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!tuning For Nitrous!

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    #61
    Originally posted by rexload View Post
    So to tune for nitrous...
    Say you set nitrous to activate at 5,500rpm (in vtec - high cam)... and you want DRY 100shot...
    What would be the best way to start tuning your fuel? Do you start with smaller jets at first(can they be replaced on the fly?)? I mean how else can you estimate how much fuel you will need for that 100shot when you hit it for the first time to get a datalog?
    On our small motors, from what I've read and have been told, you can run a 100 dry shot, but a wet kit would be ideal.

    It may be best to buy a whole kit, and let the control module inside the kit regulate everything. If not, you would probably have to tune your ECU when on spray to add "x" amount of fuel to offset the high amount of oxygen in the combustion chamber to get a balanced AFR. To figure out how much fuel, I would say do a test run on a 75 shot, and log the data. Then figure out how much fuel is needed to balance everything. Once balanced, move onto a 100 shot.
    The Lord watches over me!

    "...they did the bowties, I did the ascots, as much as I have, I'm still reppin' the have nots..."

    - So Raspy

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      #62
      Yep, I am talking about running a dry shot and tuning the ECU for additional fuel when nitrous is activated. I am assuming it isn't that hard to switch between different shots - starting with 50, then 75, then 100 to tune.

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        #63
        Can this all be done with a f22 ecu? Or do I have to have a p72

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          #64
          can't chip an f22 ecu.


          it doesn't have to be a P72 though... obd 1 civic ecus are fully tunable

          you can run a WET shot on a stock ECU and still tune the fuel properly. it won't be as precise as a chipped ecu... and you will have no control over your timing
          other than moving the distributor.
          Last edited by rexload; 06-25-2011, 07:17 PM.

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            #65
            why?

            A chipped ecu running crome is pretty much the same price as a vafc, so I don't know why anyone would go that rout.

            201 Whp H22a with bolt ons, see the progress from stock f22a to now HERE

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              #66
              Yea. Well ill need the tune one I finish my built head. It'll be a built multi port throttle activated 125 shot with meth injection. 75 on street. 125 on strip.

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                #67
                Finally realize the power of f22 im proud of you!!!!
                i feel good cause i beat a 350z~

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                  #68
                  being paid with nitrous oxide kit..

                  hey guys, my manager is offering me a project for he's eg 4door.he wants a mini-me swap for he's d15 motor and he'll be paying me with a nitrous oxide kit..

                  its a wet kit that he bought from a friend for $50!..it still have the solenoids,steel braided hoses,and bottle..

                  2 things missing-(1) switch and (2)(im not sure what its called,but i know its suppose to go on top of the fuel filter)..is there a place where i could buy one?

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                    #69
                    Originally posted by stunin92_accord View Post
                    hey guys, my manager is offering me a project for he's eg 4door.he wants a mini-me swap for he's d15 motor and he'll be paying me with a nitrous oxide kit..

                    its a wet kit that he bought from a friend for $50!..it still have the solenoids,steel braided hoses,and bottle..

                    2 things missing-(1) switch and (2)(im not sure what its called,but i know its suppose to go on top of the fuel filter)..is there a place where i could buy one?
                    make sure the bottle is less than 5 years old, the date of manufacture should be stamped into it near the neck. If not, you will need a new bottle or have that one ,recertified at a scuba shop, gas bottling company or possibly a fire station.
                    I don't know what piece you mean on the fuel filter, my wet kit doesn't have anything attached to the fuel filter. You can buy any pieces you need from any nitrous manufacturer or Jegs or ebay or...

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                      #70
                      Originally posted by visualpoet View Post
                      make sure the bottle is less than 5 years old, the date of manufacture should be stamped into it near the neck. If not, you will need a new bottle or have that one ,recertified at a scuba shop, gas bottling company or possibly a fire station.
                      I don't know what piece you mean on the fuel filter, my wet kit doesn't have anything attached to the fuel filter. You can buy any pieces you need from any nitrous manufacturer or Jegs or ebay or...

                      my friend have a nitrous set up on hes civic and he does have that black piece that sits on top of the fuel filter.he said,the ground wires from the solenoid is supposed to connect there. idk,maybe this is a dry kit..

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                        #71
                        black piece on top of the fuel filter.nitrous set up

                        sori i took awhile to find it but its called a PRESSURE DEACTIVATION SWITCH..its screwed on top of the fuel filter and wires from the solenoids are to be connected on the pressure deactivation switch.

                        heres a description about this part,from EDELBROCK: This Pressure Deactivation Switch is adjustable from 3 to 25 psi to disengage the nitrous system once the turbo has achieved the set boost pressure level. Factory pre-set at 7 psi, this switch is ideal for hard-core racing applications to prevent wheel spin, over-boost and engine damage.

                        this is that one part that is missing on my set-up.

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