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Old 05-23-2016, 11:03 PM   #1233
HLHachiRoku
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So i finally got fed up with the crap 91 here in AZ, switched to E85(smell is awesome! lol), found out we have more stations specially where I live now.

http://www.datazap.me/u/hlhachiroku/...&zoom=968-1044

WOT run so far. Running a little rich still or is that within acceptable range? Looks really smooth vs my 91 maps I think atleast. The driving around, its up and down ALOT lol.

Is there a way to have it want less commanded afr? I keep seeing 50.00 for the ignition advance some times at cruise on the freeway/in town cruising, that normal on the E85? lol @steve99

Thanks for the input.
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Old 05-24-2016, 02:20 AM   #1234
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Originally Posted by steve99 View Post
at idle ecu is in closed loop.
ot appears ltft is disabled in open loop as on wot runs ltft is zero, or you hav incredibly good maf scaling or the log was taken soon after flashing.
however running in mid to low 11 seems very rich, as you have not logged commanded afr its hard to tell also you may have reached the limit of o2 sensor reading unless o2 has been re scaled
I have O2 rescaled to read as low as 11.25, my maf scaling was done with vgi's tool, but the log was taken about 10 minutes after flashing the car... but again, this was a tune done on a dyno that gave me the most HP... what Im still baffled is why it wont run as it did before my transmission was replaced.
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Old 05-24-2016, 04:55 AM   #1235
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I'm still learning things so I apologize in advance.

I'm wondering if the 93 gas I'm using is not very good. I was on the OFT stage 1 93 tune for a couple days and my advanced multiplier dropped down to 0.79. I've seen some FLKC and Kock Correction before but this is the first time I saw the multiplier drop.
Here are the 2 logs when it dropped. Unfortunately the first log ran out when it started dropping so you're missing some data from when it goes from 0.9 to 0.79. Also I think I logged everything that is relevant.
http://www.datazap.me/u/randomfool/5...zoom=8118-9940
http://www.datazap.me/u/randomfool/6...4-11-12&solo=5

And just because I was curious I flashed back to the stock tune. I never did a log on it and wanted to see if it knocked at all on that. The multiplier eventually back up to 1 but then drops to 0.9 at one point. Here is that log.
http://www.datazap.me/u/randomfool/s...4-11-12&solo=5

One thing to note is first 2 logs were done during the day and the stock log was at night so intake temps different by a good amount. Also my car is stock except a drop-in filter and catback exhaust.

My question for someone more knowledgeable than me is should the multiplier drop at all on the stock tune if you are using 93? Could the knock on the stage 1 tune just be from higher intake temps? Should I not not worry about that much knock on the stage 1 tune? What about stock?

And last I know I could modify the stage 1 tune to pull timing in that RPM/load range but I plan on going on the E85 tune when my tank is empty. I'm just trying to learn more and incase I use 93 in the winter if I should go somewhere else.

Thanks =)
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Old 05-24-2016, 09:46 PM   #1236
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Originally Posted by HLHachiRoku View Post
So i finally got fed up with the crap 91 here in AZ, switched to E85(smell is awesome! lol), found out we have more stations specially where I live now.

http://www.datazap.me/u/hlhachiroku/...&zoom=968-1044

WOT run so far. Running a little rich still or is that within acceptable range? Looks really smooth vs my 91 maps I think atleast. The driving around, its up and down ALOT lol.

Is there a way to have it want less commanded afr? I keep seeing 50.00 for the ignition advance some times at cruise on the freeway/in town cruising, that normal on the E85? lol @steve99

Thanks for the input.
yeah looks fine as you say little on the rick side you could just adjust the open loop maf scaling a bit to get commanded afr and afr closer ie maf v over 3.2 v

yes when you off throttle you will se high ignition advance values have a look at the base timing b table and the knock correct max a add those two togeather for the loiad\rpm your at for total ignition advance.
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Old 05-25-2016, 12:16 AM   #1237
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Originally Posted by Randomfool View Post
I'm still learning things so I apologize in advance.

