OFT Openflash V4 tunes released for 2017+ with Launch/FFS - Page 42 - Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Community

dutchman1 · 01-20-2019, 04:45 PM

Quote:

Originally Posted by steve99

V4 is a much better tune to run on 2017 plus cars

Updated to the v4.03 tune.

Car does run a little differently, exhaust tone is noticeably quieter. Feel like there was a bit more power in the midrange on the v3, but maybe the power band is just smoother in the v4.

But the rev limiter still does the same thing, hits at 7600 rpms (indicated 58/59 mph), then the rpms drop down to 7100 (indicated 54mph) or so before revving back up. That's gonna kill me at autocross. Stock limiter did the same thing, but the drop wasn't as noticeable (7400 to 7200).

Is there something simple I can do to change that or is that an integral part of the tune design I'm just gonna have to live with?

Kodename47 · 01-20-2019, 07:14 PM

Soft rev limiter maybe? Get rid of the ignition timing drop at the bottom of the base timing table and change limiter thresholds closer together?

dutchman1 · 01-20-2019, 07:57 PM

Quote:

Originally Posted by Kodename47

Soft rev limiter maybe? Get rid of the ignition timing drop at the bottom of the base timing table and change limiter thresholds closer together?

I'm alright with the power dropping off a little, as long as it stays at 7600. In second gear there shouldn't be a significant amount of load to sustain 7600. Could I keep the base timing table unchanged (so the limiter was still "soft"), but still move the limiter thresholds closer together?

I haven't messed with romraider yet, not sure how adjustable everything is.

Yoshoobaroo · 01-20-2019, 10:08 PM

Quote:

Originally Posted by dutchman1

I'm alright with the power dropping off a little, as long as it stays at 7600. In second gear there shouldn't be a significant amount of load to sustain 7600. Could I keep the base timing table unchanged (so the limiter was still "soft"), but still move the limiter thresholds closer together?

I haven't messed with romraider yet, not sure how adjustable everything is.

Is your car MT or AT?

dutchman1 · 01-20-2019, 10:36 PM

Quote:

Originally Posted by Yoshoobaroo

Is your car MT or AT?

MT. Stock drivetrain except for ptuning el header.

mkodama · 01-21-2019, 02:06 PM

I installed Openflash for the first time and I’m noticing the active battery charging control on my 2017 BRZ is disabled and now it just sticks at 14.0V. Is this something specific to Openflash or to my car? Would be nice to have this feature back...

tomm.brz · 01-21-2019, 02:13 PM

sometimes it just stuck at 14.it doesnt depend on ecu tune
it depends on some services like AC or defrost o headlights on, dont really know more
but you are good don t worry

Brandon_Nguyen · 01-30-2019, 08:45 AM

I was wondering if anyone had the previous v3 or v2 tunes, I noticed that they are no longer on the Openflash website. I prefer them over the v4 but no longer have the files for the old tunes

elBarto · 01-30-2019, 01:56 PM

Quote:

Originally Posted by Brandon_Nguyen

I was wondering if anyone had the previous v3 or v2 tunes, I noticed that they are no longer on the Openflash website. I prefer them over the v4 but no longer have the files for the old tunes

I have the V2 on my Gdrive:

OTS V2.067

Guest · 01-31-2019, 02:30 AM

Quote:

Originally Posted by Brandon_Nguyen

I was wondering if anyone had the previous v3 or v2 tunes, I noticed that they are no longer on the Openflash website. I prefer them over the v4 but no longer have the files for the old tunes

Same, would love to have the definitions for V3 so I could tweak the cold start. Just feels better than V4.

mkodama · 02-04-2019, 01:43 AM

Quote:

Originally Posted by tomm.brz

sometimes it just stuck at 14.it doesnt depend on ecu tune
it depends on some services like AC or defrost o headlights on, dont really know more
but you are good don t worry

Confirmed this feature no longer works since adding the tune.

Edit: Kinda wondering if the AC shutoff on full throttle is also disabled now...

tomm.brz · 02-04-2019, 03:44 AM

they are not commanded by the tune in the ECM, you are thinking wrong..

wally · 02-06-2019, 03:49 PM

-

tomm.brz · 02-06-2019, 06:41 PM

they literally linked them few posts ago

01-20-2019, 07:14 PM	#576
Kodename47 Senior Member Join Date: Oct 2012 Drives: UK GT86 Location: UK Posts: 3,040 Thanks: 185 Thanked 1,629 Times in 1,112 Posts Mentioned: 155 Post(s) Tagged: 1 Thread(s)	Soft rev limiter maybe? Get rid of the ignition timing drop at the bottom of the base timing table and change limiter thresholds closer together? __________________ .: Stealth 86 :. Abbey Motorsport/K47 Tuned Sprintex 210 Supercharger Kodename 47 DJ: Soundcloud / Instagram / Facebook

02-06-2019, 03:49 PM	#587
wally SosMula Join Date: May 2017 Drives: 2013 DD White pearl Location: Sweden Posts: 58 Thanks: 25 Thanked 16 Times in 11 Posts Mentioned: 1 Post(s) Tagged: 0 Thread(s)	- __________________ Rota Grid 18x9,5 ET+38 Valenti CBW GCS Shark Antenna Acrylic Headlight Covers Last edited by wally; 02-07-2019 at 02:01 AM. Reason: elBarto provided link

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01-21-2019, 02:06 PM	#580
mkodama 86Drive Challenge Join Date: Dec 2016 Drives: 2017 BRZ PP Location: Menlo Park, CA Posts: 104 Thanks: 31 Thanked 65 Times in 40 Posts Mentioned: 0 Post(s) Tagged: 0 Thread(s)	I installed Openflash for the first time and I’m noticing the active battery charging control on my 2017 BRZ is disabled and now it just sticks at 14.0V. Is this something specific to Openflash or to my car? Would be nice to have this feature back...

01-21-2019, 02:13 PM	#581
tomm.brz Senior Member Join Date: Jan 2017 Drives: brz 2017 hksv2 Location: italy Posts: 2,195 Thanks: 500 Thanked 1,065 Times in 774 Posts Mentioned: 65 Post(s) Tagged: 0 Thread(s)	sometimes it just stuck at 14.it doesnt depend on ecu tune it depends on some services like AC or defrost o headlights on, dont really know more but you are good don t worry

01-30-2019, 08:45 AM	#582
Brandon_Nguyen Junior Member Join Date: Jan 2019 Drives: 2017 CWP BRZ Location: Socal Posts: 1 Thanks: 0 Thanked 0 Times in 0 Posts Mentioned: 0 Post(s) Tagged: 0 Thread(s)	I was wondering if anyone had the previous v3 or v2 tunes, I noticed that they are no longer on the Openflash website. I prefer them over the v4 but no longer have the files for the old tunes

02-04-2019, 03:44 AM	#586
tomm.brz Senior Member Join Date: Jan 2017 Drives: brz 2017 hksv2 Location: italy Posts: 2,195 Thanks: 500 Thanked 1,065 Times in 774 Posts Mentioned: 65 Post(s) Tagged: 0 Thread(s)	they are not commanded by the tune in the ECM, you are thinking wrong..

02-06-2019, 06:41 PM	#588
tomm.brz Senior Member Join Date: Jan 2017 Drives: brz 2017 hksv2 Location: italy Posts: 2,195 Thanks: 500 Thanked 1,065 Times in 774 Posts Mentioned: 65 Post(s) Tagged: 0 Thread(s)	they literally linked them few posts ago

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