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Thread: 468 bbc lay over

  1. #1
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    468 bbc lay over

    i have a 468 bbc with a rons toilet dart intake and oval port heads and it runs great but when i get on the two step and leave about 60 ft 100 ft it lays over all the way down the 1/8 mile any ideas ???

  2. #2
    Senior Member RACING JUNKIE
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    Sounds like the pump is not putting out at higher rpms, or you have a way too big return pill in the injection.

    JMO

    Zip.

  3. #3
    Senior Member RACING JUNKIE
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    Re: 468 bbc lay over

    Quote Originally Posted by wildchild71
    i have a 468 bbc with a rons toilet dart intake and oval port heads and it runs great but when i get on the two step and leave about 60 ft 100 ft it lays over all the way down the 1/8 mile any ideas ???
    What nozzel/pill & leak down on the barrel valve ?

    What about knocking a sprag out in the converter ?
    David Lanning
    IHRA NHRA 387B

    Fleenor Racing Transmission
    419-280-1406
    Lanning Electric
    Complete Drag Car Wiring
    APD Race Engines
    www.apdracing.com

  4. #4
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    brand new pump the toilet and every thing is brand new from rons 35 nozzles leak down done by rons the egt is perfect no wash down oil is perfect converter is new the tranny was just rebuilt ..bc i can't find were this problem is new case on the tranny new clutchs every thing new ...new car rebuilt the motor after 5 passes and it was new before the 5 passes ...went though every thing ...theres no popping ...the rons set up came from rons i told them every thing i had and what i was running and thats what they sent to me ....every thing in the heads are new and port and polished ..iron heads oval port ...i was only building a 6.0 motor for this car and had this same set up before ...i can't fidger it out i have changed every thing ...only thing i havn't done was put a gas carb on it ....and a differnt msd box ...other than that every thing is new??????

  5. #5
    Senior Member RACING JUNKIE
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    did it come from Rons in AZ or James Monroe a rons dealer ?

    Whats the et and mph it runs ? Do you run a egt ?
    David Lanning
    IHRA NHRA 387B

    Fleenor Racing Transmission
    419-280-1406
    Lanning Electric
    Complete Drag Car Wiring
    APD Race Engines
    www.apdracing.com

  6. #6
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    rons az i beleave ...yes i have an EGT ...it reads fine ..it's like it's not fuel bc every thing is perfect i even borrowed a pump to make sure ...i have no clue why it's laying over you can even feel it in the 2 step
    Wild Child

  7. #7
    Senior Member RACING JUNKIE
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    Ignition or Converter then ..
    whats the mph and et now ?
    David Lanning
    IHRA NHRA 387B

    Fleenor Racing Transmission
    419-280-1406
    Lanning Electric
    Complete Drag Car Wiring
    APD Race Engines
    www.apdracing.com

  8. #8
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    new converter just changed it and it didn't change nothing ...haven't made a full pass bc when it lays over i cost ..1/8 mile 7.00
    Wild Child

  9. #9
    Senior Member RACING JUNKIE
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    How about the pressure relief ball inside the barrel valve is it stuck ?
    David Lanning
    IHRA NHRA 387B

    Fleenor Racing Transmission
    419-280-1406
    Lanning Electric
    Complete Drag Car Wiring
    APD Race Engines
    www.apdracing.com

  10. #10
    Junior Member APPRENTICE
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    thats what rons was asking me ...but the egt is reading fine and i change the valve out of my other toilet on my other car ..if it was stuck it would be to fat and the egt would show ..plus the oil would be shot
    Wild Child


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