I'm wondering if the 93 gas I'm using is not very good. I was on the OFT stage 1 93 tune for a couple days and my advanced multiplier dropped down to 0.79. I've seen some FLKC and Kock Correction before but this is the first time I saw the multiplier drop.
Here are the 2 logs when it dropped. Unfortunately the first log ran out when it started dropping so you're missing some data from when it goes from 0.9 to 0.79. Also I think I logged everything that is relevant.
http://www.datazap.me/u/randomfool/5...zoom=8118-9940
http://www.datazap.me/u/randomfool/6...4-11-12&solo=5

And just because I was curious I flashed back to the stock tune. I never did a log on it and wanted to see if it knocked at all on that. The multiplier eventually back up to 1 but then drops to 0.9 at one point. Here is that log.
http://www.datazap.me/u/randomfool/s...4-11-12&solo=5

One thing to note is first 2 logs were done during the day and the stock log was at night so intake temps different by a good amount. Also my car is stock except a drop-in filter and catback exhaust.

My question for someone more knowledgeable than me is should the multiplier drop at all on the stock tune if you are using 93? Could the knock on the stage 1 tune just be from higher intake temps? Should I not not worry about that much knock on the stage 1 tune? What about stock?

And last I know I could modify the stage 1 tune to pull timing in that RPM/load range but I plan on going on the E85 tune when my tank is empty. I'm just trying to learn more and incase I use 93 in the winter if I should go somewhere else.

Thanks =)
you could try a different brand of fuel.

all you knock seems to be in the 2000-3500 rpm area engine loads 0.6 to 1.1

you could just remove a around a degree of timing in that area.

also maybe look at the Intake air compensation and maybe make it a bit more agressive arround the 87 to 90 odd degree area
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Old 05-25-2016, 04:16 AM   #1238
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Originally Posted by steve99 View Post
you could try a different brand of fuel.

all you knock seems to be in the 2000-3500 rpm area engine loads 0.6 to 1.1

you could just remove a around a degree of timing in that area.

also maybe look at the Intake air compensation and maybe make it a bit more agressive arround the 87 to 90 odd degree area
Thanks for the info. I appreciate the response.
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Old 05-25-2016, 02:53 PM   #1239
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Thanks for the advice! That's good to know on the exhaust vibration but I'll double check everything to make sure nothing loosened up over time, etc. The logs I posted were only 3rd gear pulls. The stage 1 log was on a new tank of gas so I'll do further testing over the weekend and see if the results are just as poor. Time to start learning how to rescale the maf! Will keep ya posted on the results.
After alot of research, experimenting and rescaling the MAF, I think I finally scaled my MAF correctly to reasonable limits. Turns out the MAF scales on the OFT stage 2 v2.076 tunes were too aggressive so I used a near-OEM MAF scale which seem to the trick with my stock airbox with a perrin inlet tube/drop-in filter.

Here's my log (warning: it's huge, I jammed my 3rd gear pulls, cruise, and some spirited driving into one big log) http://www.datazap.me/u/gawesome/201...1&solo=0-10-14

Note: The first and third sections are a bunch of WOT 3rd gear pulls. The last two sections was me trying to get some positive FLKC to recover my IAM by doing a lot of low throttle pulls. My IAM is essentially a wild rollercoaster ride

So I think it's safe to say that OFT tunes are too aggressive for catted headers? I get consistent knock corrections around 3000 to 5000 rpm. I applied Wayno's base timing B, and knock correction A and AVCS tables already.

Safe to say my next step is to start removing timing at those rpm ranges using kodename47's knock correction tools?
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Old 05-25-2016, 03:19 PM   #1240
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@G-awesome Looks like you're still getting a ton of FLKC even with the IAM under 0.7. More than earlier logs you posted. I recall seeing one of your logs that was relatively free of flkc with IAM at 1.0. Is the fuel different from that log? If so, whatever fuel you were using there was probably much better than the current one.

http://www.datazap.me/u/gawesome/201...om=12316-12508

The LTFT looks good staying within +- 2-3%, only going past -3% during off throttle decel. With as much knock correcting as you are seeing, Id suggest using one of the stg1 ignition advance tables designed for use with 91 or 98ron petrol as starting point.
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Old 05-25-2016, 03:43 PM   #1241
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@G-awesome Looks like you're still getting a ton of FLKC even with the IAM under 0.7. More than earlier logs you posted. I recall seeing one of your logs that was relatively free of flkc with IAM at 1.0. Is the fuel different from that log? If so, whatever fuel you were using there was probably much better than the current one.

