Results 1 to 7 of 7

Thread: gen7 question

  1. #1
    Join Date
    Jan 2006
    Location
    brick,new jersey
    Posts
    28

    gen7 question

    to start off motor is a chevy 383...i have a gen7 steup(calmap v4) and i am trying to tune the ve table...my question is when i run a datalog and i go back to review it,there are some points on the log i can't seem to tune..for example, when vacum is say 9psi i can't seem to take any more fuel out of the ve table...i already have it as low as it will go(.100)and its still real rich..the ve table only goes as low as 13.44..i tried to adjust it to read lower but calmap tells me that the value is out of range and it also says i can't scale the first value in the map axis...is there another table that can be adjusted to solve the problem??i would appreciate any feedback...
    thanks,mike

    ps..injectors are 30lb/hr



  2. #2
    Join Date
    Jan 2006
    Location
    Milwaukee WI.
    Posts
    345
    I assume you have a wideband. You need to set up your commanded afr table first. Then tune the ve table. The computer is automatically adding more or less fuel when in closed loop. Start with 13.5-14.7 accross the board, in the last 3 columns of the afr table, taper it down to about 12:1 and start from there. Hope this gets you started!

  3. #3
    Join Date
    Jan 2006
    Location
    brick,new jersey
    Posts
    28
    thats how i did it...i set up the a:f table just like you suggested..and yes i do have a wideband...but like i said, its way rich beyond where i can adjust it on the ve table...any other suggestions???thanks for your help..

    mike

  4. #4
    Join Date
    Aug 2001
    Location
    Wilton, CA. (Sacramento)
    Posts
    3,001
    Country Flag: United States
    Do you have the injector size, etc. in config correctly? What fuel pressure are you running?

    Jody

  5. #5
    Join Date
    Jan 2006
    Location
    brick,new jersey
    Posts
    28
    yeah all of that is correct...fuel pressure is set at 42lbs...

    mike

  6. #6
    Join Date
    Jan 2006
    Location
    Milwaukee WI.
    Posts
    345
    What is you afr at idle. Those are tiny injectors, you should not have a problem. In closed loop at idle, how many percent of fuel is it adding or subtracting?
    Twin Turbo Ls1 '71 Chevelle
    93 octane 1000 hp street car!!

  7. #7
    Join Date
    Jan 2006
    Location
    brick,new jersey
    Posts
    28
    afr at idle is 15.1.....its only correcting around 2-4%, which is where i want it....anyway i think i figured out my problem....thanks for all of the help guys....