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03-13-2017, 05:37 PM | #51 | |
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03-13-2017, 06:24 PM | #52 | |
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1)Calculated Load - Is there a correlation between this and whp and wtq? Or is it how hard the engine is working, but not necessarily how much power it's putting out. I've noticed that OTS maps seem to get to much higher calculated loads over E tunes or Pro Tunes. Have I just maybe been seeing outlier logs or what am I misunderstanding? 2)There were two very brief instances of FBKL. They occurred at loads of about 2.5, is that concerning given they were only about 2/10s of a second each time? I wouldn't think so but I wasn't sure. 3)The boost control showed an initial spike that reached 3.5lbs over target on the first hit and spiked 2lbs over on the second. Is this just bad boost control? |
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03-13-2017, 07:46 PM | #53 |
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What gas was that log, I assume 91 with the timing...
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03-13-2017, 08:41 PM | #54 | |
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03-13-2017, 08:55 PM | #55 |
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Much obliged J!
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03-13-2017, 10:07 PM | #56 |
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91 octane and it is winter gas.
when i took this log, i hadn't been to the RPM at WOT where i saw the FKL, not entirely sure if this is something that adjusts over time or needs to be looked at. i don't recall feeling any timing being pulled during those pulls the car has been running great. i will take more logs during summer. |
03-14-2017, 12:17 AM | #57 | |
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If you do another try adding command fueling and boost target like simplej suggested. |
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03-14-2017, 08:13 AM | #58 | |
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FKL is bad. Basically it means that the ecu has seen knock in a certain rev and load range repeatedly so it is protecting itself in a predictive way. -2.81 is not bad- anything over that is cause for concern. However, if you're getting a -2.81 FKL consistently that could be indicative of a problem |
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03-14-2017, 08:17 AM | #59 | |
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His throttle position is 80% but the throttle plate is actually 100% open. That's a wot log |
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03-14-2017, 09:24 AM | #60 | ||
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if i have FKL but no actual feedback knock, is it still a concern though? i've only been to that RPM range 2-3 times since going stage 2 (i installed it in november) so maybe i just haven't given it enough trials to "learn". ideally i'd like it to stay at 0 though. also maybe important? this whole log was to test air leaks after installing an intercooler and charge pipe. needless to say i didn't tune for these parts, not yet at least. i took note on the FKL but plenty of people posting WOT logs on OTS maps have FKL on these motors. thanks for taking a look btw, appreciate it. |
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03-14-2017, 09:30 AM | #61 | |
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Did it correlate to full requested torque? As I mentioned in a different thread the pedal controls more than just the throttle plate, this isn't a small block chevy after all. There are other parameters it controls, timing, AVCS, boost control. I know my tuner often uses the last portion just for boost control. Its hard to know for sure what his did. |
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03-14-2017, 01:25 PM | #62 |
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Does the FA20 clean up timing/knock wise if you add 1/4 tank max of E85?
Just thinking of the 91 octane folks, hippy gas is hippy gas. |
03-14-2017, 04:34 PM | #63 | |
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As for a stock engine calibration, I wouldn't recommend it. Trading a proper AFR for a little extra octane doesn't exactly strike me as a good compromise. Now if you were to get a flex fuel map.... then it's game on. |
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03-14-2017, 05:28 PM | #64 | ||
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2 or 3 times since November? Christ I hit that in third merging on my way to work every damn day. You don't need to tune for those parts per se. Yes you willl see some FKl, if you don't that is a problem, even on a protune. Think of it like this FBK is knock your engine heard. FKL is knock your engine predicted based on conditions where it heard knock previously, and will keep FKL for as long as those conditions are experienced and there is a knock, if no knock it will learn it away in increments of .35. DAM drop is your ecu getting repeated FKL and FBK and it says okay I'm just going to turn down the entire timing table across the board until i get it under control. If you get this every time you go WOT its probably not good. Once in a while totally fine. above -4.22 and thats not good either. Quote:
Yes, a few gallons, 1 or 2 max will clean things up even on the stock tune. No mods or flex fuel needed for these concentrations to boost octane. |
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03-14-2017, 10:06 PM | #65 |
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http://datazap.me/u/glarryhooddit/st...og=0&data=7-20
Was doing some logging to check out the GS TMIC efficiency (holy **** btw), figured I might as well post it here too. 2nd-3rd gear pull. 91 Octane, 5500' Elevation |
03-14-2017, 10:30 PM | #66 |
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03-15-2017, 10:00 AM | #67 |
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Hell yea that is one awesome looking log. I see he's running you in full time CL as well. Sweet deal
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03-15-2017, 12:03 PM | #68 |
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What is the advantage of keeping it in closed loop?
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03-15-2017, 12:25 PM | #69 |
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Also whos the tuner on that Grimmspeed IC log? Looks fairly aggressive but clean.
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03-15-2017, 08:32 PM | #70 | |||
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Gonna have to disagree with you there, personally. AFR in the 10s to mid 10s at higher rpm is pretty conservative, the timing scheme is a bit off because I didn't WOT until past 3000rpms. This log is an example of a fairly aggressive tune/timing scheme. AFR is conservative (not as much as the E Tune) but that's about it. This was the only log I could take on that tune without knock. Almost double the timing throughout the log. This tune has lower boost, which was probably the only thing keeping it from exploding, a lot of the power was made through timing which is dangerous on these engines. http://datazap.me/u/glarryhooddit/3r...-pull-pro-tune |
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03-15-2017, 09:33 PM | #71 | |
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Thanks for sharing the PhatRon log it is super clean, I guess I'm just unfamiliar with the timing maps on these engines. |
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03-16-2017, 10:19 AM | #72 | |
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you're right, ignition is just load/rpm shouldn't have said that one Interestingly requested torque values aren't restricted to the max listed in that table either. Requested torque can call for max throttle plate position but not max boost |
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03-16-2017, 10:35 AM | #73 | |
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03-16-2017, 01:13 PM | #74 |
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here is my final etune on 91 from Ron aka phatbotti. this is it before he finishes it up on the dyno next friday and then he will tune me for Flex Fuel. can't wait!
http://datazap.me/u/gsechen/log-1489...og=0&data=9-24 |
03-16-2017, 04:08 PM | #75 |
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goto my build thread if you want to see the mods: https://forums.nasioc.com/forums/sho....php?t=2802811
3rd gear...26-27 psi according to my non-Cobb AP boost gauges. http://datazap.me/u/ustemuf/e70-efr7064 my car blew a head gasket or more just recently though. went to tune for flex fuel. my very first tank of 91 octane, one third gear pull with only 16psi and my engine went a couple minutes later. still need to tear down to truly diagnose. the log was perfectly normal looking as far as i can tell.... musta just been fatigue. 22k on the built motor. here is the 91 octane 3rd gear pull... http://datazap.me/u/ustemuf/91-blew-me Last edited by immortal; 03-16-2017 at 04:14 PM. |
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