1. The Turbo Forums - The discussion board for both hard core and beginner turbocharged vehicle enthusiasts. Covering everything from stock turbocharger cars, seriously fast drag racers, boats, motorcycles, and daily driver modified turbo cars and trucks.
    To start posting in our forums, and comment on articles and blogs please

    IF YOU ARE AN EXISTING MEMBER: You can retrieve your a password for your account here: click here.

bs3 injector opening time for 83lb/hr injectors?

Discussion in 'EFI Tuning Questions and Engine Management' started by LowBoostinT76, Jun 19, 2008.

  1. LowBoostinT76

    Joined:
    Dec 15, 2003
    where should I set this at for the different battery voltages? I searched and found some info for different sized injectors but couldn't find anywhere for 83lb/hr, they are siemens delphi.
    Where can I find this info? I have been searching all over.
    Thanks.....Don? Shane? please help!!!
    here is where it is currently at
    opening time in ms 1.63 1.00 .80 .70 .60 .56 .56 .53
    battery voltage 8.7v 10.4 12.2 13.9 15.6 17.4 19.1 20.9
     
  2. Grnd Effct

    Joined:
    Nov 8, 2004
    I have the same 83 lb/hr injectors. Here are my opening times

    1.30 1.09 1.00 0.90 0.84 0.81 0.80 0.80
    8.7 10.4 12.2 13.9 15.6 17.4 19.2 20.9
     
  3. LowBoostinT76

    Joined:
    Dec 15, 2003
    yeah i figured mine are a little on the low side (a little high ve) I figure you would want to be near 1.0 at normally charged battery voltage 12-12.6volts and probably slightly lower at charging 13.5-14.2volts.
    Thanks for posting your numbers.
    If anyone else is using 83lb/hr injectors let me know what your injector opening time is so I can also use that for reference or maybe someone else will see this post and chime in.
    Thanks again!
     
  4. Toma

    Joined:
    Dec 12, 2003
    Who's 83's? Siemens low impedance?

    Your quicker values are better then for a BS3 box that seems to have very good injector driver control. Hell, you may even go a little less... maybe 20%
     
  5. LowBoostinT76

    Joined:
    Dec 15, 2003
    Yeah they are siemens low impedence 83lb/hr.
    here is how i have them currently set.

    opening time 1.63 1.23 1.00 1.00 .97 .90 .80 .54
    bat voltage 8.7 10.4 12.2 13.9 15.6 17.4 19.1 20.9
     
  6. Drlee50

    Joined:
    Feb 28, 2003
    you can go down to the .6 region with the injector driver in the BS3. Remember, there is opening time, but there is also closing time so you will have much more fuel flow. I run .60 through most of the cells and my VE tables are very reasonable and pretty darn linear. mid to low 20s at idle and 80-90 up top at 20 psi
     
  7. LowBoostinT76

    Joined:
    Dec 15, 2003
    Won't lowering the opening time require me to increase the ve number in my fuel map? or is it the other way around?
     
Loading...
Similar Topics - bs3 injector opening Forum Date
anyone ever have problem with injector drivers with BS3?? EFI Tuning Questions and Engine Management Nov 13, 2010
injector phase angle-bs3 EFI Tuning Questions and Engine Management Jun 28, 2010
BS3 Injector Phase Angle EFI Tuning Questions and Engine Management Jan 3, 2009
Loading...