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  1. #51
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    thanks for the response.

    I have been runnign the jb4 happily for about a year, but recently started going to the track and every session i get misfires on multiple cylinders. I have swapped out all plugs/coils and still under pressure the misfires keep coming back, but only at the track not on the street. interestingly temps are a little over mid way so thats not the issue.

    I was thinking the cobb may fix the misfires but i would still like to keep the jb4 for meth.

  2. #52
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    What codes do you get? You shouldn't have swapped the coils out just like that, waste of money. They either work or not and will consistently misfire if bad.
    Click here to enlarge

  3. #53
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    I got all the misfire codes. the only ones i recall though were 29ce and 29cf for cylinders 2 and 3, but i got the special 'misfire on multiple cylinders' as well and that gave me a little laugh Click here to enlarge

    As I said these were all on the track only, normal driving all is fine. I swapped the coils out and it got a lot better for a little while but now it is back Click here to enlarge

    So I got to thinking it might be the jb4 and i'd give the corn cobb a go, but keep the jb4 stacked for meth.

  4. #54
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    If you have fueling problems, just use our Cobb backend map. Then the JB4 continues to operate as normal only without the fuel control burdens.
    Burger Motorsports
    Home of the Worlds fastest N20s, N54s, N55s, N63s, S55s, and S63s!

    It is the sole responsibility of the purchaser and installer of any BMS part to employ the correct installation techniques required to ensure the proper operation of BMS parts, and BMS disclaims any and all liability for any part failure due to improper installation or use. It is the sole responsibility of the customer to verify that the use of their vehicle and items purchased comply with federal, state and local regulations. BMS claims no legal federal, state or local certification concerning pollution controlled motor vehicles or mandated emissions requirements. BMS products labeled for use only in competition racing vehicles may only be used on competition racing vehicles operated exclusively on a closed course in conjunction with a sanctioned racing event, in accordance with all federal and state laws, and may never be operated on public roads/highways. Please see http://www.burgertuning.com/emissions_info.html for more information on legal requirements related to use of BMS parts.

  5. #55
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    terry many thanks, can you point me to the map location?

  6. #56
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    This info is all obsolete now. Someone delete this thread. I'll make another on how to use the JB4 w/ our backend flash later.
    Burger Motorsports
    Home of the Worlds fastest N20s, N54s, N55s, N63s, S55s, and S63s!

    It is the sole responsibility of the purchaser and installer of any BMS part to employ the correct installation techniques required to ensure the proper operation of BMS parts, and BMS disclaims any and all liability for any part failure due to improper installation or use. It is the sole responsibility of the customer to verify that the use of their vehicle and items purchased comply with federal, state and local regulations. BMS claims no legal federal, state or local certification concerning pollution controlled motor vehicles or mandated emissions requirements. BMS products labeled for use only in competition racing vehicles may only be used on competition racing vehicles operated exclusively on a closed course in conjunction with a sanctioned racing event, in accordance with all federal and state laws, and may never be operated on public roads/highways. Please see http://www.burgertuning.com/emissions_info.html for more information on legal requirements related to use of BMS parts.

  7. #57
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    Click here to enlarge Originally Posted by Terry@BMS Click here to enlarge
    This info is all obsolete now. Someone delete this thread. I'll make another on how to use the JB4 w/ our backend flash later.
    I'll unstick it, no need to delete.

  8. #58
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    Im doing a protune on one of these combos tomorrow.

  9. #59
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    To those who PM'd it Came out fine, new WR Click here to enlarge Customer will post soon.

  10. #60
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    world record dynos need to be acompanied with a TRAP SPEED !!!!! or a 60-130!!!! lmao...


    but id love to see the graphs anyway

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