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Thread: new $EE tuning thing!

  1. #181
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    BTW my blue screens of death in my earlier tests with 4.0 beta 3 were likely due to my serial adapter, a tripplite USA19HS. Later attempts resulted in immediate BSOD so I repaired the driver installation and no more problems.

  2. #182
    Fuel Injected! fbody_Brian's Avatar
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    Changing gears works, manual engagement and disengagement of torque converter does not.
    Wideband looks much better with smoothing, though I appear to have a slight lag, it appears that it changes just after the gauge. Probably not enough to matter though.

    Temp readings appear much more sane. I was seeing a max temp of 145F on my commute to work before the update, now it's showing 170F, which seems more likely with a 160F t-stat. Haven't compared temps to datamaster. I haven't even used datamaster since I started logging with eehack, though I guess I should have done a comparison when the temps seemed off.

    On a side note, when testing the gear selection I accidentally left it in fourth at a stop light, 4th gear start was very sluggish. LOL
    I was shocked that it didn't buck or stall.
    Last edited by fbody_Brian; 12-29-2015 at 05:14 PM.
    1994 LT1/4L60E Formula

  3. #183
    LT1 specialist steveo's Avatar
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    Changing gears works, manual engagement and disengagement of torque converter does not.
    i'll look into it. glad the gear selector works, though.

    Wideband looks much better with smoothing, though I appear to have a slight lag, it appears that it changes just after the gauge. Probably not enough to matter though.
    yeah we had to give up a little bit of response time. how the 'smoothing' really works is averaging the last 8 records or so together. if i made it a weighted average it'd be a bit less 'smooth' and a bit more 'responsive' but i think i'll leave it how it is.

    Temp readings appear much more sane.
    yeah that was a big blunder on my part, mis-reading disassembly. shoulda just trusted the datastream file.

  4. #184
    LT1 specialist steveo's Avatar
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    Quote Originally Posted by sherlock9c1 View Post
    BTW my blue screens of death in my earlier tests with 4.0 beta 3 were likely due to my serial adapter, a tripplite USA19HS. Later attempts resulted in immediate BSOD so I repaired the driver installation and no more problems.
    oh yeah that explains a bit, your reconnecting behavior as well (clicking disconnect/connect resets the serial interface, automatic reconnect leaves it open)

  5. #185
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    That's interesting that the TCC didn't work for you Brian - I could clearly hear a solenoid clicking and unclicking when I tested that last night. What's your application? On the '95s, there's TWO solenoids that work on TCC lock, one controlling on/off and the other controlling the apply rate; I'm wondering if this mode works both of them?

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  8. #188
    LT1 specialist steveo's Avatar
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    im getting sick of saying new beta

    but here

    NEW BETA

    http://fbodytech.com/download/223/

    might fix TCC lockup, please try my new cylinder drop test, also the installer is better, should launch on windows 10, also installs visual c++ libraries, no dependencies whatsoever afaik.

    please uninstall all old versions before installing this one (or delete c:\program files\eehack), just so i can make sure it works as-is without any stale libraries in place

  9. #189
    Fuel Injected! fbody_Brian's Avatar
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    Quote Originally Posted by sherlock9c1 View Post
    That's interesting that the TCC didn't work for you Brian - I could clearly hear a solenoid clicking and unclicking when I tested that last night. What's your application? On the '95s, there's TWO solenoids that work on TCC lock, one controlling on/off and the other controlling the apply rate; I'm wondering if this mode works both of them?
    I have a 95 trans in a 94 car. The trans has two solenoids, one's a pwm lockup solenoid i believe. that valve is staked open and the solenoid is not hooked up, since there's no wire from my pcm

    Quote Originally Posted by steveo View Post
    i finally got my sockets, so im going to heat gun this t-side chip off at work today and get my test ecm working again.
    I need to do the same, have the sockets and air solder gun, but no time to get it done. it's a little scary to do it to a working pcm though, may wait til I brick it.
    1994 LT1/4L60E Formula

  10. #190
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    I've flashed about 10 times using v4.00 with no issues! Must faster using the bin compare action. Loving this thing and I know there are many people here that appreciate the hard work. I just wish I had some wide bands so I wouldn't be tuning blind so to speak.

  11. #191
    LT1 specialist steveo's Avatar
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    Loving this thing and I know there are many people here that appreciate the hard work. I just wish I had some wide bands so I wouldn't be tuning blind so to speak.
    thanks, this has totally spiraled out of control from a simple mode4 controller to an entire lt1 aldl suite.. im glad someone other than me finds it useful

    i tuned mine in speed density across the board the board first with narrowbands, then i switched to open loop and polished it up by feel. when i finally got widebands, i found i was only off by about 2-3% in some areas (which is even within the margin of error for a wideband sometimes)

    maf narrowband tuning is stupid easy, since you're tuning two dimensionally. you just have to nail your trims per airflow, and your load (MAP) axis will pretty much line itself up, at least close enough to get you going. only downside is you can't push WOT AFR close to the limit.

    you can tune very well with narrowbands if closed loop is working properly, especially with my analyzer, simply disable power enrichment, enrichen high end airflow by like 5% for safety, and just start logging. the analyzer will spit out a new maf table for you. that'll get you close.

    problem is, aluminum headed LT1s want to run around 13.1-13.3 AFR for max power, but lets say you're off by 5% in your high map airflow, you're ending up with a 14.0:1 or worse, which starts doing nasty things at really high load and RPM.

    so i'd target like 12.5:1 in power enrichment and hope for the best, you might leave a bit of horsepower on the table. with a wideband you can more safely push it into the low 13s.

    my power enrichment analyzer is rigged for narrowbands too, it wont tell you AFR, but if you exceed 14.5:1 in power enrichment it'll let you'll know...

  12. #192
    LT1 specialist steveo's Avatar
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    i would also like to take the time and thank everyone that's donated me anywhere between 2 bucks and 50 bucks and/or random parts to the fbodytech/eehack cause in the last couple months,

    fbodytech's 'paypal beer n parts fund' assets now top out just over a hundred bucks sitting in my paypal account, a spare ecm, a nice dual wideband velcro'd to my dash, and all sorts of random sensors and junk in my closet.

    just goes to show, the lt1 community definitely takes care of itself in the end if someone puts in the time

    i'd like to pay it forward and throw a few bucks towards supporting this forum's hosting bills, since eehack/eex wouldn't be possible without it, does anyone know who pays the bills for this forum nowadays?

  13. #193
    Fuel Injected! fbody_Brian's Avatar
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    manual torque converter engagement works. TCC indicator is backwards when selected manually, but correct when on auto.
    1994 LT1/4L60E Formula

  14. #194
    LT1 specialist steveo's Avatar
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    TCC indicator is backwards when selected manually, but correct when on auto.
    that shoulda been fixed in the latest beta..? maybe i reversed my already accidently reversed reversal or whatever. programming is hard.

  15. #195
    Fuel Injected! fbody_Brian's Avatar
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    see you're taking advantage of the beer money...

    lmao j/k


    latest beta 4 tested this evening
    Last edited by fbody_Brian; 12-30-2015 at 04:42 AM.
    1994 LT1/4L60E Formula

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