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Old 05-03-2020, 06:53 PM   #1905
AKITA
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Perrin MAF scaling 2.75

I've been working on a MAF scaling since installing the Perrin CAI and tube using OFT /Romraider/Vimsh software. LTFT have gone from averaging -7 to just <+-1 as well as STFT averaging <+- 1 albeit seems to be a little leaner than LTFT. So I think data logging will show more as the ECU learns better, but I was curious what more trained eyes thought. The OL pull isn't exactly ideal starting a little high rpm and might have been in 4th gear but I think it reflects what's happening pretty well. Curious on thoughts, wasn't looking to change timing just yet but whether the MAF scaling is looking pretty good.

https://datazap.me/u/akita/0503204?l...zoom=4713-9384

https://datazap.me/u/akita/0503206?l...zoom=1655-1763
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Old 05-15-2020, 09:54 AM   #1906
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yes maf scaling is very good, good job
turn down a bit timings after 6400 and those random knocks triggering AM
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Old 05-24-2020, 02:15 AM   #1907
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2015 brz
91 octane
SBD 500x 7psi
700cc DW
4th gear WOT
How does everything look, guys.

https://datazap.me/u/gillster91/91-w...?log=0&data=31
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Old 05-24-2020, 04:02 AM   #1908
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seems good, those heavy knock corrections at high lownlow rpm you d wanna reduce them a bit
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Old 05-24-2020, 01:29 PM   #1909
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I think that's from be going a WOT at low rpm at 91 octane gas?
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Old 05-25-2020, 01:43 AM   #1910
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of course, but you might want to have it tamed down anyway somehow, those big correction down low at full gas seem like Low speed pre ignition and that is destructive over time
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Old 05-27-2020, 03:42 AM   #1911
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the knocking is due to lean not enough fuel on e73 ??,
2015 brz
91 octane
SBD 500x 7psi
700cc DW
4th gear WOT and partial

https://datazap.me/u/gillster91/log-...&zoom=881-1634
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Old 05-27-2020, 04:30 AM   #1912
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Man, why you keep writing 91 octane, if you re E73 at the mom, i got super confused :P

you still have much DI headroom in that knock zone, reduce PI% and knock will ease
and/or make it richer, it seems to a bit too lean the target


Also DI seems a bit maxed out after 6000rpm, you may want to augment PI% at higher rpm specially if you get real E85 in your tank

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Old 05-29-2020, 03:24 PM   #1913
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2015 brz
e73
SBD 500x 7psi
700cc DW
4th gear WOT and partial

https://datazap.me/u/gillster91/log-...16-25-26-31-36
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Old 05-29-2020, 03:53 PM   #1914
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looks good
but you have to raise Port injection at high rpm
keep DI opening time under 6ms preferably lower so to have headroom when ambient air is cold
Ignition end of di to spark is too short, keep it higher than 2ms because if gets cold or you go e85, it starts misfiring around 1ms
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Old 06-01-2020, 08:13 AM   #1915
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https://datazap.me/u/solidone/z85cd?log=0&data=1-10

That increase IAT from oil cooler messing with fuel trims, but man this thing stays strong in the heat now. NO power fade with heatsoak via butt dyno. E85 log from earlier yesterday.
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Old 06-02-2020, 03:48 PM   #1916
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Hot day, on e78, hard to find full e85,
2015 brz, SBD 500x 7psi, 700cc DW
4th gear WOT and partial

https://datazap.me/u/gillster91/log-...24?log=0&data=
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Old 07-04-2020, 09:53 AM   #1917
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First Ecuteck Log

I made the switch from OFT to EcuTek. This is my first log using the Ecu Connect App.

I am running the SBD 400X with an ECBS.

Have I logged all the correct data points?

https://datazap.me/u/randomthoughts/...&data=14-23-24
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Old 07-07-2020, 05:39 PM   #1918
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Did some datalogging to try out VirtualDyno. Car feels really good, I've been on the same tune from Sasha at OnPoint Dyno for over a year, with only an update in May to increase the rev limit to 7500rpm (from 7200rpm for a bit more room on circuits).

Should I be concerned that my Advance Multiplier is defaulting to 0.7? As far as all the other data points, I don't see any issues.

https://datazap.me/u/jbezugs/3rd-gea...a=5-6-16-27-28
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