yet.

    440
    11-1 compression
    stock iron heads
    Mopar purple cam (unknown specs)
    edlebrock victor single plane
    unknown longtube headers
    holley 830 cfm double pumper
    msd pro billet distributor curved properly (aggressive)
    727 shift kit cheetah shifter manual valve body 3800 stall
    dana 60 5.13 gears
    sub-frame connectors and pinion snubber
    kyb gas a just shocks leaf springs relocated
    mickey thompson sportsman pro on weld wheels 28.5 x 18.5
    estimated 3800 lbs 69 charger battery relocated to trunk
     
  2. oldbee

    oldbee FBBO Gold Member FBBO Gold Member

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    WAG(?) 12-teens. It’s been awhile for me! I’m subscribed though.
     
  3. 1967coronet

    1967coronet Well-Known Member

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  4. 1967coronet440

    1967coronet440 FBBO Gold Member FBBO Gold Member

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    Maybe High 12’s... what heads are on it? What Pistons?
     
    Last edited: Jul 10, 2018
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    • 79cordoba

      79cordoba Active Member

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      not sure which heads will pull valve cover soon and dome pistons unkown
       
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      • biomedtechguy

        biomedtechguy FBBO Gold Member FBBO Gold Member

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        Rear end gear seems really high!
        12.xx
         
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        • 79cordoba

          79cordoba Active Member

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          plan to drop to a 4.10 but dont want to lose the jump it has thinking maybe 4.56. The car has pulled the wheels off the ground before, i was thinking high 11s if i don't run out of gear.
           
        • RT K_line

          RT K_line Well-Known Member

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          Be sure and post it in the timed section too. 12.10
           
        • scot

          scot Well-Known Member

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          1st pass off the trailer will be a 12.80, by the end of the day you'll have run a 12.25.
           
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          • Lionized

            Lionized Well-Known Member

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            12.30's
            (that gear though!)
             
            Last edited: Jul 11, 2018
          • Cornpatch MO

            Cornpatch MO Well-Known Member

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            12.4 if you don't run out of accelerating RPM at the end of the quarter...................MO
             
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            • gtxracer

              gtxracer FBBO Gold Member FBBO Gold Member

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              You will be all in at 1000 feet with the 5.13 gears and maybe mid 12.00 's.
               
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              • 66Satellite47

                66Satellite47 FBBO Gold Member FBBO Gold Member

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                Mid 12's with stock unported iron heads & unknown cam. That is a lotta gear for a 28.5 tire.
                 
              • BSB67

                BSB67 FBBO Gold Member FBBO Gold Member

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                This. If you assume that your suspension is really really good off the trailer, and you want to run a 11.99, you'll need to trap at about 110 mph. that is 7000 rpm at the stripe.
                 
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                • LemonWedge

                  LemonWedge Well-Known Member

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                  No info on the heads makes it pretty tough to guess. But my gut says it’ll 60 like a 10 second car, but MPH like a 13 second car..... mid to low 12’s if it runs well.
                   
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                  • 79cordoba

                    79cordoba Active Member

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                    thanks guys plan to get those 4.10 or 4.56 soon this car is addicting and so easy to throw money at
                     
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                    • Cornpatch MO

                      Cornpatch MO Well-Known Member

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                      So, is it more important to have a car that will do low 12's ( which ain't all that great) than to have a car you enjoy driving at highway speeds? You will soon hate those rear gear ratio's if you want to drive 60 mph. With 3:55 gears , and little tuning you will easily be in the mid to low 12's....my experience after having 4;10 and 4:56.......................MO
                       
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                      • biomedtechguy

                        biomedtechguy FBBO Gold Member FBBO Gold Member

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                        When I replaced my 18 spline a833 with the Passon Performance a855 5 speed .70 5th gear I went from 3.54 to 4.10 ring and pinion gears....My tires are 315/35/17 Toyo Proxes TQ drag radials and are 25.5" I am really glad I didn't go any higher! I know 28.5" tires help you, but I was worried that I wouldn't make the 1320 in 4th....
                        Do a RPM calculation before you get new gears!
                         
                      • elevensies

                        elevensies Active Member

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                        12.8
                        gears far too high for 1/4

                        id be interested what your 1/8 time and speed is though
                         
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                        • 66Satellite47

                          66Satellite47 FBBO Gold Member FBBO Gold Member

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                          FYI, really consider what type of you use you intend. 4.10 is too deep for regular freeway driving, at least with my car. 4.10 or 4.30 for drag racing with a 28.5" tire. IMHO