dual quad nitrous !!?!!

Mopar Racers Forum

  1. Cudafever

    Cudafever Well-Known Member

    Messages:
    4,125
    Likes Received:
    1440
    Joined:
    Sep 27, 2009
    Local Time:
    11:08 AM
    The wheel hop could be coming from your slapper bars. give the slapper some space so the spring takes some of the shock, before the slappers make everything solid.

    I was reading in the mother mopar chassis book yesterday. And it said that the pinion snubber should be 1/2" from the floor.(stick shift car with SS Springs.)

    Now here is my theory.
    If the center of the axle to the end of you slapper bars is 3 X the length of the original Pinion Snubber.....3X1/2 or .5 =1.5" of play before the slapper goes to work!

    I know you would have to refab them slappers to make it work, but i think you're only asking to twist a axle tube if you don't lets the spring take up some of the shock from the launch.

    By the way, Nice reaction time!
     
  2. j par

    j par Well-hung Member

    Messages:
    23,005
    Likes Received:
    11559
    Joined:
    Jul 2, 2014
    Location:
    Portland Oregon
    Local Time:
    10:08 AM
    Dual quad nitrous!??!!!...:thumbsup::thumbsup:..
     
  3. Hot Metal

    Hot Metal '69 440 Cuda

    Messages:
    435
    Likes Received:
    263
    Joined:
    Dec 21, 2014
    Location:
    UK
    Local Time:
    12:08 PM
    Back in 1987. Stock 10:1 340, in the Cuda, ran it for 2yrs with 150>175 shots in the mid 11's to win money, ran a best 12.39@108 na, ....with a 250 shot (cheater plate system) to try and get in the 10's, 110nx110f jets, solenoids only had .093 orifice sizes, ultra rich tune in those days, 34 total, hit it all off the line, went 11.01@122, only a 160hp gain, +(14mph)
    Holley blue pump/reg/guage for N20 fuel only, 6psi. Never tipped a plug, NGK7's...don't need sep pump for a 150 shot.
    Today you would be running a smaller Fuel jet than N20 jet for a clean tune, max gain, timing then mucho important, timing is what kills motors not lean.

    Suspension was exactly the same for NA as for 250 hit, handled it with no probs. Stock springs clamped+snubber.
     
    Last edited: Nov 21, 2019
    • Like Like x 1
    • MiradaMegaCab

      MiradaMegaCab Well-Known Member

      Messages:
      1,095
      Likes Received:
      654
      Joined:
      Feb 5, 2011
      Location:
      Long Island NY
      Local Time:
      12:08 PM
      EF0D6C5C-2B26-4E20-AB71-2CCDF0831010.jpeg
      :steering:
       
      • Like Like x 2
      • j par

        j par Well-hung Member

        Messages:
        23,005
        Likes Received:
        11559
        Joined:
        Jul 2, 2014
        Location:
        Portland Oregon
        Local Time:
        10:08 AM
        Well I finally got the aluminum heads I always wanted and obviously I've been talking about this for coming up on four years..
        Dual quad nitrous! dual quad nitrous!! dual quad nitrous!!!....
        Poor 318 has valves that will fly will come back and think he's got me and poof I'm gone again... I should mail him a framed photo of my tail lights..lol...
         
        • Like Like x 1
        • 6PKRTSE

          6PKRTSE Well-Known Member

          Messages:
          134
          Likes Received:
          118
          Joined:
          Dec 2, 2010
          Location:
          Motor City
          Local Time:
          12:08 PM
          Nothing wrong with dual quads and nitrous. How about dual Dominator's and multiple stage systems just to make sure I make it to work on time.

          20160414_201144.jpg

          IMG9505711.jpg
           
          • Like Like x 5
          • j par

            j par Well-hung Member

            Messages:
            23,005
            Likes Received:
            11559
            Joined:
            Jul 2, 2014
            Location:
            Portland Oregon
            Local Time:
            10:08 AM
            Great idea! I absolutely detest being late for work...
             
          • j par

            j par Well-hung Member

            Messages:
            23,005
            Likes Received:
            11559
            Joined:
            Jul 2, 2014
            Location:
            Portland Oregon
            Local Time:
            10:08 AM
            Just check prices and it looks like $7 a pound so a 10 lb bottle is $70 to fill..
            Probably $30 and race gas at the same time to run it..
            I do have one of those aluminum 2 gallon Moon gas tanks with brackets but I could mount in the back. I still have my horrendously loud fuel pump in the back and a regulator (that I don't use anymore cuz it's too freaking loud) but I think I would just go with another Edelbrock electric fuel pump that shelf regulates between 6 and 6 and 1/2 PSI...
             
