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    #1

    Engine Problem WOT

    Just recently managed to get the engine started up and running.
    Havn't actually driven the car yet just running it in the drive way.
    Now the problem is that when the car is idling, and I go WOT it doesnt rev straight up, there is a long pause, and sometimes backfires out the intake.
    Timing is set at 17 degrees.
    The engine is a new F22A1, using F20A Soch intake manifold and computer.
    Any ideas guys?
    Last edited by evil_demon_01; 04-01-2007, 09:57 PM.


    Car Safety / General Servicing Checks --------Basic suspension checks

    My 5.7 LS1 Holden Ute

    A "Finished" project car is never finished until its been sold.

    If at first you don't succeed, Try again. Don't give up too easily, persistance pays off in the end.
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    #2
    How does it idle? Check the throttle cable if its sticking. Try setting it back to 15btdc and see how it runs.

    Comment

      #3
      Yep Ill try set the timing to 15 later on this arvo.
      It does have a strange idle, varies each time, so i cleaned out the idle screw this morning, and now it seems fine


      Car Safety / General Servicing Checks --------Basic suspension checks

      My 5.7 LS1 Holden Ute

      A "Finished" project car is never finished until its been sold.

      If at first you don't succeed, Try again. Don't give up too easily, persistance pays off in the end.

      Comment

        #4
        Your running stock ecu on your boosted setup? or is this another car.

        The New-ish Ride
        My old Ride
        Hear my Vtak!!!
        MK3 Member #3
        I piss off people for fun.
        IA 08 Sunburn Victim #1

        Comment

          #5
          Turbo car, but running as N/A - standard injectors, standard ecu and no intercooler piping cause I have to drive it to my new place on thursday


          Car Safety / General Servicing Checks --------Basic suspension checks

          My 5.7 LS1 Holden Ute

          A "Finished" project car is never finished until its been sold.

          If at first you don't succeed, Try again. Don't give up too easily, persistance pays off in the end.

          Comment

            #6
            hmmm...if it was a small carbd engine (lawnmower/snowblower), I'd say valve issue for the backfire from intake (maybe ignition timing), and the delayed throttle response is usually cause by a lean idle. It'll idle good, but hitting the throttle kills the engine or it takes awhile to rev up. But that's a different beast. can't say how much it'll apply to this engine.
            Opal Metallic Green '92 LX 2dr manual, 181k miles, '94 prelude VTEC wheels for summer (steelies with snow tires for winter), Omni-power struts/springs, and other junk

            Comment

              #7
              So I tried changing the timing this morning, made no difference, and had more time to play around with it today.
              No matter what the revs are at when I go WOT it just loses all power and the revs drop, idle is irratic again, and you have to almost pump the throttle lightly to get the revs up.
              Please note-This is while in neutral, havn't driven car yet.


              Car Safety / General Servicing Checks --------Basic suspension checks

              My 5.7 LS1 Holden Ute

              A "Finished" project car is never finished until its been sold.

              If at first you don't succeed, Try again. Don't give up too easily, persistance pays off in the end.

              Comment

                #8
                Originally posted by evil_demon_01
                So I tried changing the timing this morning, made no difference, and had more time to play around with it today.
                No matter what the revs are at when I go WOT it just loses all power and the revs drop, idle is irratic again, and you have to almost pump the throttle lightly to get the revs up.
                Please note-This is while in neutral, havn't driven car yet.
                What else was changed in this setup? I will hunt for a project thread in a sec.

                Comment

                  #9
                  Fixed now, I had put 3.0L of gas in it which must've been enough to make it run but not enough to actually drive it
                  Put 10L in it and now its fine


                  Car Safety / General Servicing Checks --------Basic suspension checks

                  My 5.7 LS1 Holden Ute

                  A "Finished" project car is never finished until its been sold.

                  If at first you don't succeed, Try again. Don't give up too easily, persistance pays off in the end.

                  Comment

                    #10
                    Originally posted by evil_demon_01
                    Fixed now, I had put 3.0L of gas in it which must've been enough to make it run but not enough to actually drive it
                    Put 10L in it and now its fine
                    Nice!!!! It happens to the best of us.

                    Comment

                      #11
                      Lol, Thanks for your help anyway


                      Car Safety / General Servicing Checks --------Basic suspension checks

                      My 5.7 LS1 Holden Ute

                      A "Finished" project car is never finished until its been sold.

                      If at first you don't succeed, Try again. Don't give up too easily, persistance pays off in the end.

                      Comment

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