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  1. Thread: new ecm?

    by backchannel
    Replies
    1
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    1,162

    those that know don't respond but no...

    those that know don't respond but no issue......found info elsewhere
  2. Thread: new ecm?

    by backchannel
    Replies
    1
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    1,162

    new ecm?

    What is req'd to update 2008 Vette to 2010 ecm? 2008 ecm is pooched and would rather update than replace with same.
    :cheers:
  3. Numbers less than 1 are richer because longer...

    Numbers less than 1 are richer because longer pulse widths are commanded to make up for the lower flow rate the ecm computes the injectors at.
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    I posted before realizing the op was using wet...

    I posted before realizing the op was using wet system. :doh:
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    For extra fuel with nos when iat resistor is...

    For extra fuel with nos when iat resistor is used, set inj flow rate vs iat. I used .86 at 50C> [ used a resistor that read 60 C in the scanner]
    This is for a dry setup
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    Ha, never considered that.

    Ha, never considered that.
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    Try putting rpm cutoff to 2000 in all gears -...

    Try putting rpm cutoff to 2000 in all gears - worked for me. Loaded that tune in their parking lot.
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    18,611

    whose car is that ?? :D

    whose car is that ?? :D
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    84,900

    how is he not seizing the rotors?

    how is he not seizing the rotors?
  10. Replies
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    50,371

    aha! :cheers:

    aha! :cheers:
  11. Replies
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    50,371

    I use commanded lambda and lambda error in the...

    I use commanded lambda and lambda error in the table and histogram. What is the advantage of User defined vs listed pid other than a one time shorter equation entered? :confused:
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    : (([AUX.20122]-[PID.68])/[PID.68])*100 ...

    :

    (([AUX.20122]-[PID.68])/[PID.68])*100 ..........maybe
    or ((AUX.20122]-1/[PID.68])/1/[PID.68])*100
    post if this doesn't work
    :cheers:
  13. Replies
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    5,459

    nice low octane table

    nice low octane table
  14. Replies
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    5,459

    12* @ 2400 rpm ramping up to 18* @ 6000 rpm...

    12* @ 2400 rpm ramping up to 18* @ 6000 rpm should be close enough to start tuning from.
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    Wrong curve for a pd. Reverse it - as in 12* low...

    Wrong curve for a pd. Reverse it - as in 12* low rpm 18* high
    :cheers:
  16. Thread: configs

    by backchannel
    Replies
    0
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    948

    configs

    removed
  17. Replies
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    6,162

    oops - guess I misread :cheers:

    oops - guess I misread
    :cheers:
  18. Replies
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    My comment was to show that the afx just reads...

    My comment was to show that the afx just reads lambda [at stoich or elsewhere] and then converts the display to afr.
    You haven't explained how you are testing to show this is not the case.
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    Are you sure? I have several AFX's and no matter...

    Are you sure? I have several AFX's and no matter what fuel, they show around 14.5 in closed loop.
  20. I ran a similar cam and had alot more midrange...

    I ran a similar cam and had alot more midrange timing.
  21. That may cause rotor seizure!

    That may cause rotor seizure!
  22. Is it possible to upgrade to a newer style?

    Is it possible to upgrade to a newer style?
  23. Replies
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    Posting came across poorly from my long...

    Posting came across poorly from my long frustration of misinformation on this topic.
    The site I posted has some good basic info with a qualifying formula.
    I don't place much on anecdotal info but...
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    Air implosion causing pin holes in liners has...

    Air implosion causing pin holes in liners has several cavitation causes[vibration, coolant properties, sonic waves] but none are identified as thermostat removal and water speed increase.
    Heating...
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    There is good info at this site:...

    There is good info at this site: www.arrowheadradiator.com
    Insults were not intended, just frustration at no search for more info before responding.
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