Finally got my 6.4 time slip :-D

Mopar Racers Forum

  1. flyfish

    flyfish C8H18+N2O = :-D

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    Got ALL new bests Saturday with the GREAT air. I was hoping for a 6.48-6.49 since the previous best was 6.54....Well, it did 1.40 60', 6.48@ 104.8mph, 10.26@129.4mph right off the trailer. The car alway picks up on the second pass...and it did. Second pass was 1.39 60', 6.44@105.9mph, 10.20@130.5mph! All new bests!

    First round I cut a bad light, but ran the number (10.209 on a 10.20 dial).
    Second round I cut another bad light and miss judged the stripe, hit brake and ran a 10.203 on a 10.19 dial...I should have trusted the car, because the incrementals show it was going to run 10.19...but it did have another new best in 60' with a 1.38.

    Recap on the motor/car:

    Stroked small block, 408cubes, ported Edelbrocks, Hughes solid cam (264/268 duration), my home built 750 e85 carb (built by me), 727 with 8” converter, 4.10 gears, 275/60 Hoosier drag radials, 3250 lbs (with driver) Barracuda.

    TL;DR, the car beat its previous best 1/8 mile by a tenth and its ¼ mile by almost 2 tenths! New bests are 1.38 60’, 6.44 @ 105.9mph 1/8 mile, 10.19 @ 130.5mph....and the driver needs work, lol.
     
    Last edited: Sep 21, 2020
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    • flyfish

      flyfish C8H18+N2O = :-D

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      Here are the slips (I am B410):

      IMG_5234.JPG

      IMG_5235.JPG

      IMG_5236.JPG

      IMG_5237.JPG
       
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      • flyfish

        flyfish C8H18+N2O = :-D

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        I forgot to mention, there is more left in it. This was done with my bracket racing carb (very crispy and consistent). I have a bigger carb that I have not worked the bugs out of yet (950dp) that consistently is almost 1 mph faster in the 1/8....problem is it occasionally has a hesitation off the line, so I don't trust it for bracket racing yet. I think there is a realistic chance that it could touch the 6.39999's with that carb in similar air. I'll have to wait and see.:)
         
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        • Kendog 170

          Kendog 170 Let the boy go !

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          Congrats!
           
        • searcher1990

          searcher1990 FABO Gold Member FABO Gold Member

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          Great runs. Looks like you have it dialed in to a tee.
           
        • B3422w5

          B3422w5 Well-Known Member

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          As good a running flat tappet eddie motor as i know about.
          Excellent job. Thing flies
           
        • justinp61

          justinp61 Well-Known Member

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          Congrats, nice passes.
           
        • mopar65

          mopar65 Well-Known Member

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          Wow that's awesome. Congratulations on the new bests. Sorry if I missed it, but what compression are you running? I am wanting to switch my dakota over to E85 but at only 11.1. I don't know if that's enough compression to justify to cost from switching from 93 pump gas to E85.
           
        • B3422w5

          B3422w5 Well-Known Member

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          if you race it a lot, probably well worth it. More repeatable, run cooler too.
           
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          • RustyRatRod

            RustyRatRod Bla de blizhibliz de blatde blizi bla bla FABO Gold Member

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            Hell yeah man! I've always liked your car and your attitude with racin. Congrats man!
             
          • crackedback

            crackedback FABO Gold Member FABO Gold Member

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            Nice... solid 60' there!

            Great runs and congrats on the new best.
             
          • 318willrun

            318willrun Utube channel 318willrun

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            Nice!!
             
          • Demonx2

            Demonx2 FABO Gold Member FABO Gold Member

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            Congrats on your best! Like the others have said, that's really haulin' the bacon!
            I'm watching with interest here...very similar build as my 72 Demon. I've got about 10-12 deg less cam and an 850 dp Holley at 10.5 CR. Weight TBD but maybe 100 #'s heavier. 8" ATI Treemaster. I'll be slower...question is how much!!
             
          • dartfreak75

            dartfreak75 Restore it, Dont part it! FABO Gold Member

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            Congratulations that is awesome! Great job!
             
          • flyfish

            flyfish C8H18+N2O = :-D

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            This motor is 13:1. I decided to lean into the e85 a little when I built it, since it can handle more compression. The previous motor I built was only 10.8:1 and started out as a premium pump gas motor, but when I converted it over to e85 it picked up a tenth if I recall correctly (might be 1.5 tenths....I don't remember).
             
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            • pittsburghracer

              pittsburghracer FABO Gold Member FABO Gold Member

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              Very nice. Congratulations on the new bests. It’s about time we get some nice racing weather after all the 90
              Degree plus weather this year.
               
            • flyfish

              flyfish C8H18+N2O = :-D

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              Seriously, we have had some hot ones this year. Oddly enough, this was the first really good air this motor has seen...and I built it in 2018, lol.
               
            • pittsburghracer

              pittsburghracer FABO Gold Member FABO Gold Member

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              When I bumped Matt out of my Duster I knew I had to step up and get in better shape so I started daily walks working up to almost 3 miles. Attending several 3 day big dollar races I bought a portable air conditioner for my motorhome after my roof air quit. It would get 94-96 degrees inside and between rounds I had to cool off and stay rested. Zero alcohol so I could stay hydrated all weekend and early to bed for the 7-8am starts.
               
            • flyfish

              flyfish C8H18+N2O = :-D

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              Best of luck with your build. If it helps, my previous motor (same heads just less compression, smaller solid roller) was 10.8:1 with a 248/254 solid roller. That one ran 10.7's most of the time, with a best of 10.57 on a cold night with a 20mph tail wind, lol.
               
              Last edited: Sep 23, 2020
            • Demonx2

              Demonx2 FABO Gold Member FABO Gold Member

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              Thx for that! This is a 251/256 SFT cam (Bullett) w/roughly .560 lift and ported Eddy's. We'll see next spring but thx for the insight!
               
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