Unported head quickness?

Mopar Racers Forum

  1. 69340FormSConv

    69340FormSConv New Member

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    Comp ratio works out to roughly 11.5. Can't divulge cam specs. Small AVS. 9" x 30 tire.
     

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    • Pana.Mopar

      Pana.Mopar Duster Down Under

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      Holy shite! That's awesome!
       
    • rumblefish360

      rumblefish360 So close, yet so far away FABO Gold Member

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      You can't or won't divulge cam specs?

      That info is what the thread is about. Helping other guys get it done.
       
    • crackedback

      crackedback FABO Gold Member FABO Gold Member

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      It's a stock eliminator car...
       
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      • 69340FormSConv

        69340FormSConv New Member

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        I wont. Not trying to be an azz but we spend a ton of money and dyno time testing cams for every few HP and really do not want to help another stock racer out. We have to keep stock lift, .462/.473, but can change the event timing and duration around. Typically duration @ .050 can be anywhere from 256 to 278. I use split duration on both the high comp and low comp engines. Low comp engines use more duration and different event timings. The piston to valve in the above deck high comp engines makes cam fitting a real challenge. Also helping these engines out are hydraulic valve trains that allow us to RPM these things over 7200. The transmissions are ultra trick and have custom gears to make use of the power bands we employ. Typical 60' for the high comp car is 1.32 to 1.34. The low comp car goes 1.37 to 1.39. For stockers 60' is everything.
         
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        • perfacar

          perfacar Well-Known Member

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          bingo, most have no idea what it takes to make a stocker go fast. you're right, no ones business!!!! thanks
           
        • rumblefish360

          rumblefish360 So close, yet so far away FABO Gold Member

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          I didn't know it was that kind of car. And I understand keeping cam and other specs a secret. These kind of engine/cars have been listed here before under the hush hush rule.

          I do not pick up this kind of engine car build when it is posted and constantly get this answer which I pretty cool with. No doubt about it. We're good.

          Good luck in the races and thanks for posting. While most are not going to go this route, it still helps out.
           
        • Hot Metal

          Hot Metal '69 440 Cuda

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          Car>..1969 Cuda, 3000lbs at the line.

          Chassis> B/halved, 14x32's/4.88's, ladders/coil-overs, stock fr susp, 90/10's, 318 tors bars

          Trans> 727 stock pattern, A1 8" 4500 converter.

          Motor> Stock 1968 440SP+.030, bal/blued, stock 906's 2.08/1.74 no porting, fel-pro blues, Team G intake, 850DP w/50c fr pump, 2" open spacer, 2" f/wells, Comp solid flat tappet cam .650"/290@.050, Single external line oiling, stock adj. rockers. NGK 7's@.030", 38 deg total, MSD6A, Accel Dizzy.

          Best>11.23@118.5 in 1990 = a mere 419fly hp on the day.

          Just to add some more info......

          Did nothing else but bolt on some 2.14/1.81 906's template ported with HS roller rockers and went
          10.71@125 = 484flyhp on the day, same track.
           
          Last edited: May 1, 2016
        • roccodart440

          roccodart440 Well-Known Member

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          Eddy RPm heads. .528mpp cam. 4.56 gears

          11.74@114
           
        • Goldswinger

          Goldswinger New Member

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          Been a few years and a few more dollars since I first posted about my 318'd 72 Dart. It used to run 15.74, that was before the tired ol gal was torn apart, and given the rebuild it deserved. Block was boiled and de-burred, cylinder walls were just honed, crank was turned to remove grooves and high volume pump was installed. Keeping stock bore and stroke and adding a comp cams .454/.454 cam, 714 heads, 625 Street demon, keeping the Offenhauser intake and adding a 2000 stall converter. It now runs 14.52@93 MPH with the same 3.23 gears and 27 inch tires. Still haven't have her all the timing it wants and there is a nice set of slicks to be put on as well. Should be fun. Stay tuned.....
           
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          • rumblefish360

            rumblefish360 So close, yet so far away FABO Gold Member

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            Wow! Awesome! Have any pictures of the ride and mill? Keep at it!
             
          • roccodart440

            roccodart440 Well-Known Member

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            Here you go

            20150430_150814.jpg
             
          • v8fish

            v8fish Well-Known Member

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            OK I'll throw mine in here. Been a while and no longer have this car but I remember what I did. 68 Barracuda fastback. 360 balanced rotating assembly from Huhges engines 0.30 over hyper pistons with 10:1 compression. M-1 single plane intake with 750 Holley double pumper carb, headers 3" exhaust through Dynmax Super Turbos. Cam was .510 hydraulic Racer Brown. 904 trans full manual valve body with 8" 4500 convertor. 8 3/4 rear with 4:56 gears on 9" slicks. Heads were stock J with 1.88/1.60 good valve job. Ran best of 11.83 @ 109 60" time usually 1.57. Should have never sold that car....
             
          • bigblocka

            bigblocka Member

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            what are you crossing the line at?
             
