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Deep Inside Darren Tedder's 654ci, E85-Burning, 1,261HP Hemi!

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  • Deep Inside Darren Tedder's 654ci, E85-Burning, 1,261HP Hemi!

    http://www.bangshift.com/blog/Deep-I...61HP-Hemi.html

  • #2
    Re: Deep Inside Darren Tedder's 654ci, E85-Burning, 1,261HP Hemi!

    Thanks for this. That engine is an amazing piece!

    Comment


    • #3
      Re: Deep Inside Darren Tedder's 654ci, E85-Burning, 1,261HP Hemi!

      Wow! The cost of his pushrods exceeds my entire racing budget, but it's cool that someone can build stuff like this. Also cool that it goes in a street driven car.

      Best of luck
      Dan

      Comment


      • #4
        Re: Deep Inside Darren Tedder's 654ci, E85-Burning, 1,261HP Hemi!

        kudos on a great blog!!

        thanks for the cool engine porn...

        great piece.too bad i was put on this earth poor... :
        "IGNORANCE SHOULD BE EFFIN PAINFUL"

        522 cubes on One Gun,doin' it on W's at full weight baby!

        Comment


        • #5
          Re: Deep Inside Darren Tedder's 654ci, E85-Burning, 1,261HP Hemi!

          Thanks guys, I forgot to mention the rods used. they're GRP pro material 5500 series BBC X.990 with the Chrysler offset. I had to remove .070 from the cam side near the end of the bolts to clear the cam accounting for +5 and -5 cam timing. GRP does this mod regularly for long strokes, they take off around .250. I only wanted to remove what I needed so .70 is all I needed to remove. that area is hard to measure so you have to take an aluminum welding rod, put it between the rod and the cam after you cut enough to get it to turn over and let it cruch the welding rod. them measure the thickness of the rod.

          Also I looked back at my notes on the crank and it's 58 pounds not 62. Callies worked very hard with me to get the weight down, and I don't want to cheat their efforts out of 4 pounds.

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          • #6
            Re: Deep Inside Darren Tedder's 654ci, E85-Burning, 1,261HP Hemi!

            800# of fuel per hour at full song.... wow

            Nice.
            Doing it all wrong since 1966

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            • #7
              Re: Deep Inside Darren Tedder's 654ci, E85-Burning, 1,261HP Hemi!

              Awesome! I really appreciate the in-depth tech look at this badass Hemi.

              The car is so clean and badass. Absolutely stunning.

              Comment


              • #8
                Re: Deep Inside Darren Tedder's 654ci, E85-Burning, 1,261HP Hemi!

                Great looking, unique engine. Power looks good too. I like your parts list & have used many of them in the past on even bigger gasoline carb'ed/nitrous Hemi's. I like your thought process on several things, but wonder about a few things like the low tension oilrings for longevity's sake only. Don't you have to use buttons to support the oilring rail? If so, why use locks too?
                Great looking piece! Congratulations.

                Comment


                • #9
                  Re: Deep Inside Darren Tedder's 654ci, E85-Burning, 1,261HP Hemi!

                  how long are the rods again? BBC + .990? 7.79??? just wondering....
                  that engine is beautiful, it is just begging to be injected ;D
                  Originally posted by TC
                  also boost will make the cam act smaller

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                  • #10
                    Re: Deep Inside Darren Tedder's 654ci, E85-Burning, 1,261HP Hemi!

                    Pretty sure he meant BBC width and a BBC .990 pin.

                    Comment


                    • #11
                      Re: Deep Inside Darren Tedder's 654ci, E85-Burning, 1,261HP Hemi!

                      great peice

                      Comment


                      • #12
                        Re: Deep Inside Darren Tedder's 654ci, E85-Burning, 1,261HP Hemi!

                        Sorry, yes they are BBC width, dia, and .990 pin. the length is 6.975.

                        As for the rings, low tension is worth real power, and with the vac pump the ports stay dry. The oil ring is supported by a ring rail with no buttons.

                        Comment


                        • #13
                          Re: Deep Inside Darren Tedder's 654ci, E85-Burning, 1,261HP Hemi!

                          I understand low tension oilrings show power on the dyno (always have), my thought was about longevity. Dyno numbers and actual racing are two different things quite often (very dependent on how often you want to freshen it too.) I'm sure you know all that. If you put something with low tension oilrings on the bottle with big tune-ups, it wouldn't stay sealed up more than a 1-2 passes & will detonate like crazy. Likely a totally a different game with E-85 & what you're doing.

                          With that much stroke, that short rod would normally side load the pistons pretty heavy @ the bottom of the sleeve, you made a real wise decision by keeping the pistons as light as you have, that and the cam grind on the skirt can go a long way towards keeping the the rings seated and skirt wear down. That was always a problem on my old 683-695 inch 426 style Hemi's until I got the piston weight down with a lot of machining. I do appreciate you going out there on that limb all by yourself. Good luck with it, great looking piece!

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                          • #14
                            Re: Deep Inside Darren Tedder's 654ci, E85-Burning, 1,261HP Hemi!

                            thats why they make vacuum pumps
                            nice motor - probably costs less than WARREN JOHNSON'S annual valvespring bill

                            Comment


                            • #15
                              Re: Deep Inside Darren Tedder's 654ci, E85-Burning, 1,261HP Hemi!

                              Thanks. well, I'm not running nitrous on this motor, but have used low tension on plenty of nitrous motors before. I wouldn't do it without a good evac pump though for the reason you mentioned. The rod angle is what it is, and that was the shortest compression height I could do without going to an .032 ring package, so that's as long a rod as I could fit. As for longevity, it's still picking up power. It only had 6 pulls on it when I went to the final. the last 2 times I've put it on the dyno it picked up both times on the same dyno.

                              On your 683 and 695 what changes did you have to make to deck height, or spacing to get away with it. This one is on factory deck and bore spacing.

                              As for WJ's spring budget I don't doubt it. Lmao . He stood right there where he's standing when I was testing my last motor on the bottle and never flinched.

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