          • 6PKRTSE

            6PKRTSE Well-Known Member

            Messages:
            134
            Likes Received:
            118
            Joined:
            Dec 2, 2010
            Location:
            Motor City
            Local Time:
            12:08 PM
            Yes, it gets expensive. I have 4 of my own mother bottles, filling station and plenty of 20 lb. bottles to get by for the weekend (19). Including 2 in the trunk.

            20161104_213725.jpg
             
            • Like Like x 4
            • j par

              j par Well-hung Member

              Messages:
              23,005
              Likes Received:
              11559
              Joined:
              Jul 2, 2014
              Location:
              Portland Oregon
              Local Time:
              10:08 AM
              How many passes do you get out of a 10lb bottle and how much do you use as far as shot size and all that? And size motor? Just trying to get an idea of what I'm getting myself into...
              Thank you..
               
            • oldkimmer

              oldkimmer FABO Gold Member FABO Gold Member

              Messages:
              15,404
              Likes Received:
              4261
              Joined:
              Nov 11, 2006
              Location:
              Kindersley, Saskatchewan,
              Local Time:
              12:08 PM
              Nitros get expensive fast. The faster u go the more u use. 4,5 or 6 passes on an 11 second car. 10lb bottle. Kim
               
              • Like Like x 1
              • j par

                j par Well-hung Member

                Messages:
                23,005
                Likes Received:
                11559
                Joined:
                Jul 2, 2014
                Location:
                Portland Oregon
                Local Time:
                10:08 AM
                I wasn't going to go probably over a hundred and fifty shot... Probably second third and fourth gear not right off the line..
                But I have no idea what I'm talking about really...
                 
              • oldkimmer

                oldkimmer FABO Gold Member FABO Gold Member

                Messages:
                15,404
                Likes Received:
                4261
                Joined:
                Nov 11, 2006
                Location:
                Kindersley, Saskatchewan,
                Local Time:
                12:08 PM
                U will make 3 test runs the in eliminations u may get 2 or 3 runs b4 the pressure gets 2 low. U may also need a bottle heater and a gauge to keep the pressure stabilized. Kim
                 
                • Like Like x 1
                • my68barracuda

                  my68barracuda Well-Known Member

                  Messages:
                  1,243
                  Likes Received:
                  932
                  Joined:
                  Dec 6, 2009
                  Location:
                  Indianapolis IN
                  Local Time:
                  1:08 PM
                  Interesting to remember that Germany applied nitrous to some WW2 fighters
                  to extend their altitude capability.

                  GM-1 - Wikipedia
                   
                  Last edited: Dec 5, 2019
                  • Like Like x 1
                  • flyfish

                    flyfish C8H18+N2O = :-D

                    Messages:
                    1,986
                    Likes Received:
                    556
                    Joined:
                    Apr 16, 2007
                    Location:
                    Indy
                    Local Time:
                    1:08 PM
                    150 shot on a 10lbs bottle, I used to get 3 passes in before it would start to peter out. 15lbs bottle would get me 5 passes before the same. Yes, it makes it expensive to go racing, that is one of the reasons why I stopped using it years ago. My 50$ race would turn into a 120$ race if I went rounds.
                     
                    • Like Like x 1
                    • Cudafever

                      Cudafever Well-Known Member

                      Messages:
                      4,125
                      Likes Received:
                      1440
                      Joined:
                      Sep 27, 2009
                      Local Time:
                      11:08 AM
                      Remember the Christmas Story, and his wanting to get his first B.B. Gun? YOU'LL SHOOT YOUR EYE OUT!!!!!!
                      YOUR GOING TO MELT PISTON INTO YOUR OIL PAN!!!!!!!! :poke::thumbsup:
                       
                      • Disagree Disagree x 2
                      • Like Like x 1
                      • Cope

                        Cope Fusing with fire

                        Messages:
                        4,079
                        Likes Received:
                        4784
                        Joined:
                        Oct 20, 2009
                        Location:
                        San Jose, Ca.
                        Local Time:
                        12:08 PM
                        I know a guy that runs out law street races and he uses an 800 shot.... one bottle= one pass.
                         