http://www.datazap.me/u/gawesome/201...om=12316-12508

The LTFT looks good staying within +- 2-3%, only going past -3% during off throttle decel. With as much knock correcting as you are seeing, Id suggest using one of the stg1 ignition advance tables designed for use with 91 or 98ron petrol as starting point.
It's the same brand of fuel but just a new tank. There's no other brands other than Chevron in Canada that has 93/94 oct. I did notice the knock increased after the MAF re-scale...which was interesting. Is it because the new MAF scale will alter the air/fuel ratios which would affect the detonation and subsequently the knock corrections?
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Old 05-25-2016, 04:06 PM   #1242
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It's the same brand of fuel but just a new tank. There's no other brands other than Chevron in Canada that has 93/94 oct. I did notice the knock increased after the MAF re-scale...which was interesting. Is it because the new MAF scale will alter the air/fuel ratios which would affect the detonation and subsequently the knock corrections?
That's pretty strange. Looking at your log, your current calibration is decently rich. That's if the O2 is scaled and working correctly. Your afr's go close to 12:1 then progressively richer toward redline (11.2:1) Where it does go slightly "lean" (13.5:1) at the bottom end (presumably because of exhaust scavenge due to cam timing) there is little to no knock correction. You can try to richen the spot up by tweaking the values in the load limit tables.

Here's a 3rd gear pull from your log (12.2:1~11.2:1 afr): http://www.datazap.me/u/gawesome/201...70-12357-12417

Here's on of mine (12.7:1 ~ 12.2:1 w/no knock correction): http://datazap.me/u/solidone/z6-kc1-...81-290-300-311

I don't think it's the AFR's that causing the knock corrections, but I could be wrong.
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Old 05-25-2016, 04:06 PM   #1243
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So after talking to a buddy last week who is was at the track testing shivs new OFH tune(with a tomei uel) I decided to give it a shot. Heres a quick 2nd gear pull (I know 3rd would be better but this is the best I could do for now).
http://www.datazap.me/u/dthissen/log...9?log=0&data=1
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Old 05-29-2016, 03:45 PM   #1244
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So after talking to a buddy last week who is was at the track testing shivs new OFH tune(with a tomei uel) I decided to give it a shot. Heres a quick 2nd gear pull (I know 3rd would be better but this is the best I could do for now).
http://www.datazap.me/u/dthissen/log...9?log=0&data=1
To log anything useful if you want to determine how your engine would behave under track conditions you'd have to run the car much harder. looking at your Oil temps you barely just warmed up the engine to operating temps.

@DarkSunrise is running a similar setup for track. http://www.ft86club.com/forums/showt...=98151&page=42
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Old 05-30-2016, 03:37 PM   #1245
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93 oct, stock airbox, panel filter, cnt uel, top speed OP, recently released OFH stage2 tune, approx 80 degrees, all runs within 10 minutes each other. ran at least all of 3rd at WOT & some of 4th @ WOT.

http://www.datazap.me/u/n8brz/brz?log=0&data=1

http://www.datazap.me/u/n8brz/brz?log=1&data=1

http://www.datazap.me/u/n8brz/brz?log=2&data=1

please take a look and share your knowledge. are there any other channels I should be recording and any that are unnecessary?
i intend to do a follow up when weather gets a bit hotter out in the middle of the afternoon. rarely run the engine hard enough like one would during track time.

Thank You,
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Old 05-30-2016, 04:22 PM   #1246
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93 oct, stock airbox, panel filter, cnt uel, top speed OP, recently released OFH stage2 tune, approx 80 degrees, all runs within 10 minutes each other. ran at least all of 3rd at WOT & some of 4th @ WOT.

http://www.datazap.me/u/n8brz/brz?log=0&data=1

http://www.datazap.me/u/n8brz/brz?log=1&data=1

http://www.datazap.me/u/n8brz/brz?log=2&data=1

please take a look and share your knowledge. are there any other channels I should be recording and any that are unnecessary?
i intend to do a follow up when weather gets a bit hotter out in the middle of the afternoon. rarely run the engine hard enough like one would during track time.

Thank You,

You have up to -2.6 knock correction at higher rpm fairly consistently, looks like that tune is a bit to aggressive for your setup, it was specificly for ofh header. you might be better with the "standard" oft UEL tune.


It also running a bit too rich midrange and upper rpm.
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