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Thread: Help with tune adjustments

  1. #51
    R.I.P Shawn, 1956-2011 WeathermanShawn's Avatar
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    Quote Originally Posted by SuperChevy View Post
    This is where the newbie would be applied.......I thought analog was good enough to perform a calc.ve- do I need to make the WB feed the pcm in order to be usefull?
    No Analog is fine. Its just with the V2 Serial is a breeze. Your Pid list has both Serial and Analog selected...

    Its the Open-Loop that is the problem. If your are doing CALC.VET you need to be in closed-loop. Perhaps your WB is off because you have are open-loop with both your MAF and VE Table enabled. You can't do that.
    2002 Black Camaro Z-28 M6 Hardtop 11.0:1CR 425HP/410TQ SAE (400TQ@3500RPM)
    200cc Heads, 228/232 110+2 Cam, 1 3/4" LT's w/catts, GMMG, Koni Shocks, Hotchkis Springs, 35/21 Sways, 17" ZR1's, 3.90 Gears Roadrunner PCM LM-2 Serial Wideband
    EFILive Closed-Loop MAF/SD Hybrid Tune..


  2. #52
    Junior Member SuperChevy's Avatar
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    I will change up to closed loop and see where that takes me.......I try to only change a few items at a time but I think starting from last best run (then backing up a few tunes- which is a guess) is leaving some unecessary open ends....again- Newbie
    Thanks
    G

  3. #53
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    Weathermanshawn, Just an fyi. Maybe you can skim through this thread quickly if you have not read it already. This tune is setup differently than you might be thinking. It confused me for a while.
    Last edited by slows10; June 12th, 2011 at 10:54 PM. Reason: spelling
    1997 S10, 06 trailblazer SS LS2 swap, 4L70E trans, 76mm turbo. Factory ZQ8 suspension. 3.08, G80 w/a zexel. With a 0411 swap.

  4. #54
    R.I.P Shawn, 1956-2011 WeathermanShawn's Avatar
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    Quote Originally Posted by slows10 View Post
    Weathermanshawn, Just an fyi. Maybe you can skim through this thread quickly if you have not read it already. This tune is setup differently than you might be thinking. It confused me for a while.
    Hi, slows10.. I agree it is pretty confusing...

    It really depends on what type of tune the OP really wants. Looks like he might have done some 'mixing and matching' of tune types that is adding to the problem.

    SChevy,
    if you are trying to do CALC.VET we need to do a few things differently. If your doing something else you need to follow their advice. Maybe you can summarize again for us what type of Tune you are going after..

    Thanks..
    2002 Black Camaro Z-28 M6 Hardtop 11.0:1CR 425HP/410TQ SAE (400TQ@3500RPM)
    200cc Heads, 228/232 110+2 Cam, 1 3/4" LT's w/catts, GMMG, Koni Shocks, Hotchkis Springs, 35/21 Sways, 17" ZR1's, 3.90 Gears Roadrunner PCM LM-2 Serial Wideband
    EFILive Closed-Loop MAF/SD Hybrid Tune..


  5. #55
    Junior Member SuperChevy's Avatar
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    At this point, one that runs, with out blowing up. The truck is used for towing a toy hauler and off roading at Glamis/River so it is dual purpose and does a lot of idling in traffic and not as much "racing". I am thinking that if I can get it to run correctly, closed loop would be the best set up. As stated in earlier post the truck has not ran right since I installed the new 411 computer so I am merely trying to get in the "zip code" as one of the books puts it- then I will go from there with working on peak performance.

  6. #56
    Joe (Moderator) joecar's Avatar
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    B3616 is too restrictive for the B3647 you're running; and B3618 is not sufficiently rich.

    set B3616 to 60% below 3600 rpm and to 35% from 3600 and up.
    set B3618 to at least 1.17 and richer if you're running boost.
    set B3647 last 3 columns to same as B3618.

  7. #57
    Joe (Moderator) joecar's Avatar
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    Your B3801 and B4205 don't agree with each other... set B4205 to allow closed loop.

    Then set B0120 to zero, and follow the Calc.VET Tutorial.

  8. #58
    Junior Member SuperChevy's Avatar
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    Joecar,
    Thank you for the advice- the truck runs much closer stoic than it did over the weekend. I have attached a short log as unfortunately a longer log came out corrupted and I am out of time tonight for tooling on the truck (5 year old graduated K today). I will try to perform the calc ve table later this week but I am at least in the zip code now.
    Thanks again
    G
    Log_0003.efi
    Super Chevy-Calc VE CL-Richened up_0002.tun

  9. #59
    R.I.P Shawn, 1956-2011 WeathermanShawn's Avatar
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    SuperChevy, there are still some outstanding issues here...

    First you are not using the correct Pids for CALC.VET. You must use the Pids found in this thread: http://forum.efilive.com/showthread....tire-VE-Table.There is also a Tutorial found on the bottom of that page that goes into greater detail about Pid selection. etc. I don't know where you are getting your current selection, but its wrong.

    Second, with the 2 Bar MAP, you will never be able to get your MAF and VE Table to match. Thats because your MAF flow is way to low for your VE Values. If you look at the attached screenshot, the MAF flow is incredibly low for the MAP. You have a huge difference between CYLAIR.DMA and DYNCYLAIR.DMA.

    I think we need to re-look at what method of tuning you are doing. The CALC.VET formula will work for MAF flows up to 512 g/s. That equates to a VE Value of ~ 134%.

    Perhaps a Closed-Loop SD Tune would be more appropriate, or something more tailored to your COS...
    Last edited by WeathermanShawn; June 14th, 2011 at 05:44 AM.
    2002 Black Camaro Z-28 M6 Hardtop 11.0:1CR 425HP/410TQ SAE (400TQ@3500RPM)
    200cc Heads, 228/232 110+2 Cam, 1 3/4" LT's w/catts, GMMG, Koni Shocks, Hotchkis Springs, 35/21 Sways, 17" ZR1's, 3.90 Gears Roadrunner PCM LM-2 Serial Wideband
    EFILive Closed-Loop MAF/SD Hybrid Tune..


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