                        • Like Like x 1
                        • oldkimmer

                          oldkimmer FABO Gold Member FABO Gold Member

                          Messages:
                          15,404
                          Likes Received:
                          4261
                          Joined:
                          Nov 11, 2006
                          Location:
                          Kindersley, Saskatchewan,
                          Local Time:
                          12:08 PM
                          The 470 that’s in my duster would get 2 runs to a 10 lb bottle on a fogger. Kim
                           
                          • Like Like x 1
                          • Cope

                            Cope Fusing with fire

                            Messages:
                            4,079
                            Likes Received:
                            4784
                            Joined:
                            Oct 20, 2009
                            Location:
                            San Jose, Ca.
                            Local Time:
                            12:08 PM
                            The only issis i see is that after you get your all set up, then i have to do it and i jist sold a N2O kit off my shelf. So now i would have to buy one....
                             
                            • Like Like x 1
                            • Cudafever

                              Cudafever Well-Known Member

                              Messages:
                              4,125
                              Likes Received:
                              1440
                              Joined:
                              Sep 27, 2009
                              Local Time:
                              11:08 AM
                              LOL
                              That's the first RED X i have seen that wasn't Jpars:D
                               
                              • Thanks! Thanks! x 1
                              • Cope

                                Cope Fusing with fire

                                Messages:
                                4,079
                                Likes Received:
                                4784
                                Joined:
                                Oct 20, 2009
                                Location:
                                San Jose, Ca.
                                Local Time:
                                12:08 PM
                                Well someone has to run protection for the supermodel.

                                And i never did fear shooting my eye out.

                                :elmer:
                                 
                                • Like Like x 1
                                • Cudafever

                                  Cudafever Well-Known Member

                                  Messages:
                                  4,125
                                  Likes Received:
                                  1440
                                  Joined:
                                  Sep 27, 2009
                                  Local Time:
                                  11:08 AM
                                  :rofl:
                                   
                                • j par

                                  j par Well-hung Member

                                  Messages:
                                  23,005
                                  Likes Received:
                                  11559
                                  Joined:
                                  Jul 2, 2014
                                  Location:
                                  Portland Oregon
                                  Local Time:
                                  10:08 AM
                                  Well you got a big disagree for me as well..
                                  I have forged pistons and I wouldn't do anything over a hundred fifty shot anyways...
                                  I thank you for looking out for me...
                                  this is the very thing that got me to stop going to the track so much in the first place and to pay $1, 000 to get a setup and then another hundred dollars every time I have to take it to the track.$70 a bottle + $30 + race gas for three passes. Make that at least $250 every time I go to the track and take some passes..
                                  I would love to do a procharger but there goes my dual quads...
                                   
                                • Cudafever

                                  Cudafever Well-Known Member

                                  Messages:
                                  4,125
                                  Likes Received:
                                  1440
                                  Joined:
                                  Sep 27, 2009
                                  Local Time:
                                  11:08 AM
                                  I would have been disappointed if you didn't.:)

                                  Yup that's the one thing that i kinda regret, was going with so much compression. buying that 55 gal drum of racing fuel really hurts.
                                  The next eng will have lower compression or go to alcohol. Hopeful i will have another 15 year to decide.
                                   
                                  • Like Like x 1
                                  • weedburner

                                    weedburner Well-Known Member

                                    Messages:
                                    178
                                    Likes Received:
                                    169
                                    Joined:
                                    Oct 20, 2015
                                    Location:
                                    Wa State
                                    Local Time:
                                    10:08 AM
                                    The engine I've had in my street/strip car for the last several years only cranks around 100psi. It was built for spraying a couple kits on 92 octane pump gas, doesn't take a lot of compression to feed 355ci when the heads flow 340cfm :)

                                    Here's how I see it- I get plenty of seat time @ .20 per mile for fuel, my hi-compression race gas friends not so much seat time at around $1.60/mi. I fill my own bottles, I figure every 40 miles I put on the car I save enough in fuel costs to pay for 10lbs of N2O.

                                    Grant
                                     
                                    • Like Like x 1
                                    1. This site uses cookies to help personalize content, tailor your experience and to keep you logged in if you register.
                                      By continuing to use this site, you are consenting to our use of cookies.