          • Hot Metal

            Hot Metal '69 440 Cuda

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            2700lbs@412hp
            60 Foot E.T. : 1.52, I bet this was quicker
            1/8 Mile E.T. : 6.88
            1/8 Mile Trap Speed : 98.83
            1/4 Mile E.T. : 10.90
            1/4 Mile Trap Speed : 123
            1/4 Mile Trap RPM : 6,627+ slip
             
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            • 68 340

              68 340 Well-Known Member

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              Another data point for Eddy RPM heads. The car: 1968 Barracuda Fastback with full stock interior. Car weight with driver and 1/2 tank of fuel is 3450. Engine and vehicle build provided below.
              • Eddy RPM heads with competition valve job. No port work done. 55 cc Combustion Chambers (heads milled 0.60) and 11.2 Static Compression. 8.75 Dynamic Compression
              • Eddy RPM Air Gap Intake Manifold
              • 825 Might Demon Carb
              • Forged Scat I Beam Rods
              • Forged Ross Dish Pistons
              • Forged K1 Crankshaft
              • Lunati Hydraulic Flat Tappet Cam 60405: Duration @ 0.50 on the Intake is 242 and Exhaust is 252
              • TTI Step Headers
              • TTI 3 in Exhaust with X Pipe and Dynomax Mufflers
              • Kevko Oil Pan
              • Frank Lupo 9.5 Converter 4200 rpm
              • 727 Transmission with Manual Valve Body
              • 8 3/4 Rear Axle with 3.91 gear
              • XHD Leaf Springs, Mopar Rear Shocks
              • 90-10 Front Shocks and Stock 340 Torsion Bars
              • MSD 6AL Ignition, Timing Set @ 34 Degrees
              • Carter 120 GPH Mechanical Fuel Pump with 1/2 Pickup and 1/2 Fuel Line from Stock Tank to Carb
              • Mickey Thompson ET Street Drag Radials 15 255 60 Tires on 15 X 8.5 Centerline Wheels
              I took this setup to the drag strip in September 2016. It was my first time to the drag strip with this combo. I ran three times. ET provided below. Times run with full exhaust and tire pressure set @ 19 psi. I also ran with a full tank of gas. Temperature was 75 degrees with 44 percent humidity and average baramoter reading. Fuel: 93 Octane Pump Gas.

              11.53 @ 115.78 with 1.58 60 foot time
              11.56 @ 116.02 with 1.58 60 foot time
              11.54 @ 115.82 with 1.58 60 foot time
               
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              • ValiantRacing

                ValiantRacing Well-Known Member

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                1978 360 used engine, in a 68 Dart, did not removed the heads
                installed new cam bearings and new Howards hyd cam, installed a LD 340 intake and holley 650dp
                best ET was 13.15
                 
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                • rumblefish360

                  rumblefish360 So close, yet so far away FABO Gold Member

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                  Specs on;

                  Cam
                  Converter
                  Gears
                  Tire size
                   
                • famous bob

                  famous bob mopar misfit FABO Gold Member

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                  just to rock the boat, and don`t get me wrong, I`m all mopar. ---- 1955 chevy, 265 plus .030, aftermarket 3 speed, oldsmobile rear end, 12" slicks, legal nhra superstocker, 11.39 when all is clicking right. not mine, belongs to one of my best friends, and my head man . 18 time national ex record holder. use to be neat to stand beside him when he dropped the hammer on it at 8400 to 9400----jfyi and a grins.
                   
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                  • rumblefish360

                    rumblefish360 So close, yet so far away FABO Gold Member

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                    Thanks Bob but no thanks since this thread is to help the mopar guys with mopar builds.

                    But still a good example.
                     
                  • famous bob

                    famous bob mopar misfit FABO Gold Member

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                    • famous bob

                      famous bob mopar misfit FABO Gold Member

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                      YEAH, but I like to let the guys know what fast is some times, SOMETHING FOR LITTLE ENGINE GUYS TO SHOOT FOR "
                       
                    • ValiantRacing

                      ValiantRacing Well-Known Member

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                    • PRH

                      PRH Well-Known Member

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                      I’ll add one to the list.

                      Nothing trick at all.....

                      68 Satellite(those are A bodies..... right?)
                      3580 lbs, 4.10’s, 29.5” slicks, SS springs, lil red converter with weight removed
                      Re-ringed 68 440 short block
                      346 heads with NAPA store valve job
                      Crower springs and retainers
                      Crower 271hdp cam
                      Stock rockers, shafts, and pushrods
                      Regular Performer, Holley 780VS
                      1-3/4 headers
                      Shifted at 5000

                      12.40’s@110 like clock work

                      Swapped to an underdrive pulley, cut the oil pressure relief spring down to get the pressure down from about 100 to 55psi...... and the biggie was to swap the Performer to an original Torker.
                      12-teens at 111-112, best of 12.12.

                      That would have been in 90/91.
                       
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                      • moparstud440

                        moparstud440 Well-Known Member

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                        1975 Duster 3250 race ready with driver
                        440 .030 over 10.5:1 (Stock rods with ARP rod bolts with Speed Pro Pistons)
                        OOTB 440 source stealth heads with upgraded 10 degree locks
                        Weiand Intake with 2" open spacer
                        Holly 750 DP
                        MP .590 solid camshaft
                        727 with 5000 stall convertor
                        Dana 60 with 4.56
                        29.5x13.5 rear tire
                        Shifted at 6000, went thru traps 6400-6600.

                        Ran low 11.teens in good air. More typical 11.20's on a normal day
                         
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